Getting Diesel Fuel in Oil

[Kozychris]

I have A M52A2 LDS 465 Multifule I think it is 1962 it seemed to be in very good condition I drove it abought 30 miles runing great but getting diesel in oil and throwing it every where. it sat abought 1 year

 

[TacticalDoc]

head seal? or one of the seals? don't drive it until its fixed.

 

[Chevracer87]

geting dieselfule in oil

Is your FDC bypassed? This is a common problem if it isn't. Try searching the site and you will get a wealth of knowledge on the topic.

 

[swbradley1]

Fixed your title to make it legible and moved to proper forum.

 

[gungearz]

Other then a spelling problem that made me read your thread a few times to comprehend it.. It sounds like you have leaking head gasket... Is there any external leaks evident on the motor..? Have you dowloaded the tm's and did you use the search function for similar issues..? I wouldn't even take a chance running the motor due to possible catastrophic engine failure... Any pictures of the issue...?

 

[doghead]

I doubt it's a head gasket.

This issue has been covered 100's of times. A search should find you all you need to know(search terms, "fuel in oil")

It's either your hydraulic head poppet shaft, HH orings,shut-off slide o ring, FDC, or booster pump seal.

 

[Flyingvan911]

Does your truck have a manifold fuel heater? It could be leaking into the manifold then getting into the oil.

 

[doghead]

The manifold heater issue has been coved before as well. Very, very unlikely that it is the issue(almost impossible).

 

[bigboy44]

I don't know if this is relevant but my Duramax did the same thing and it was a bad injector.

 

[Flyingvan911]

I know but it worked for me.

 

[Kozychris]

Well, the FDC has been bypassed already. I drained almost two 5gallon buckets of oil out of the engine. When I run the engine, it smokes. It smokes black smoke when I am driving down the highway and white smoke when it idles. It smells like diesel fuel. I have not run it all since I saw the diesel fuel in the oil.

 

[sparragh]

Mine was doing the exact thing last month. I bypassed the FDC and now she runs like a top, and even noticed a little extra power too!

 

[ichudov]

What is FDC?

 

[Chevracer87]

What is FDC?

Fuel Density Compensator