Fuel in oil

[[email protected]]

Yes I have a d-239 544 international and I'm getting fuel in my oil. So I changed the front lip seal on Bosch injector pump.(BC I read on this site its most likely was that) but changed seal ran for 20 minutes and crankcase is full of fuel again.... Any other suggestions?

 

[FBH44]

No, other than they don't advise you to use your email address for an a YT name, it is too easy for you to get compromised.

 

[Dieseltech]

How loose is the drive shaft in the pump housing? If very loose it won't stay centered for the seal to hold. Bosch now has replaceable bushings for the housing now that before were not replaceable. Pump needs to be apart as the special reamer/plate is used from the rear to keep the bore straight. Just did the same repair on a VW pump housing that has the same 17 MM shaft size. 20 MM replacement bushings are available to for other VE pumps like used on Cummins.

 

[[email protected]]

It seemed tight... I just don't know where to look or start to look for the problem BC it doesn't blow smoke or raw fuel outta exhaust. It leaks fuel into crankcase just sitting not even running

 

[Phil Tibbetts]

If it has an engine driven fuel pump for the diesel it may be leaking through that.
I've seen a few tractors that have had the fuel pump replaced with an electric fuel pump for that reason.

 

[Dieseltech]

Did you use the late Bosch brown seal, and is the housing seal bore nicked/damaged in any way?

 

[Dieseltech]

No mechanical fuel pump used on that model, does not need a feed pump.

 

[[email protected]]

Late brown Bosch seal? I'm not sure why?

 

[[email protected]]

Late Bosch brown seal?

 

[MAH]

I have had the same problem not long ago on a 454. After 3 lip seals and a rebuilt pump still had the problem earlier this summer. I took to CaseIH dealer and they found that return line back to tank was completely plugged. I decided to just go ahead and replace line. I can say after about a 100 hours of use now since the fix I have had no problems.