Oil & Fuel MF 180

[cdog21]

I have a 68 Massey 180. My engine oil keeps overfilling as I run the tractor, and in a fairly short time.
Anybody run in to this problem before or have the solution ?

 

[DJ54]

Check to see if your engine oil smells like diesel fuel. Sounds like the diaphragm is out of the fuel lift pump. When the diaphragm goes bad, it will leak fuel directly into the crankcase.

It's an easy fix, lift pump is external. Remove a couple of lines, a couple of bolts, clean the mating surface. Install new pump with gasket. You may need to purge the line of air, from the lift pump, to the first connection beyond the lift pump.

IIRC, I found an aftermarket pump for around $35.00 plus shipping.

 

[Dieseltech]

If the supply pump does not repair the leak the injection pump may need resealed also. I've repaired several that were leaking at the drive hub, allowing fuel into the oil also..