I have a small 12 foot aluminum boat that has a small piece of wood mounted on the transom to clamp the outboard to. It's old and the clamps are starting to crush the wood. So, I'd like to remove it and replace it with a piece of marine-grade plywood...possibly.
The questions is...would starboard be a better material to use or stick to two sheets of plywood?
Other questions: Hypothetically, if the boat has a HP max of 12 hp and I'm running a 9.9hp on it now that's not quite powerful enough and I wanted to bump up to a 15hp (discussions of the illegality aside), what are the physical consequences (my boat has welded seams, would I start tearing the seams, warping/bending the transom, etc...) or would the bump up be not-advised but not necessarily something that'll tear my boat apart.
If I'm replacing the small piece of wood on the transom, is there any way to reinforce the transom to better handle the added power of a 15hp. Should I have a local welder build a triangular brace to go from transom-to-floor? Should I replace the small piece of wood with a piece that covers the entire transom of the boat (thru-bolted with stainless bolts and sealed with 5200).
Surely I'm not the first to attempt this.
Any suggestions (besides sticking to the 9.9hp)?