posted 03-23-2001 08:35 AM ET (US)
Transom integrity of a boat that has rot is very hard to judge, without multiple exploratory drillings. Only the fiberglass shell is holding the torque of the motor to the boat, not any wood substructure. Naturally there is more stree while underway, in rough weather vs. idling or just sitting at mooring. I've seen boats last for decades like this (your's may be in this catagory) and I've seen instances where on the transom fell off on a sharp turn (though not off of a Whaler....but there ARE limits).
I'd consider the following logic:
Is the boat of sentemental value, i.e. in the family, passed down, etc.?
Is it in good enough shape to restore?
Am I willing to restore something that I probably will not get my money out of? (I know that flys in the face of logic, but we're talking Whalers here, and BTDT, as most of the forum members can also attest to!)
If most or all of the answers are YES, then I'd recommend taking it to three different fiberglass shops in your area, and get quotes on costs, and see samples of their finished repairs. I'd lean toward a full transom replacement vs a small section repair, depending on what the drill samples show.
If you get it done, make sure that the engine is mounted properly. This is where most leakage develops in older boats, from the bedding compound breaking down.
I spent an additional $3-3800 on replacing a transom on my '73 21' Outrage. That was from a very high quality repair shop in the midwest.
Good luck! Best - Don