The Onan was having issues with this stuff they call gasoline again, I think mostly vapor locking as it did before. But the time has come to take the burden of gasoline & all it's inherent problems these days off my back & put in my Yanmar 3TN66, a 16hp 3 cylinder into the Massey. So it will return to it's OE life as a 1655, but better! She'll be a MF1655D when completed.
The funny part was when I went out after lunch to find Dad wrenching on my Massey! It was raining & he was bored. I had told him I'd taken the loader off to swap engines. The Onan was running decent & I had intended to drive it to the milk parlor to blast it clean with hot water, but I can still do it, only have to pull her down there. I hate working on filthy dirty stuff. I took over & got the engine off and the battery & fuel tank trays cut off. I want plenty of room to instal the engine, and whatever is left I can then decide what will or won't go back in that area. I know for sure the fuel tank won't go back in, and there may be room for fashioning a new battery tray, but for a GT size battery sitting sideways. I'll get the 420 amp GT version though.
I think I can leave the hydraulic pump exactly where it is & just mount the engine to align.
Here's the Yanmar 3TN66 that I bought from david (aka BairleaFarm) maybe 2+ years ago. I think John Deere called the Gator it came out of as `18hp, but I converted the 11.3kw figure on it's tag and that makes it a 16hp, which is plenty of power, and way more torque than I had with the 18hp Onan.
Liable to be a few weeks till completed unless it rains a lot.