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.

"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

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