Hello, any D4 gurus out there?
I have a ~1945 D4 2T series, admittedly a little bit of a fixer upper but got it for a song. It seems to be a strong, well running machine and the previous owner added OROPS and a brush rake.
Except...
When I got it, I didn't realize it but it had a major oil leak. It's coming out of the flywheel case. There's a ~2" threaded hole on the transmission side (as I recall) and there's no plug or anything in it. When I say major, it leaves a continuous trail of oil behind it under some circumstances, which seem to be angle related (i.e. if on an incline up).
I needed to do some work so I kept adding lots of oil, but now I need to fix it. Originally I assumed it was the rear crankshaft bearing.
I have a full set of manuals for this machine, but I thought I read somewhere that it has a common engine/transmission oil system. I can't seem to corroborate that now though, so maybe not.
However, if there is indeed a common system, the leak could be somehow related to the flywheel clutch bearing which it needs to be regularly lubricated. That bearing/seal can apparently be replaced without pulling the engine.
Any thoughts on this? I am leaning toward the crankshaft bearing seal.
Has anyone pulled an engine on one of these? Seems pretty doable. Or can I replace the seal without completely pulling the engine out?
Any advice appreciated.
Thanks!
On a side note, has anyone ever done an electric motor/glow plug upgrade on one of these to get rid of the pony motor? Or maybe drop in some other diesel?
I have a ~1945 D4 2T series, admittedly a little bit of a fixer upper but got it for a song. It seems to be a strong, well running machine and the previous owner added OROPS and a brush rake.
Except...
When I got it, I didn't realize it but it had a major oil leak. It's coming out of the flywheel case. There's a ~2" threaded hole on the transmission side (as I recall) and there's no plug or anything in it. When I say major, it leaves a continuous trail of oil behind it under some circumstances, which seem to be angle related (i.e. if on an incline up).
I needed to do some work so I kept adding lots of oil, but now I need to fix it. Originally I assumed it was the rear crankshaft bearing.
I have a full set of manuals for this machine, but I thought I read somewhere that it has a common engine/transmission oil system. I can't seem to corroborate that now though, so maybe not.
However, if there is indeed a common system, the leak could be somehow related to the flywheel clutch bearing which it needs to be regularly lubricated. That bearing/seal can apparently be replaced without pulling the engine.
Any thoughts on this? I am leaning toward the crankshaft bearing seal.
Has anyone pulled an engine on one of these? Seems pretty doable. Or can I replace the seal without completely pulling the engine out?
Any advice appreciated.
Thanks!
On a side note, has anyone ever done an electric motor/glow plug upgrade on one of these to get rid of the pony motor? Or maybe drop in some other diesel?