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.