New Prop, and this happened

[cancruiser]

I put a new prop on last season and never noticed this but now that I have the boat out of storage I see the following cracks on the transom on the outer fiberglass.

My question, is this cosmetic or structural. The boat is a 88 Bayliner Bass Trophy with a Force 125.

 

[alldodge]

My initial vote is cosmetic, that's on the inner skin which in most cases is not attached directly to the transom. I would take a real close look at the transom on the inside for soft spots

 

[JimS123]

Cosmetic cracks are usually only on the surface. Yours look to be deep. Based only on the pics, my vote is that the transom is shot.

In any event, I doubt it had anything to do with the new prop.

 

[cancruiser]

One ye one ney...lol

The old prop had no life left in it. I could reshape the blades with a couple of fingers. It took forever to plane. The new prop is very punchy and pops the boat into a plane almost instantly. My guess is it more torquey (if thats a word) and might have compromised the old transom. There was some dampness a few years ago but I repaired the source. Hopefully it didnt cause too much damage inside.