"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

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.

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.

"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

On Jul 28, 3:14 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

Thanks for posting this, Chuck. I've sent it on to my son who works
with this kind of thing.