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Chuck July 28th 08 09:14 PM

Grady White falls off of boat lift - Pics
 
I know... I only post when I have a problem. This happened two weeks ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. Photos of the boat, the
bolts, and some telltale corrosion streaks are stored at the links below.

www.thespaceexplorers.com/corrodedbolts3.jpg (boat in water)

www.thespaceexplorers.com/corrodedbolts1.jpg (3/4 galv. bolts corroded away
to nothing)

www.thespaceexplorers.com/corrodedbolts2.jpg (bolt rust stains on pulley
housing)

OK. So my question is.......... is there any way to diagnose a galvanized
bolts integrity before it rusts through like this again? I can't seem to
find my portable X-ray machine. I also can't quite figure out how to do a
simple swapout on the other three. I don't know anybody who swaps their
lift bolts out every few years!

Chuck


Eisboch July 28th 08 09:19 PM

Grady White falls off of boat lift - Pics
 

"Chuck" wrote in message
news:GMpjk.273665$yE1.249046@attbi_s21...
I know... I only post when I have a problem. This happened two weeks ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. Photos of the boat, the
bolts, and some telltale corrosion streaks are stored at the links below.

www.thespaceexplorers.com/corrodedbolts3.jpg (boat in water)

www.thespaceexplorers.com/corrodedbolts1.jpg (3/4 galv. bolts corroded
away to nothing)

www.thespaceexplorers.com/corrodedbolts2.jpg (bolt rust stains on pulley
housing)

OK. So my question is.......... is there any way to diagnose a galvanized
bolts integrity before it rusts through like this again? I can't seem to
find my portable X-ray machine. I also can't quite figure out how to do
a simple swapout on the other three. I don't know anybody who swaps their
lift bolts out every few years!

Chuck



Salt water or fresh?

Eisboch



HK July 28th 08 09:20 PM

Grady White falls off of boat lift - Pics
 
Chuck wrote:
I know... I only post when I have a problem. This happened two weeks
ago. The bolt on the front outer piling holding the boat lift cradle
pulley sheared right off and the boat went in the drink. Photos of the
boat, the bolts, and some telltale corrosion streaks are stored at the
links below.

www.thespaceexplorers.com/corrodedbolts3.jpg (boat in water)

www.thespaceexplorers.com/corrodedbolts1.jpg (3/4 galv. bolts corroded
away to nothing)

www.thespaceexplorers.com/corrodedbolts2.jpg (bolt rust stains on pulley
housing)

OK. So my question is.......... is there any way to diagnose a
galvanized bolts integrity before it rusts through like this again? I
can't seem to find my portable X-ray machine. I also can't quite
figure out how to do a simple swapout on the other three. I don't know
anybody who swaps their lift bolts out every few years!

Chuck


Since apparently no one was injured, the important questions:

Was the boat damaged? Will your insurance cover any damages to the boat
or the lift?


Maybe you need to check the area for stray electrical currents...and
also change all the bolts and use nuts and bolts you can swap out every
season.

John H.[_5_] July 28th 08 09:21 PM

Grady White falls off of boat lift - Pics
 
On Mon, 28 Jul 2008 20:14:30 GMT, "Chuck" wrote:

I know... I only post when I have a problem. This happened two weeks ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. Photos of the boat, the
bolts, and some telltale corrosion streaks are stored at the links below.

www.thespaceexplorers.com/corrodedbolts3.jpg (boat in water)

www.thespaceexplorers.com/corrodedbolts1.jpg (3/4 galv. bolts corroded away
to nothing)

www.thespaceexplorers.com/corrodedbolts2.jpg (bolt rust stains on pulley
housing)

OK. So my question is.......... is there any way to diagnose a galvanized
bolts integrity before it rusts through like this again? I can't seem to
find my portable X-ray machine. I also can't quite figure out how to do a
simple swapout on the other three. I don't know anybody who swaps their
lift bolts out every few years!

Chuck


I'd be putting stainless steel bolts in there as fast as I could. If you
can't unscrew the nut, then a hammer and chisel may be an alternative.
Another alternative may be a grinder.

Short Wave Sportfishing July 28th 08 09:22 PM

Grady White falls off of boat lift - Pics
 
On Mon, 28 Jul 2008 20:14:30 GMT, "Chuck" wrote:

I know... I only post when I have a problem. This happened two weeks ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. Photos of the boat, the
bolts, and some telltale corrosion streaks are stored at the links below.

www.thespaceexplorers.com/corrodedbolts3.jpg (boat in water)

www.thespaceexplorers.com/corrodedbolts1.jpg (3/4 galv. bolts corroded away
to nothing)

www.thespaceexplorers.com/corrodedbolts2.jpg (bolt rust stains on pulley
housing)

OK. So my question is.......... is there any way to diagnose a galvanized
bolts integrity before it rusts through like this again? I can't seem to
find my portable X-ray machine. I also can't quite figure out how to do a
simple swapout on the other three. I don't know anybody who swaps their
lift bolts out every few years!


I'm probably wrong, but that looks like electrolysis. Which means
that you have some kind of current leakage somewhere - maybe from a
shore charger?

Is your boat isolated from shore side current?

JimH[_2_] July 28th 08 09:24 PM

Grady White falls off of boat lift - Pics
 
On Jul 28, 4:20*pm, hk wrote:
Chuck wrote:
I know... I only post when I have a problem. *This happened two weeks
ago. The bolt on the front outer piling holding the boat lift cradle
pulley sheared right off and the boat went in the drink. *Photos of the
boat, the bolts, and some telltale corrosion streaks are stored at the
links below.


http://www.thespaceexplorers.com/cor...lts3.jpg*(boat in water)


http://www.thespaceexplorers.com/cor...olts1.jpg*(3/4 galv. bolts corroded
away to nothing)


http://www.thespaceexplorers.com/cor...olts2.jpg(bolt rust stains on pulley
housing)


OK. *So my question is.......... is there any way to diagnose a
galvanized bolts integrity before it rusts through like this again? * I
can't seem to find my portable X-ray machine. * I also can't quite
figure out how to do a simple swapout on the other three. *I don't know
anybody who swaps their lift bolts out every few years!


Chuck


Since apparently no one was injured, the important questions:

Was the boat damaged? Will your insurance cover any damages to the boat
or the lift?

Maybe you need to check the area for stray electrical currents...and
also change all the bolts and use nuts and bolts you can swap out every
season.


I have seen bolts looking like that taken off a wooden roller coaster
being restored. A friend of mine was helping with the restoration.
In this case constant friction and tension was the problem.

As a side note: Chuck, no offense but I can understand why you posted
the question here and not at your place. ;-)

John H.[_5_] July 28th 08 09:29 PM

Grady White falls off of boat lift - Pics
 
On Mon, 28 Jul 2008 13:24:54 -0700 (PDT), JimH wrote:

On Jul 28, 4:20*pm, hk wrote:
Chuck wrote:
I know... I only post when I have a problem. *This happened two weeks
ago. The bolt on the front outer piling holding the boat lift cradle
pulley sheared right off and the boat went in the drink. *Photos of the
boat, the bolts, and some telltale corrosion streaks are stored at the
links below.


http://www.thespaceexplorers.com/cor...lts3.jpg*(boat in water)


http://www.thespaceexplorers.com/cor...olts1.jpg*(3/4 galv. bolts corroded
away to nothing)


http://www.thespaceexplorers.com/cor...olts2.jpg(bolt rust stains on pulley
housing)


OK. *So my question is.......... is there any way to diagnose a
galvanized bolts integrity before it rusts through like this again? * I
can't seem to find my portable X-ray machine. * I also can't quite
figure out how to do a simple swapout on the other three. *I don't know
anybody who swaps their lift bolts out every few years!


Chuck


Since apparently no one was injured, the important questions:

Was the boat damaged? Will your insurance cover any damages to the boat
or the lift?

Maybe you need to check the area for stray electrical currents...and
also change all the bolts and use nuts and bolts you can swap out every
season.


I have seen bolts looking like that taken off a wooden roller coaster
being restored. A friend of mine was helping with the restoration.
In this case constant friction and tension was the problem.

As a side note: Chuck, no offense but I can understand why you posted
the question here and not at your place. ;-)


Your place?

HK July 28th 08 09:32 PM

Grady White falls off of boat lift - Pics
 
JimH wrote:
On Jul 28, 4:20 pm, hk wrote:
Chuck wrote:
I know... I only post when I have a problem. This happened two weeks
ago. The bolt on the front outer piling holding the boat lift cradle
pulley sheared right off and the boat went in the drink. Photos of the
boat, the bolts, and some telltale corrosion streaks are stored at the
links below.
www.thespaceexplorers.com/corrodedbolts3.jpg (boat in water)
www.thespaceexplorers.com/corrodedbolts1.jpg (3/4 galv. bolts corroded
away to nothing)
http://www.thespaceexplorers.com/cor...olts2.jpg(bolt rust stains on pulley
housing)
OK. So my question is.......... is there any way to diagnose a
galvanized bolts integrity before it rusts through like this again? I
can't seem to find my portable X-ray machine. I also can't quite
figure out how to do a simple swapout on the other three. I don't know
anybody who swaps their lift bolts out every few years!
Chuck

Since apparently no one was injured, the important questions:

Was the boat damaged? Will your insurance cover any damages to the boat
or the lift?

Maybe you need to check the area for stray electrical currents...and
also change all the bolts and use nuts and bolts you can swap out every
season.


I have seen bolts looking like that taken off a wooden roller coaster
being restored. A friend of mine was helping with the restoration.
In this case constant friction and tension was the problem.

As a side note: Chuck, no offense but I can understand why you posted
the question here and not at your place. ;-)



Different chuck, methinks.

Anyone, sort of connected, I pull a couple of bolts on my boat trailer
every year, just to see how they are doing, and I pull the wheels once a
season, mainly to make sure I can get them off if I have a flat, but
also to see what is going on behind them, in corrosion.

Corrosion can be a real problem on salt water boats, especially. When I
installed the deck hardware on my Parker, I first took the hardware down
the street from the dealer to a metal working shop, and had the owner
cut stainless steel backing plates for me, so that the stainless steel
hardware and stainless steel nuts and bolts would be touching only
stainless steel, not aluminum. Stainless in contact with aluminum can be
a problem.

The backing plates were cut from a piece of 3/8" stainless scrap the guy
had in the shop. He cut four different plates for me and drilled them
for $20 total.


JimH[_2_] July 28th 08 09:39 PM

Grady White falls off of boat lift - Pics
 
On Jul 28, 4:32*pm, HK wrote:
JimH wrote:
On Jul 28, 4:20 pm, hk wrote:
Chuck wrote:
I know... I only post when I have a problem. *This happened two weeks
ago. The bolt on the front outer piling holding the boat lift cradle
pulley sheared right off and the boat went in the drink. *Photos of the
boat, the bolts, and some telltale corrosion streaks are stored at the
links below.
http://www.thespaceexplorers.com/cor...olts3.jpg(boat in water)
www.thespaceexplorers.com/corrodedbolts1.jpg(3/4 galv. bolts corroded
away to nothing)
http://www.thespaceexplorers.com/cor...2.jpg(boltrust stains on pulley
housing)
OK. *So my question is.......... is there any way to diagnose a
galvanized bolts integrity before it rusts through like this again? * I
can't seem to find my portable X-ray machine. * I also can't quite
figure out how to do a simple swapout on the other three. *I don't know
anybody who swaps their lift bolts out every few years!
Chuck
Since apparently no one was injured, the important questions:


Was the boat damaged? Will your insurance cover any damages to the boat
or the lift?


Maybe you need to check the area for stray electrical currents...and
also change all the bolts and use nuts and bolts you can swap out every
season.


I have seen bolts looking like that taken off a wooden roller coaster
being restored. *A friend of mine was helping with the restoration.
In this case constant friction and tension was the problem.


As a side note: *Chuck, no offense but I can understand why you posted
the question here and not at your place. *;-)


Different chuck, methinks.



Must be. But I would not be surprised to see Mr. Gould post boating
related problems here and not has his place.

To Chuck: Sorry for disrupting your post but it looks like you are
receiving some great advice.



Chuck July 28th 08 11:03 PM

Grady White falls off of boat lift - Pics
 

"JimH" wrote in message
...
On Jul 28, 4:32 pm, HK wrote:
JimH wrote:
On Jul 28, 4:20 pm, hk wrote:
Chuck wrote:
I know... I only post when I have a problem. This happened two weeks
ago. The bolt on the front outer piling holding the boat lift cradle
pulley sheared right off and the boat went in the drink. Photos of the
boat, the bolts, and some telltale corrosion streaks are stored at the
links below.
http://www.thespaceexplorers.com/cor...olts3.jpg(boat in water)
www.thespaceexplorers.com/corrodedbolts1.jpg(3/4 galv. bolts corroded
away to nothing)
http://www.thespaceexplorers.com/cor...2.jpg(boltrust stains on pulley
housing)
OK. So my question is.......... is there any way to diagnose a
galvanized bolts integrity before it rusts through like this again? I
can't seem to find my portable X-ray machine. I also can't quite
figure out how to do a simple swapout on the other three. I don't know
anybody who swaps their lift bolts out every few years!
Chuck
Since apparently no one was injured, the important questions:


Was the boat damaged? Will your insurance cover any damages to the boat
or the lift?


Maybe you need to check the area for stray electrical currents...and
also change all the bolts and use nuts and bolts you can swap out every
season.


I have seen bolts looking like that taken off a wooden roller coaster
being restored. A friend of mine was helping with the restoration.
In this case constant friction and tension was the problem.


As a side note: Chuck, no offense but I can understand why you posted
the question here and not at your place. ;-)


Different chuck, methinks.



Must be. But I would not be surprised to see Mr. Gould post boating
related problems here and not has his place.

To Chuck: Sorry for disrupting your post but it looks like you are
receiving some great advice.

Yep... its a different Chuck here. Too embarassed to remind everyone what I
asked last go-around. Just to clarify, here is a link to a picture of the
lift sheave bracket. I like the idea of replacing the old galvanized 3/4"
bolts with stainless steel ones. I am trying to figure out how I can do
this myself without enlisting a boat lift company who will charge me BIG
$$$$ for replacing the bolt on the other side. Have you heard of this
happening very much????

http://www.thespaceexplorers.com/gal...rackets001.jpg
http://www.thespaceexplorers.com/gal...rackets002.jpg
http://www.thespaceexplorers.com/gal...rackets003.jpg


DK July 29th 08 01:15 AM

Grady White falls off of boat lift - Pics
 
John H. wrote:
On Mon, 28 Jul 2008 13:24:54 -0700 (PDT), JimH wrote:

On Jul 28, 4:20 pm, hk wrote:
Chuck wrote:
I know... I only post when I have a problem. This happened two weeks
ago. The bolt on the front outer piling holding the boat lift cradle
pulley sheared right off and the boat went in the drink. Photos of the
boat, the bolts, and some telltale corrosion streaks are stored at the
links below.
www.thespaceexplorers.com/corrodedbolts3.jpg (boat in water)
www.thespaceexplorers.com/corrodedbolts1.jpg (3/4 galv. bolts corroded
away to nothing)
http://www.thespaceexplorers.com/cor...olts2.jpg(bolt rust stains on pulley
housing)
OK. So my question is.......... is there any way to diagnose a
galvanized bolts integrity before it rusts through like this again? I
can't seem to find my portable X-ray machine. I also can't quite
figure out how to do a simple swapout on the other three. I don't know
anybody who swaps their lift bolts out every few years!
Chuck
Since apparently no one was injured, the important questions:

Was the boat damaged? Will your insurance cover any damages to the boat
or the lift?

Maybe you need to check the area for stray electrical currents...and
also change all the bolts and use nuts and bolts you can swap out every
season.

I have seen bolts looking like that taken off a wooden roller coaster
being restored. A friend of mine was helping with the restoration.
In this case constant friction and tension was the problem.

As a side note: Chuck, no offense but I can understand why you posted
the question here and not at your place. ;-)


Your place?


Wow. Warp17 is dumber than I thought. He thinks he's talking to the
guy that binned him?

CalifBill July 29th 08 01:40 AM

Grady White falls off of boat lift - Pics
 

"Short Wave Sportfishing" wrote in message
...
On Mon, 28 Jul 2008 20:14:30 GMT, "Chuck" wrote:

I know... I only post when I have a problem. This happened two weeks ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. Photos of the boat, the
bolts, and some telltale corrosion streaks are stored at the links below.

www.thespaceexplorers.com/corrodedbolts3.jpg (boat in water)

www.thespaceexplorers.com/corrodedbolts1.jpg (3/4 galv. bolts corroded
away
to nothing)

www.thespaceexplorers.com/corrodedbolts2.jpg (bolt rust stains on pulley
housing)

OK. So my question is.......... is there any way to diagnose a galvanized
bolts integrity before it rusts through like this again? I can't seem to
find my portable X-ray machine. I also can't quite figure out how to do
a
simple swapout on the other three. I don't know anybody who swaps their
lift bolts out every few years!


I'm probably wrong, but that looks like electrolysis. Which means
that you have some kind of current leakage somewhere - maybe from a
shore charger?

Is your boat isolated from shore side current?


How about adding some zincs?



[email protected] July 29th 08 02:11 AM

Grady White falls off of boat lift - Pics
 
It could also be a case of disimular metals causing this accelerated
corrosion.

Marty

On Jul 28, 4:14*pm, "Chuck" wrote:
I know... I only post when I have a problem. *This happened two weeks ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. *Photos of the boat, the
bolts, and some telltale corrosion streaks are stored at the links below.

http://www.thespaceexplorers.com/cor...lts3.jpg*(boat in water)

http://www.thespaceexplorers.com/cor...olts1.jpg*(3/4 galv. bolts corroded away
to nothing)

http://www.thespaceexplorers.com/cor...olts2.jpg(bolt rust stains on pulley
housing)

OK. *So my question is.......... is there any way to diagnose a galvanized
bolts integrity before it rusts through like this again? * I can't seem to
find my portable X-ray machine. * I also can't quite figure out how to do a
simple swapout on the other three. *I don't know anybody who swaps their
lift bolts out every few years!

Chuck



JimH[_2_] July 29th 08 02:15 AM

Grady White falls off of boat lift - Pics
 
On Jul 28, 8:15*pm, DK wrote:
John H. wrote:
On Mon, 28 Jul 2008 13:24:54 -0700 (PDT), JimH wrote:


On Jul 28, 4:20 pm, hk wrote:
Chuck wrote:
I know... I only post when I have a problem. *This happened two weeks
ago. The bolt on the front outer piling holding the boat lift cradle
pulley sheared right off and the boat went in the drink. *Photos of the
boat, the bolts, and some telltale corrosion streaks are stored at the
links below.
http://www.thespaceexplorers.com/cor...olts3.jpg(boat in water)
www.thespaceexplorers.com/corrodedbolts1.jpg(3/4 galv. bolts corroded
away to nothing)
http://www.thespaceexplorers.com/cor...2.jpg(boltrust stains on pulley
housing)
OK. *So my question is.......... is there any way to diagnose a
galvanized bolts integrity before it rusts through like this again? * I
can't seem to find my portable X-ray machine. * I also can't quite
figure out how to do a simple swapout on the other three. *I don't know
anybody who swaps their lift bolts out every few years!
Chuck
Since apparently no one was injured, the important questions:


Was the boat damaged? Will your insurance cover any damages to the boat
or the lift?


Maybe you need to check the area for stray electrical currents...and
also change all the bolts and use nuts and bolts you can swap out every
season.
I have seen bolts looking like that taken off a wooden roller coaster
being restored. *A friend of mine was helping with the restoration.
In this case constant friction and tension was the problem.


As a side note: *Chuck, no offense but I can understand why you posted
the question here and not at your place. *;-)


Your place?


Wow. *Warp17 is dumber than I thought. *He thinks he's talking to the
guy that binned him?


That should be..........."the guy *WHO* binned him"

Stupid is as stupid does.

Eh?

Larry July 29th 08 02:19 AM

Grady White falls off of boat lift - Pics
 
"Chuck" wrote in news:GMpjk.273665$yE1.249046@attbi_s21:

I don't know anybody who swaps their
lift bolts out every few years!


We do now!


Wayne.B July 29th 08 03:46 AM

Grady White falls off of boat lift - Pics
 
On Mon, 28 Jul 2008 20:14:30 GMT, "Chuck" wrote:

I know... I only post when I have a problem. This happened two weeks ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. Photos of the boat, the
bolts, and some telltale corrosion streaks are stored at the links below.


Chuck, does that bolt serve as the axle for the cradle pulley? If so
you want to find new ones that are hollow with a grease fitting on the
end. My lift is set up that way and being able to grease them
periodically eliminates a lot of friction between the axle and the
pulley. It minimizes corrosion also.

Check picture #11 for an example:

http://www.landandseamarine.com/lifts2.htm

The way you replace them is to take the boat off the lift, raise the
cradle, temporarily bolt 2 x 10s between the inner and outer pilings,
and then lower the cradle onto them. That takes the load off the
cables so you can replace the pulleys, axles, etc. Take a hard look
at the cables at the same time.


[email protected] July 29th 08 11:49 AM

Grady White falls off of boat lift - Pics
 
On Mon, 28 Jul 2008 22:03:57 +0000, Chuck wrote:


Yep... its a different Chuck here. Too embarassed to remind everyone
what I asked last go-around. Just to clarify, here is a link to a
picture of the lift sheave bracket. I like the idea of replacing the old
galvanized 3/4" bolts with stainless steel ones. I am trying to figure
out how I can do this myself without enlisting a boat lift company who
will charge me BIG $$$$ for replacing the bolt on the other side. Have
you heard of this happening very much????


That piling looks rather new. The problem you *might* be having is with
the new pressure treated preservatives, ACQ or the like. There is a lot
more copper in them. Zinc is anodic to copper. At a minimum you should
be using hot dipped galvanized. If you use stainless, be careful, not
all stainless will work as planned.

http://www.strongtie.com/productuse/ptwoodfaqs.html


John H.[_5_] July 29th 08 12:11 PM

Grady White falls off of boat lift - Pics
 
On Mon, 28 Jul 2008 18:11:25 -0700 (PDT), "
wrote:

It could also be a case of disimular metals causing this accelerated
corrosion.

Marty

On Jul 28, 4:14*pm, "Chuck" wrote:
I know... I only post when I have a problem. *This happened two weeks ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. *Photos of the boat, the
bolts, and some telltale corrosion streaks are stored at the links below.

http://www.thespaceexplorers.com/cor...lts3.jpg*(boat in water)

http://www.thespaceexplorers.com/cor...olts1.jpg*(3/4 galv. bolts corroded away
to nothing)

http://www.thespaceexplorers.com/cor...olts2.jpg(bolt rust stains on pulley
housing)

OK. *So my question is.......... is there any way to diagnose a galvanized
bolts integrity before it rusts through like this again? * I can't seem to
find my portable X-ray machine. * I also can't quite figure out how to do a
simple swapout on the other three. *I don't know anybody who swaps their
lift bolts out every few years!

Chuck


I wondered if there might be a reaction between the zinc coating and the
chromium copper arsenate in the treated lumber. Lo and behold:

http://www.fpl.fs.fed.us/documnts/pdf1987/baker87a.pdf

Look at the comparisons between galvanized, aluminum, and stainless steel
rates of corrosion when in treated wood.

[email protected] July 29th 08 12:57 PM

Grady White falls off of boat lift - Pics
 
On Jul 28, 4:24*pm, JimH wrote:
On Jul 28, 4:20*pm, hk wrote:





Chuck wrote:
I know... I only post when I have a problem. *This happened two weeks
ago. The bolt on the front outer piling holding the boat lift cradle
pulley sheared right off and the boat went in the drink. *Photos of the
boat, the bolts, and some telltale corrosion streaks are stored at the
links below.


http://www.thespaceexplorers.com/cor...lts3.jpg*(boat in water)


http://www.thespaceexplorers.com/cor...olts1.jpg*(3/4 galv. bolts corroded
away to nothing)


http://www.thespaceexplorers.com/cor...2.jpg(boltrust stains on pulley
housing)


OK. *So my question is.......... is there any way to diagnose a
galvanized bolts integrity before it rusts through like this again? * I
can't seem to find my portable X-ray machine. * I also can't quite
figure out how to do a simple swapout on the other three. *I don't know
anybody who swaps their lift bolts out every few years!


Chuck


Since apparently no one was injured, the important questions:


Was the boat damaged? Will your insurance cover any damages to the boat
or the lift?


Maybe you need to check the area for stray electrical currents...and
also change all the bolts and use nuts and bolts you can swap out every
season.


I have seen bolts looking like that taken off a wooden roller coaster
being restored. *A friend of mine was helping with the restoration.
In this case constant friction and tension was the problem.

As a side note: *Chuck, no offense but I can understand why you posted
the question here and not at your place. *;-)- Hide quoted text -

- Show quoted text -


Tell us, if constant tension was the problem, as you say, why? Was
every bolt in tension beyond it's design strength? Exactly what
happened to the bolt because of tension?

John H.[_5_] July 29th 08 01:41 PM

Grady White falls off of boat lift - Pics
 
On Tue, 29 Jul 2008 08:30:30 -0400, Gene Kearns
wrote:

On Mon, 28 Jul 2008 18:11:25 -0700 (PDT), penned
the following well considered thoughts to the readers of rec.boats:

It could also be a case of disimular metals causing this accelerated
corrosion.

Marty


Thus..... the plastic bushings...... and a check for stray
current.....

On Jul 28, 4:14*pm, "Chuck" wrote:
I know... I only post when I have a problem. *This happened two weeks ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. *Photos of the boat, the
bolts, and some telltale corrosion streaks are stored at the links below.

http://www.thespaceexplorers.com/cor...lts3.jpg*(boat in water)

http://www.thespaceexplorers.com/cor...olts1.jpg*(3/4 galv. bolts corroded away
to nothing)

http://www.thespaceexplorers.com/cor...olts2.jpg(bolt rust stains on pulley
housing)

OK. *So my question is.......... is there any way to diagnose a galvanized
bolts integrity before it rusts through like this again? * I can't seem to
find my portable X-ray machine. * I also can't quite figure out how to do a
simple swapout on the other three. *I don't know anybody who swaps their
lift bolts out every few years!

Chuck


I like that plastic bushing idea.

Don White July 29th 08 02:37 PM

Grady White falls off of boat lift - Pics
 

"JimH" wrote in message
...
On Jul 28, 8:15 pm, DK wrote:
John H. wrote:
On Mon, 28 Jul 2008 13:24:54 -0700 (PDT), JimH wrote:


On Jul 28, 4:20 pm, hk wrote:
Chuck wrote:
I know... I only post when I have a problem. This happened two weeks
ago. The bolt on the front outer piling holding the boat lift cradle
pulley sheared right off and the boat went in the drink. Photos of
the
boat, the bolts, and some telltale corrosion streaks are stored at
the
links below.
http://www.thespaceexplorers.com/cor...olts3.jpg(boat in water)
www.thespaceexplorers.com/corrodedbolts1.jpg(3/4 galv. bolts corroded
away to nothing)
http://www.thespaceexplorers.com/cor...2.jpg(boltrust stains on pulley
housing)
OK. So my question is.......... is there any way to diagnose a
galvanized bolts integrity before it rusts through like this again? I
can't seem to find my portable X-ray machine. I also can't quite
figure out how to do a simple swapout on the other three. I don't
know
anybody who swaps their lift bolts out every few years!
Chuck
Since apparently no one was injured, the important questions:


Was the boat damaged? Will your insurance cover any damages to the
boat
or the lift?


Maybe you need to check the area for stray electrical currents...and
also change all the bolts and use nuts and bolts you can swap out
every
season.
I have seen bolts looking like that taken off a wooden roller coaster
being restored. A friend of mine was helping with the restoration.
In this case constant friction and tension was the problem.


As a side note: Chuck, no offense but I can understand why you posted
the question here and not at your place. ;-)


Your place?


Wow. Warp17 is dumber than I thought. He thinks he's talking to the
guy that binned him?


That should be..........."the guy *WHO* binned him"

Stupid is as stupid does.

Eh?

---------------------------------------------------------------------

~~ Snerk ~~



[email protected] July 29th 08 04:57 PM

Grady White falls off of boat lift - Pics
 
On Jul 28, 8:15*pm, DK wrote:
John H. wrote:
On Mon, 28 Jul 2008 13:24:54 -0700 (PDT), JimH wrote:


On Jul 28, 4:20 pm, hk wrote:
Chuck wrote:
I know... I only post when I have a problem. *This happened two weeks
ago. The bolt on the front outer piling holding the boat lift cradle
pulley sheared right off and the boat went in the drink. *Photos of the
boat, the bolts, and some telltale corrosion streaks are stored at the
links below.
http://www.thespaceexplorers.com/cor...olts3.jpg(boat in water)
www.thespaceexplorers.com/corrodedbolts1.jpg(3/4 galv. bolts corroded
away to nothing)
http://www.thespaceexplorers.com/cor...2.jpg(boltrust stains on pulley
housing)
OK. *So my question is.......... is there any way to diagnose a
galvanized bolts integrity before it rusts through like this again? * I
can't seem to find my portable X-ray machine. * I also can't quite
figure out how to do a simple swapout on the other three. *I don't know
anybody who swaps their lift bolts out every few years!
Chuck
Since apparently no one was injured, the important questions:


Was the boat damaged? Will your insurance cover any damages to the boat
or the lift?


Maybe you need to check the area for stray electrical currents...and
also change all the bolts and use nuts and bolts you can swap out every
season.
I have seen bolts looking like that taken off a wooden roller coaster
being restored. *A friend of mine was helping with the restoration.
In this case constant friction and tension was the problem.


As a side note: *Chuck, no offense but I can understand why you posted
the question here and not at your place. *;-)


Your place?


Wow. *Warp17 is dumber than I thought. *He thinks he's talking to the
guy that binned him?- Hide quoted text -

- Show quoted text -


Great, he even failed at sucking up!!!!

Chuck July 29th 08 05:46 PM

Grady White falls off of boat lift - Pics
 

"John H." wrote in message
...
On Mon, 28 Jul 2008 18:11:25 -0700 (PDT), "
wrote:

It could also be a case of disimular metals causing this accelerated
corrosion.

Marty

On Jul 28, 4:14 pm, "Chuck" wrote:
I know... I only post when I have a problem. This happened two weeks
ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. Photos of the boat,
the
bolts, and some telltale corrosion streaks are stored at the links
below.

www.thespaceexplorers.com/corrodedbolts3.jpg (boat in water)

www.thespaceexplorers.com/corrodedbolts1.jpg (3/4 galv. bolts corroded
away
to nothing)

http://www.thespaceexplorers.com/cor...olts2.jpg(bolt rust stains on pulley
housing)

OK. So my question is.......... is there any way to diagnose a
galvanized
bolts integrity before it rusts through like this again? I can't seem to
find my portable X-ray machine. I also can't quite figure out how to do
a
simple swapout on the other three. I don't know anybody who swaps their
lift bolts out every few years!

Chuck


I wondered if there might be a reaction between the zinc coating and the
chromium copper arsenate in the treated lumber. Lo and behold:

http://www.fpl.fs.fed.us/documnts/pdf1987/baker87a.pdf

Look at the comparisons between galvanized, aluminum, and stainless steel
rates of corrosion when in treated wood.


That was a good reference. To catch everyone up, YES it is in sal****er.
As far as electrical isolation from shore power, I leave the circuit breaker
for the lift powered at all times since I use the lift a lot. The boat
itself is never connected to shore power. I never leave any part of the
boat or lift hanging down in the sal****er. That last photo of the
new-looking piling was from a neighbor lift where I am now visiting. My
actual one is older and worse looking.

On the other piling, I am going to put a strong lagbolt down the top end and
attach one end of a come-along to it with the other end under the beam
cradle. Then I will try to drive out the bad galvanized bolt with a new
galvanized bold with a thin plastic sleeve on it to isolate it from the
wood. I hate that this happened to me but I guess everyone should take a
look at their own lift situations.

Chuck (another one)


Chuck July 29th 08 05:49 PM

Grady White falls off of boat lift - Pics
 

"Larry" wrote in message
...
"Chuck" wrote in news:GMpjk.273665$yE1.249046@attbi_s21:

I don't know anybody who swaps their
lift bolts out every few years!


We do now!


Yep........ at least once I will have....... :-)


Chuck July 29th 08 05:56 PM

Grady White falls off of boat lift - Pics
 

"Wayne.B" wrote in message
...
On Mon, 28 Jul 2008 20:14:30 GMT, "Chuck" wrote:

I know... I only post when I have a problem. This happened two weeks ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. Photos of the boat, the
bolts, and some telltale corrosion streaks are stored at the links below.


Chuck, does that bolt serve as the axle for the cradle pulley? If so
you want to find new ones that are hollow with a grease fitting on the
end. My lift is set up that way and being able to grease them
periodically eliminates a lot of friction between the axle and the
pulley. It minimizes corrosion also.

Check picture #11 for an example:

http://www.landandseamarine.com/lifts2.htm

The way you replace them is to take the boat off the lift, raise the
cradle, temporarily bolt 2 x 10s between the inner and outer pilings,
and then lower the cradle onto them. That takes the load off the
cables so you can replace the pulleys, axles, etc. Take a hard look
at the cables at the same time.


Excellent idea about the 2x10's. On my pulley, the there is a separate
stainless axle bolt which still looks new, and the 3/4" galvanized bolt for
support that corroded away. No grease fitting on the axle bolt, but it is a
plastic pulley with a small brass bushing. This helped a lot. Thanks.

Chuck


[email protected] July 29th 08 05:59 PM

Grady White falls off of boat lift - Pics
 
On Jul 29, 12:46*pm, "Chuck" wrote:
"John H." wrote in message

...





On Mon, 28 Jul 2008 18:11:25 -0700 (PDT), "
wrote:


It could also be a case of disimular metals causing this accelerated
corrosion.


Marty


On Jul 28, 4:14 pm, "Chuck" wrote:
I know... I only post when I have a problem. This happened two weeks
ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. Photos of the boat,
the
bolts, and some telltale corrosion streaks are stored at the links
below.


http://www.thespaceexplorers.com/cor...olts3.jpg(boat in water)


www.thespaceexplorers.com/corrodedbolts1.jpg(3/4 galv. bolts corroded
away
to nothing)


http://www.thespaceexplorers.com/cor...2.jpg(boltrust stains on pulley
housing)


OK. So my question is.......... is there any way to diagnose a
galvanized
bolts integrity before it rusts through like this again? I can't seem to
find my portable X-ray machine. I also can't quite figure out how to do
a
simple swapout on the other three. I don't know anybody who swaps their
lift bolts out every few years!


Chuck


I wondered if there might be a reaction between the zinc coating and the
chromium copper arsenate in the treated lumber. Lo and behold:


http://www.fpl.fs.fed.us/documnts/pdf1987/baker87a.pdf


Look at the comparisons between galvanized, aluminum, and stainless steel
rates of corrosion when in treated wood.


That was a good reference. *To catch everyone up, YES it is in sal****er.


John H.[_5_] July 29th 08 06:03 PM

Grady White falls off of boat lift - Pics
 
On Tue, 29 Jul 2008 16:46:49 GMT, "Chuck" wrote:


"John H." wrote in message
.. .
On Mon, 28 Jul 2008 18:11:25 -0700 (PDT), "
wrote:

It could also be a case of disimular metals causing this accelerated
corrosion.

Marty

On Jul 28, 4:14 pm, "Chuck" wrote:
I know... I only post when I have a problem. This happened two weeks
ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. Photos of the boat,
the
bolts, and some telltale corrosion streaks are stored at the links
below.

www.thespaceexplorers.com/corrodedbolts3.jpg (boat in water)

www.thespaceexplorers.com/corrodedbolts1.jpg (3/4 galv. bolts corroded
away
to nothing)

http://www.thespaceexplorers.com/cor...olts2.jpg(bolt rust stains on pulley
housing)

OK. So my question is.......... is there any way to diagnose a
galvanized
bolts integrity before it rusts through like this again? I can't seem to
find my portable X-ray machine. I also can't quite figure out how to do
a
simple swapout on the other three. I don't know anybody who swaps their
lift bolts out every few years!

Chuck


I wondered if there might be a reaction between the zinc coating and the
chromium copper arsenate in the treated lumber. Lo and behold:

http://www.fpl.fs.fed.us/documnts/pdf1987/baker87a.pdf

Look at the comparisons between galvanized, aluminum, and stainless steel
rates of corrosion when in treated wood.


That was a good reference. To catch everyone up, YES it is in sal****er.
As far as electrical isolation from shore power, I leave the circuit breaker
for the lift powered at all times since I use the lift a lot. The boat
itself is never connected to shore power. I never leave any part of the
boat or lift hanging down in the sal****er. That last photo of the
new-looking piling was from a neighbor lift where I am now visiting. My
actual one is older and worse looking.

On the other piling, I am going to put a strong lagbolt down the top end and
attach one end of a come-along to it with the other end under the beam
cradle. Then I will try to drive out the bad galvanized bolt with a new
galvanized bold with a thin plastic sleeve on it to isolate it from the
wood. I hate that this happened to me but I guess everyone should take a
look at their own lift situations.

Chuck (another one)


Good luck with it, Chuck.

Richard Casady July 29th 08 06:19 PM

Grady White falls off of boat lift - Pics
 
On Mon, 28 Jul 2008 17:40:29 -0700, "CalifBill"
wrote:


"Short Wave Sportfishing" wrote in message
.. .
On Mon, 28 Jul 2008 20:14:30 GMT, "Chuck" wrote:

I know... I only post when I have a problem. This happened two weeks ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. Photos of the boat, the
bolts, and some telltale corrosion streaks are stored at the links below.

www.thespaceexplorers.com/corrodedbolts3.jpg (boat in water)

www.thespaceexplorers.com/corrodedbolts1.jpg (3/4 galv. bolts corroded
away
to nothing)

www.thespaceexplorers.com/corrodedbolts2.jpg (bolt rust stains on pulley
housing)

OK. So my question is.......... is there any way to diagnose a galvanized
bolts integrity before it rusts through like this again? I can't seem to
find my portable X-ray machine. I also can't quite figure out how to do
a
simple swapout on the other three. I don't know anybody who swaps their
lift bolts out every few years!


I'm probably wrong, but that looks like electrolysis. Which means
that you have some kind of current leakage somewhere - maybe from a
shore charger?

Is your boat isolated from shore side current?


How about adding some zincs?


These are galvanized bolts. Adding zinc to zinc will accomplish
little.

Casady

Larry July 29th 08 06:50 PM

Grady White falls off of boat lift - Pics
 
"Chuck" wrote in
news:bSHjk.274888$yE1.260010@attbi_s21:


"Larry" wrote in message
...
"Chuck" wrote in
news:GMpjk.273665$yE1.249046@attbi_s21:

I don't know anybody who swaps their
lift bolts out every few years!


We do now!


Yep........ at least once I will have....... :-)



Well, at least it didnt end up bow first stuck into the bottom in 30' of
water, flood destructing its interior with seawater.

Be very thankful.....to the bolt gods.

Remind me again why we can't use STAINLESS bolts, other than the lift
manufacture saves 12 cents per unit cost??

We also have MONEL bolts if stainless won't work, adding 24 cents per unit
costs to the lift.

Navy brass is too soft.


HK July 29th 08 06:59 PM

Grady White falls off of boat lift - Pics
 
Larry wrote:
"Chuck" wrote in
news:bSHjk.274888$yE1.260010@attbi_s21:

"Larry" wrote in message
...
"Chuck" wrote in
news:GMpjk.273665$yE1.249046@attbi_s21:

I don't know anybody who swaps their
lift bolts out every few years!

We do now!

Yep........ at least once I will have....... :-)



Well, at least it didnt end up bow first stuck into the bottom in 30' of
water, flood destructing its interior with seawater.

Be very thankful.....to the bolt gods.

Remind me again why we can't use STAINLESS bolts, other than the lift
manufacture saves 12 cents per unit cost??

We also have MONEL bolts if stainless won't work, adding 24 cents per unit
costs to the lift.

Navy brass is too soft.



Only an old fart like you (or me) remembers monel.

John H.[_5_] July 29th 08 10:02 PM

Grady White falls off of boat lift - Pics
 
On Tue, 29 Jul 2008 17:50:16 +0000, Larry wrote:

"Chuck" wrote in
news:bSHjk.274888$yE1.260010@attbi_s21:


"Larry" wrote in message
...
"Chuck" wrote in
news:GMpjk.273665$yE1.249046@attbi_s21:

I don't know anybody who swaps their
lift bolts out every few years!


We do now!


Yep........ at least once I will have....... :-)



Well, at least it didnt end up bow first stuck into the bottom in 30' of
water, flood destructing its interior with seawater.

Be very thankful.....to the bolt gods.


It's called Karma. His is good enough to offset metal deterioration.

Eisboch July 30th 08 12:21 AM

Grady White falls off of boat lift - Pics
 

"hk" wrote in message
. ..
Larry wrote:
"Chuck" wrote in
news:bSHjk.274888$yE1.260010@attbi_s21:
"Larry" wrote in message
...
"Chuck" wrote in
news:GMpjk.273665$yE1.249046@attbi_s21:
I don't know anybody who swaps their
lift bolts out every few years!

We do now!

Yep........ at least once I will have....... :-)


Well, at least it didnt end up bow first stuck into the bottom in 30' of
water, flood destructing its interior with seawater.

Be very thankful.....to the bolt gods.

Remind me again why we can't use STAINLESS bolts, other than the lift
manufacture saves 12 cents per unit cost??

We also have MONEL bolts if stainless won't work, adding 24 cents per
unit costs to the lift.

Navy brass is too soft.



Only an old fart like you (or me) remembers monel.


Hey, I use monel staples all the time.

Eisboch



HK July 30th 08 12:36 AM

Grady White falls off of boat lift - Pics
 
Eisboch wrote:
"hk" wrote in message
. ..
Larry wrote:
"Chuck" wrote in
news:bSHjk.274888$yE1.260010@attbi_s21:
"Larry" wrote in message
...
"Chuck" wrote in
news:GMpjk.273665$yE1.249046@attbi_s21:
I don't know anybody who swaps their
lift bolts out every few years!

We do now!

Yep........ at least once I will have....... :-)

Well, at least it didnt end up bow first stuck into the bottom in 30' of
water, flood destructing its interior with seawater.

Be very thankful.....to the bolt gods.

Remind me again why we can't use STAINLESS bolts, other than the lift
manufacture saves 12 cents per unit cost??

We also have MONEL bolts if stainless won't work, adding 24 cents per
unit costs to the lift.

Navy brass is too soft.


Only an old fart like you (or me) remembers monel.


Hey, I use monel staples all the time.

Eisboch




We'll vote you in as an honorary o.f. at the next meeting.

DK July 30th 08 01:00 AM

Grady White falls off of boat lift - Pics
 
wrote:
On Jul 28, 8:15 pm, DK wrote:
John H. wrote:
On Mon, 28 Jul 2008 13:24:54 -0700 (PDT), JimH wrote:
On Jul 28, 4:20 pm, hk wrote:
Chuck wrote:
I know... I only post when I have a problem. This happened two weeks
ago. The bolt on the front outer piling holding the boat lift cradle
pulley sheared right off and the boat went in the drink. Photos of the
boat, the bolts, and some telltale corrosion streaks are stored at the
links below.
http://www.thespaceexplorers.com/cor...olts3.jpg(boat in water)
www.thespaceexplorers.com/corrodedbolts1.jpg(3/4 galv. bolts corroded
away to nothing)
http://www.thespaceexplorers.com/cor...2.jpg(boltrust stains on pulley
housing)
OK. So my question is.......... is there any way to diagnose a
galvanized bolts integrity before it rusts through like this again? I
can't seem to find my portable X-ray machine. I also can't quite
figure out how to do a simple swapout on the other three. I don't know
anybody who swaps their lift bolts out every few years!
Chuck
Since apparently no one was injured, the important questions:
Was the boat damaged? Will your insurance cover any damages to the boat
or the lift?
Maybe you need to check the area for stray electrical currents...and
also change all the bolts and use nuts and bolts you can swap out every
season.
I have seen bolts looking like that taken off a wooden roller coaster
being restored. A friend of mine was helping with the restoration.
In this case constant friction and tension was the problem.
As a side note: Chuck, no offense but I can understand why you posted
the question here and not at your place. ;-)
Your place?

Wow. Warp17 is dumber than I thought. He thinks he's talking to the
guy that binned him?- Hide quoted text -

- Show quoted text -


Great, he even failed at sucking up!!!!


I'm sure he will try to spin it somehow. Maybe WAFA can help him.

DK July 30th 08 01:03 AM

Grady White falls off of boat lift - Pics
 
wrote:
On Tue, 29 Jul 2008 13:59:55 -0400, hk wrote:

Larry wrote:
"Chuck" wrote in
news:bSHjk.274888$yE1.260010@attbi_s21:

"Larry" wrote in message
...
"Chuck" wrote in
news:GMpjk.273665$yE1.249046@attbi_s21:

I don't know anybody who swaps their
lift bolts out every few years!

We do now!

Yep........ at least once I will have....... :-)


Well, at least it didnt end up bow first stuck into the bottom in 30' of
water, flood destructing its interior with seawater.

Be very thankful.....to the bolt gods.

Remind me again why we can't use STAINLESS bolts, other than the lift
manufacture saves 12 cents per unit cost??

We also have MONEL bolts if stainless won't work, adding 24 cents per unit
costs to the lift.

Navy brass is too soft.


Only an old fart like you (or me) remembers monel.


??? Are you for real?



He's going some ass kissing - recruiting the next stooge. Someone tell
WAFA there's no collective bargaining on rec.boats...

Richard Casady July 30th 08 01:50 AM

Grady White falls off of boat lift - Pics
 
On Tue, 29 Jul 2008 19:21:08 -0400, "Eisboch" wrote:


"hk" wrote in message
...
Larry wrote:
"Chuck" wrote in
news:bSHjk.274888$yE1.260010@attbi_s21:
"Larry" wrote in message
...
"Chuck" wrote in
news:GMpjk.273665$yE1.249046@attbi_s21:
I don't know anybody who swaps their
lift bolts out every few years!

We do now!

Yep........ at least once I will have....... :-)


Well, at least it didnt end up bow first stuck into the bottom in 30' of
water, flood destructing its interior with seawater.

Be very thankful.....to the bolt gods.

Remind me again why we can't use STAINLESS bolts, other than the lift
manufacture saves 12 cents per unit cost??

We also have MONEL bolts if stainless won't work, adding 24 cents per
unit costs to the lift.

Navy brass is too soft.



Only an old fart like you (or me) remembers monel.


Hey, I use monel staples all the time.


I use monel five cent coins.

Casady

Richard Casady July 30th 08 02:21 AM

Grady White falls off of boat lift - Pics
 
On Tue, 29 Jul 2008 14:21:44 -0400, wrote:

On Tue, 29 Jul 2008 13:59:55 -0400, hk wrote:

Larry wrote:
"Chuck" wrote in
news:bSHjk.274888$yE1.260010@attbi_s21:

"Larry" wrote in message
...
"Chuck" wrote in
news:GMpjk.273665$yE1.249046@attbi_s21:

I don't know anybody who swaps their
lift bolts out every few years!

We do now!

Yep........ at least once I will have....... :-)



Well, at least it didnt end up bow first stuck into the bottom in 30' of
water, flood destructing its interior with seawater.

Be very thankful.....to the bolt gods.

Remind me again why we can't use STAINLESS bolts, other than the lift
manufacture saves 12 cents per unit cost??

We also have MONEL bolts if stainless won't work, adding 24 cents per unit
costs to the lift.

Navy brass is too soft.



Only an old fart like you (or me) remembers monel.


??? Are you for real?


US five cent coins are monel.

Casady


Richard Casady July 30th 08 09:11 PM

Grady White falls off of boat lift - Pics
 
On Wed, 30 Jul 2008 10:19:02 -0400, Gene Kearns
wrote:

On Wed, 30 Jul 2008 01:21:17 GMT, Richard Casady penned the following
well considered thoughts to the readers of rec.boats:

On Tue, 29 Jul 2008 14:21:44 -0400, wrote:

On Tue, 29 Jul 2008 13:59:55 -0400, hk wrote:

Larry wrote:
"Chuck" wrote in
news:bSHjk.274888$yE1.260010@attbi_s21:

"Larry" wrote in message
...
"Chuck" wrote in
news:GMpjk.273665$yE1.249046@attbi_s21:

I don't know anybody who swaps their
lift bolts out every few years!

We do now!

Yep........ at least once I will have....... :-)



Well, at least it didnt end up bow first stuck into the bottom in 30' of
water, flood destructing its interior with seawater.

Be very thankful.....to the bolt gods.

Remind me again why we can't use STAINLESS bolts, other than the lift
manufacture saves 12 cents per unit cost??

We also have MONEL bolts if stainless won't work, adding 24 cents per unit
costs to the lift.

Navy brass is too soft.



Only an old fart like you (or me) remembers monel.

??? Are you for real?


US five cent coins are monel.

Casady


Nope..... they both contain copper and nickel, but aren't the same
alloy.


Actually there are a number of monels. The common characteristic is
the Monel company. The alloy used in the coins qualifies.

Casady

Calif Bill July 30th 08 11:04 PM

Grady White falls off of boat lift - Pics
 

"Eisboch" wrote in message
...

"hk" wrote in message
. ..
Larry wrote:
"Chuck" wrote in
news:bSHjk.274888$yE1.260010@attbi_s21:
"Larry" wrote in message
...
"Chuck" wrote in
news:GMpjk.273665$yE1.249046@attbi_s21:
I don't know anybody who swaps their
lift bolts out every few years!

We do now!

Yep........ at least once I will have....... :-)


Well, at least it didnt end up bow first stuck into the bottom in 30' of
water, flood destructing its interior with seawater.

Be very thankful.....to the bolt gods.

Remind me again why we can't use STAINLESS bolts, other than the lift
manufacture saves 12 cents per unit cost??

We also have MONEL bolts if stainless won't work, adding 24 cents per
unit costs to the lift.

Navy brass is too soft.



Only an old fart like you (or me) remembers monel.


Hey, I use monel staples all the time.

Eisboch


Last Monel staples I bought at Home Depot were not Monel. Some Ahole had
swapped boxes to save $10.



Calif Bill July 30th 08 11:47 PM

Grady White falls off of boat lift - Pics
 

"Richard Casady" wrote in message
...
On Mon, 28 Jul 2008 17:40:29 -0700, "CalifBill"
wrote:


"Short Wave Sportfishing" wrote in message
. ..
On Mon, 28 Jul 2008 20:14:30 GMT, "Chuck" wrote:

I know... I only post when I have a problem. This happened two weeks
ago.
The bolt on the front outer piling holding the boat lift cradle pulley
sheared right off and the boat went in the drink. Photos of the boat,
the
bolts, and some telltale corrosion streaks are stored at the links
below.

www.thespaceexplorers.com/corrodedbolts3.jpg (boat in water)

www.thespaceexplorers.com/corrodedbolts1.jpg (3/4 galv. bolts corroded
away
to nothing)

www.thespaceexplorers.com/corrodedbolts2.jpg (bolt rust stains on pulley
housing)

OK. So my question is.......... is there any way to diagnose a
galvanized
bolts integrity before it rusts through like this again? I can't seem
to
find my portable X-ray machine. I also can't quite figure out how to
do
a
simple swapout on the other three. I don't know anybody who swaps their
lift bolts out every few years!

I'm probably wrong, but that looks like electrolysis. Which means
that you have some kind of current leakage somewhere - maybe from a
shore charger?

Is your boat isolated from shore side current?


How about adding some zincs?


These are galvanized bolts. Adding zinc to zinc will accomplish
little.

Casady


The zinc on those bolts was long gone.




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