10 January, 2011

Stanchion Base Repair

Our next project was the ram ball joint of the steering system, but we found another leak. This time, not from one of the portholes, but from one of the stanchion bases of the bow pulpit. This leak went under the radar for some time because it leaked into the forwar head shower. We would see drops of water on the shower bulkhead, and dismiss because the shower is a natural place to see drops of water. We haven't used the shower in a couple of weeks now, so when I saw a drop of water on the bulkhead, I took a peak under wooden cover plate, and found the end of a bolt with a drop of water around it and dampness all around. Don Casey book says to jiggle the stanchion, and if water comes out from the nuts and bolts, the stanchion base needs to be rebedded and resealed.
I took all three nuts and bolts off and found one of the holes had been compromised with water. The tough part, was doing the work with a mirror, since the hardware was tucked up behind a cover plate. Luckily, the fiberglass around the area seems to be in good shape and doesn't give when the stanchion base is moved. Unluckily, I noticed that there are two electrical wires going into the stainless steel tube. There are six stanchion bases in the bow pulpit, and this one happens to have the navigation light going through it! This means I'll have to be extra careful not to damage the wires while I'm cleaning the area in and around the holes, and into the stainless steel tube.
For the portlight repair, we used a sealant with adhesive properties, but since this is a deck fitting, we'll have to use an adhesive with sealant properties. Since I have a tube of Life Caulk, I'm going to do a pilot with this product. if I like it, I'll end up using it for the rest of the deck fittings. What we like about this product, is that it comes in a clear variety, so any gaps or mistakes may not show up so obviously.
When I removed the nuts and bolts, I noticed one of thebolts that I removed was bent. I also noticed the base of the stanchion is bent up in one place. I wonder if this is the result of an accident? An impact or pull from behind or a pull from the front could cause the base to bend up in from and separate in the back.
I ran out of daylight to finish this project, so I left the stanchion base in place and taped it up so no water will go in the holes. I also need to go to Ace Hardware or West Marine and buy new nuts and bolts, since the old ones got banged up during removal.