MF85 Injector Pump

Mattonpatrol

New User
I'm pretty sure my injector pump on my continental HD277 is
leaking diesel into the crankcase. The oil level was at the add
line when I started, and 1.5 hours later when I shut it down it
was half way between add and full, and it seemed pretty runny
for 15w40 oil, which is brand new. I just had the engine apart
to replace the rear main seal.

Is it a manageable job to rebuilt the pump myself, or should I
be taking it into a rebuilder?

Also, are kits even available to rebuild it?
 
Most likely the U-cup seals on the pump driveshaft leak. Not too bad to change. If the bushing the seals run in is scored the bushing will need to be replace. The plastic type governor ring may also be going bad as well.I would change it while the pump is off or at least look at it.
 

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