mine is finished ...it just died ....looking for a decent replacement ...reasonable hours good condition for the record this is a 2 cyl, 25 hp from a 1974 ...I beleive all 25 hp Volvo till mid 80's are the same block..other minor changes ,,,alternator ....but they fit and work.
any help would be appreciated
cheers
For what it's worth, our last boat had a 1975 MD2B. That died. I searched and found a used one locally, for 500. It was an easy in and out, which I did myself with the help of a small back hoe.
A new repower - cost aside - would have been a huge project in comparison (nearly everything related, would require replacement or re-configuration).
I'd say it was an 'average' used MD2B. It was reliable and slowish to start(as was the original, always). I was happy with it. It's probably still running 20 years later (I've lost track of the boat).
That was 20 years ago, The cost of a re-power would have equalled or exceeded the value of the boat. We used the boat with the replacement MD2B for a few years and then sold the boat for a little below the average value of that model. Had we installed new, I doubt we would have recouped more than 20% of the cost of a new repower. Today I think we'd be lucky to recoup 10% as the cost of marine labor/parts has rocketed and the value of used boats has plummeted.
When the engine in our present boat gave up the ghost I did the same thing but was lucky to find a replacement that runs like new.
It's a tough choice and depends completely upon finding a matching replacement you're confident in. In my opinion, the most important thing in an older boat at resale time is that it have a reliable, clean, well maintained and smooth running engine. The same condition sister ship with a new engine will likely sell first, but not for much more $.