Old boat with big motor

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Hello from Iowa,

While looking for another restoration project, I’m currently corresponding with a C-Dory owner in San Francisco about his 22’, 1984 Classic.

The owner, in a phone conversation (yesterday) said that the boat had a crack across the front of the aft “box” transom support (this box would also house the gas tank underneath).

I was also told that this boat has a 2002, 90 Honda 4 stroke.

I restored a 1983 Classic with a 70 Johnson, and some how believe that the Honda 90 is way too much for this vintage boat, both by weight and power, right or wrong?

I’m assuming that the crack is a stress crack, caused by the motor being too heavy for the boat and eventually will show up with transom problems (if they don’t exist already).

This does not sound good to me and I’m going to pass on this one, do you all agree with my diagnosis?

Let me know.

Regards,

Ron Fisher
 
No I do not agree with your analysis.

My 1983 Classic 22' had a 115 Johnson on it from 1983 to 1997.
I then replaced it with a 90 Honda in 1997. It is still on the boat today and my son owns it now. Both set-ups had many hours/miles of use.
No cracks in the transom ever.

The 90 Honda handled the boat better than the Johnson and used half the fuel doing it.

Jack
 
I don't think a honda 90 is too much for the boat. I have no idea what caused a crack like that, and as you know there are multiple scenarios that could cause it to do that. My 1993 has twin 45s and no real cracks. The boats has around 2 thousand hours on it and I don't take it to the lake if you catch my drift.....The twins are even heavier yet than the BF 90. I have to agree with Jack, you have a crack for sure, but the weight of the outboard did not cause it. Something structural is giving away and probably from water intrusion. But really, who knows.....
 
The way it was described (have requested photos) the crack opens or moves around when under way and in rough water.

I’ll get more information and photos.

I fix surface cracks, but this sounded much more worrisome.

Regards,

Ron Fisher
 
That looks like a CD-19 with an add-on rear bulkhead for weather protection. (Especially advisable in Alaska!)

Might have well just bought a 22 Cruiser or one of the CD-22 Anglers with a bulkhead from the beginning. Easier to re-sell, too!

Just my opinion, YMMV! :lol:

Joe. :teeth :thup
 
The boat with the 175 seems to have either a transom re-enforcement, or a very narrow jack plate?--a lot of HP for any of the C Dorys under 22 feet! But it could have had the transom rebuilt--or re-enforced. It would be possible to do that and run that HP safely--as far as the transom goes--just that the boat does not handle all that well at the higher speeds.
 
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