Re: best repair option for my 87 bayliner transom stress cracks
Just a quick question SSLouiS. Is that motor rated for that boat? You never stated what model it was.
Get a pro to take some core samples of the transom before you rip and tear. I think it's around a 100 bucks
All you need to do to check for rot is measure the transom thickness and set a drill stop for about half that thickness, then drill holes into the transom wood in different locations and heights. (do it from the inside if you can and check extra well near any mounting points)
The shavings that come out should look like clean, dry wood shavings and you should feel solid wood once you get past the first glass skin. If the shavings are black or wet or the drill goes straight in and never hits wood then it's rotten or on it's way out.
If there is no rot or wet wood you will need to fill the holes you drilled using thickened resin (PB)
For the cap, take a look at my thread, on the first page there's a picture showing how I've cut the cap it should give you a better idea of what and where the cap is.
And have a good read of the hull extension thread, it's got everything you'll ever need to know.