I am having trouble with my outboard mounting plate (transom) and can’t find any reference to it on the forum; so seeking advice.

I replaced the mounting plate last year with marine grade ply, varnished etc. All worked fine to start but it now seems to have warped badly in two different directions - at the top and bottom. Hence the outboard ‘rattles’ resulting in a horrible noise, which stops when I hold the outboard steady.

I need therefore to replace the plate but before I do so, I wondered what other materials might have been used. Any ideas would be appreciated.

Many thanks

John

235/07 Diamond

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I replaced the plywood one on my 21 with one I made from 30mm Perspex. It probably cost a lot more than plywood but I happen to keep a stock of 30mm for making underwater camera lenses so no pain at the time! Looks good too. Since the market for underwater camera lenses seems to have recessed a bit lately I have some stock available at cost (£400/square metre)

Geoff ex P21/30 Cygnus

Has anyone used recycled plastic, such as decking, In a Marine environment it looks as if it may be very durable.

David

Thanks for the info,

The boatyard suggests that rather than using varnish on the ply edges, you use an epoxy/fibreglass resin. Seals better and also provides some additional strength.

I have a piece of marine ply, so will give it a go

Regards

John

235/07 Diamond

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