These are the aluminum
bolts there were holding my steering
system together. (O'day 39 1983) Edson
bolts to attach the pedestal
base to the floor of the cockpit
and attach the pulleys (that lead the cables
to the rudder) to the underside of the cockpit
floor. The pedestal
is bonded to the floor so it remains solid even with these bolts removed but the pulleys under the floor just drop down rendering the steering
I discovered them when I tried to remove the pedestal to strip and repaint it. I broke one off by hand. Two were completely corroded through. My guess I had one bolt strong enough to hold the pulley plate on. I broke that with a wrench so I think I had another year or two before it would fail. This corrosion
was inside the floor so the slot head
and the nut on the underside looked fine. You must get a wrench on the nuts to check them.
Here is what I think happened:
The seal under the pedestal was leaking. Not bad enough to notice maybe only if the cockpit filled when the scuppers clogged. This saturated the core
and likely got the core
rotting. I see two deck
cracks so I think the core is bad. I'd say the leak was on the port side of the pedestal since the two weakest bolts and the deck
cracks were on that side.
The aluminum bolts have been sitting in rotted core for years.
The biggest concern is that you can't check this without getting access the the nuts under the floor since the counter sunk slot heads will not turn because the bolts are bonded in.
I understand that Edson
is concerned about dissimilar metals but I would not mind using Stainless and insulating them. What's your thoughts?