Diesel in Oil

CapnDean

New User
It is a Farm Trac 545 - close enough to a Ford 3000 but not a Ford 3000.

Diesel in oil is the problem. Ran through the gamut of tests...
Is an injector stuck open? No, runs too good, no white smoke.
Is there a hole in a piston? No runs too good.
Is the fuel pump allowing fuel to gravity past it? No, No fuel pump, only a hand primer. Hand primer has to allow passage.

Just when I was about to give up and remove the injector pump The parts expert Ron at Sun Downer tractor says to eyeball the thermo start. Thermo what? What the heck is that?

In short it is a 12V heating element attached to a fuel control solenoid and plumbed into a return line. When you turn the key - you briefly energize this apparatus: The idea is that it pees return fuel through a heating element and dumps it into the intake to ease starting in cold weather. Soon as you let off the key it is SUPPOSED to stop flowing. Mine wasn't stopping the flow.... basically returning fuel into the intake in non-heated liquid form.

Whew - fixed with a golf tee until I can get another unit in.
 
If you are still getting fuel in the oil, you probable have a leaking seal in the end of the injector pump. If so. pump will have to come off.
 

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