See my post #30 , beat you to it .Notice LS debunks your “ Volvo taxi theory “ .Boats have no gears unlike cars , effectively in top and going up hill all day when in the operational rev range .
Trailer nearly zero corrosion as long as you rinse it off / out
I had a pair of the Isuzu 1.7’s in my Sunline. Great little engines. I looked after them, and they looked after me.
Mybe you should read the whole thread and then you might understand that your view is highly selective. LS makes the point very strongly that the engine is perfectly capable of achieving what it set out to do - that is provide high output diesel power for small sports boats over their expected life. The fact that they cannot be rebored is completely irrelevant - that is true of all such engines not just Volvo (see his bit about Yanmar). That method of build is universal in automotive based engines as it is the only way that is possible to meet the performance demanded by buyers AND the emissions requirements by regulators.
No, I am not blind - but it is largely irrelevant to the question which was are the "disposable" - which seems to mean can they be rebuilt or not. The answer is yes they cannot be rebuilt - just like any other automotive engine of the last 20 years or so. Does it matter? No - read LS explanation for why they are made that way and his view that they are entirely acceptable because the type of boats they go into will never get anywhere near the kind of hours where they will be worn out - typically 5000. Boats of this type rarely do more than 100-150 hours a year.
That boat is available with a d4 engine - that might be a better bet. The d4/6/9 engines are completely different engines to the d3, despite sharing the d series prefix.
Likewise gear driven cams , and i suspect beefier oil pumps to cool it internally.
Done - I dont think you can send PM's until you have a certain number of posts.
D = diesel in Volvo speak
