Transom Problem

J

Jack in Alaska

New member
First.......This is in no way a manufacturing quality problem but caused by stupid. I write this only as a FYI.

Our friends have a 22' Classic C-dory exactly like ours, same year 1983.

Recently he noticed that his 100 hp. Yamaha was doing too much flexing while underway. Upon inspection the top of the transom fiberglass was found to be cracked open for about 6". It was caused when the motor was installed 5 years ago and was tightened to much crushing the top of the transom and causing the crack. It allowed water into the transom and over a period of time the wood rotted and lost all strength.
I am not all that convinced that the motor tightness could crush a solid transom so maybe it happened earlier and the motor just amplified it.
The motor is off, transom top cut loose and it will be rebuilt/fiberglassed as needed.
It is right in the middle of our king salmon season and they are losing out this year.
Check any openings into your fiberglass to make sure they are sealed up tight and look for and repair quickly any cracks etc. found in theglass.
 
i just baught an 81 classic last month and it had the same problem, caused by the exact same thing, the guy also had the motor mounted right on top of the transom so im sure that contributed to the crack, he also had not sealed his kicker bracket holes so on the port side it was rotten all the way to the end, while you have your transom ripped open be sure to check near all your holes in it, so you can replace that at the same time, i cut the core away until it was solid, and then another three inches past that, just to be sure there was no rot left, in the end, i replaced probly 75% of the back of the boat, and the transom box, there are photos in my album of the project, more to come, when i take the time to put them on...
 
kevin, I pm you a few weeks ago about tank gages I have layig around. if you need them email me. I know that a lot of new folks to the site dont know about p.m.s
 
My friend elected to dig out the rotten wood about 2' wide and is below the top motor holes. Then it was filled with a 2 part epoxy without any wood replaced in the transom, just epoxy. Then the transom cap will be re-glassed onto the transom.

That just doesn't look too solid to me. Shouldn't the wood be replaced 1st then epoxy the wood in?????
He is going to sandwich the transom with 1/4" aluminum plate when the motor is replaced.
 
Hi Folks,

This is interesting in that I had the same problem on my 1983 Classic when I purchased it used. When I repowered the boat with a 75 4 stroke Yamaha, I had the transon rebuilt. Everything is working now.

Fred
 
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