Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
Yesterday I went down to my boat untied the cover and got inside. I wanted to check my gudgeons and how they were mounted. The bottom one had a metal piece about 6 inches long and 1 inch high with the bolts coming thru and nutted on the back side. Was this a common pratice or did the previous owner do this? I still plan to get the stronger gudgeons from CD this spring.
I believe that, out of the factory, the gudgeons were not thru-bolted and were simply screwed into a bronze backing plate. That is the case for my boat. I am also planning to upgrade to the stronger gudgeons as well as thru-bolting before the boat goes back in the water this year. The decision was made for me when the screws holding the lower gudgeon kept loosening throughout the season causing it to move every time I applied pressure to the tiller. It was kind of scary. Some people have added a third gudgeon midway between the upper and lower.
Panhead, why don't you add your boat year and model to your signature... it can make answering questions easier. There were variations in these boats by year... and even boat to boat.
On my older "Mark I" hull (#158), the lower gudgeon was factory through-bolted but had individual washers rather than a larger backing plate. I suspect a P.O. may have added the plate to yours (?).
The upper gudgeon is screwed into a fiberglassed-in piece of bronze or brass metal with threaded holes. I think this method for attaching the upper gudgeon was pretty standard through most of the C25 production run.
(The upper gudgeon is going to be through-bolted on next haul-out).
You will find, the new gudgeon has larger holes . I used that opportunity to put bigger bolts in. Just something to check before you head down to the boat to install them.
It sounds like your PO installed a backing plate.When I replaced my gudgeons I epoxied an 8"x12"x3/8" piece of plywood to the inside of the transom for the lower gudgeon,a smaller piece to the upper, then over drilled and epoxied all the bolt holes.I believe the new gudgeons will take 5/16" bolts.When you see how thin the transom is you'll know why I did all this.
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.