870 Missing & fuel in oil

JHH · Aug 13, 2020

870 has been making a little oil for a while. Yesterday it started missing. When we crack the injector lines #1 has air bubbles with the fuel that leaks. Replaced filters, any ideas?

casecollectorsc · Aug 13, 2020

Take the cover off the left side of the injection pump...long one with 2 bolts. Pump up the hand pump till it won't move anymore and look for
fuel leaking past a plunger.

Dieseltech · Aug 13, 2020

If that injector is stuck open, engine compression will blow backwards through the injector and will show as air with the fitting loose. Try removing the line to that
injector and place it away from injector inlet. Now crank engine with fuel stop off, there should be NO air come out the injector inlet, if there is that injector is
history..

870 Missing & fuel in oil

JHH

Member

casecollectorsc

Well-known Member

Dieseltech

Well-known Member

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