That question about 1300 hours is interesting. That seems like a lot, almost 45 hours a year. But if you averaged 50 mph in your 4-banger Ford that would only be 65000 miles. Hopefully our Yanmars are a lot stronger than the Ford engine.
Engine help
- Thread starter rblevens
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1300 hours on a yanmar in these years is not what I call old !!! These engines are build like tanks. Met a guy last year who had put 8000 hours on his before overhall, and was now at 10k hours. They have some issues (water pump, starter), but since most where built to be raw water cooled and they ended up being fresh water cooled (heat exchanger) they will support a lot of abuse.
Easy way to know if you have a 2 cyl or a 3 cyl, check on top of the engine, there should be a spring loaded lever (decompression lever), if that lever connect in 3 places on the engine, it's a 3 cyl, if it connects in two places, it's a 2 cyl. The other way is to look for the injectors. They can be located by following the steel hose that looks like a brake hose on top of the engine. Where the hose is screwed (banjo bolt setup) you will find an injector underneath. Again 2=2cyl, 3=3cyl.
If you have a 3qm30 (3cyl) send me a pm with your email, I'll send you a .pdf that will be very helpfull.
Easy way to know if you have a 2 cyl or a 3 cyl, check on top of the engine, there should be a spring loaded lever (decompression lever), if that lever connect in 3 places on the engine, it's a 3 cyl, if it connects in two places, it's a 2 cyl. The other way is to look for the injectors. They can be located by following the steel hose that looks like a brake hose on top of the engine. Where the hose is screwed (banjo bolt setup) you will find an injector underneath. Again 2=2cyl, 3=3cyl.
If you have a 3qm30 (3cyl) send me a pm with your email, I'll send you a .pdf that will be very helpfull.
Agree fully with Mathurin2. But also, as referenced in a thread a few weeks ago, find your engine nameplate ... then you will know exactly your engine model.
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