Originally Posted by koalla
thanks everyone, why i ask is because the boat i'm about to buy has that engine
and hours ..... i don't know the exact model but it is safe to assume the worse of all the volvo penta engines. reading all your replies, i get the impression that 2500 may be a lot of hours ... does any know what sort of signs and symptoms i should be looking for that indicate a repair being in the near future?.... it is the boat i'm looking for but then again 10k is much moolah out of my light weight wallet.
best of wishes
2500 hours may be a lot or it may not be a lot. It really depends on how it has been used and maintained.
I now have 2 Volvo marine
engines sitting in pieces in my dining room. Here is what I would be looking at.
mixer & heat exchanger
. The second engine I just bought for parts
"split" the exhaust
. In addition the joint where the mixing elbow
joins the heat exchanger/exhaust manifold is completely corroded away. In a 24 y/o engine this part has likely not been replaced, usually gets a minimal look even at a top end overhaul
and is very expensive. I just priced the HE and core
pack at around $2,000
The failure is corrosion
related as this is the most "toxic" area of the engine (the exhaust)
When this part failed sea water spewed all over the engine and failed the starter and alternator
The exhaust muffler
should also be evaluated. Mine was in marginal shape and needed replacing about 2 years on. It was almost completely corroded out at the stainless end plates. This was a $500 part.
Other items -
The engine should start easily, blow no to little smoke. You should be wary if you arrive for a sea trial and the engine is already "warmed up." I like to see them cold.
You should run it long enough to get to temperature. You should run it under load. You should run it in reverse.
If you get this far yourself I would pay a mechanic
to do a compression
check. I would pay for an oil filter
, remove the filter and have the mech cut it open and look for metallic debris.
I would have the heat exchanger end plate opened to see if the core
pack is clogged or contaminated.
After that you have done about your best in evaluating the engine.