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Author Topic:   transom pad for outboards?
peter ortisi posted 05-08-2002 11:43 AM ET (US)   Profile for peter ortisi   Send Email to peter ortisi  
I have a 15' that I am repowering. It was suggested that I put a pad between the transom and the outboard. This would take up
some of the difference between the width of the transom and the mounting space of the outboard. I was also told this would protect the transom. Any opinions?
where2 posted 05-08-2002 12:42 PM ET (US)     Profile for where2  Send Email to where2     
Unless you're planning on running a 25hp engine on that hull, I'd skip the pad and bolt the engine straight to the hull. The way I see it, if the engine is large enough to be bolted on (not just clamped), then the pad is just an invitation for water to get into the transom and rot the wood. Sooner or later, the pad will let water in, where straight bolting to the transom and filling the holes with sealant will provide years of hasslefree, worry free boating. My 15' Sport has been running a 70Hp engine w/o a pad for the last 17 years. No cracks, no damage, no pad to be replaced.

If you have an engine with clamp mounting, let me suggest an aluminum plate to protect the interior of the transom from the clamping force. The plate (screwed to the transom) will distribute the pressure, without any slack that might be possible in a rubber pad. I've seen what 18Hp can do if it's not clamped tight enough to the transom. There's alot of leverage from the prop end of an outboard on those clamps. The tighter, the better.

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