8 3 Cummins Injection Pump Oil Leak

Fc 329 and fc 268 typical with shutdown.

8 3 cummins injection pump oil leak. High presure pump seal or cracked case leaking into crank case. Cummins power harness corrosion fix. The oil appears to be black even though i just had oil. Injectors tested good no leak down.

He plugged the hole with some rtv sealant. I have a 1998 freightliner fl70 with a cummins 8 3 210hp isc mechanical fuel pump it doesn t burn oil and has had a small oil leak from where the primer pump is attached to the block since i bought read more. Discovered the leaking just after we returned from a 100 mile trip today. The underside of the 24 valve cummins is covered in oil splatter from an oil leak somewhere.

My question is could the pump seal leak back into the oil pan. Engine shuts down intermittently. It actually makes a puddle in my driveway. I m not sure if its coming from the front main.

Fc 115 or fc 121 engine position engine speed circuit failure. I had a diesel mechanic work on it and he said there was a weep hole under the injector lines that he had never seen before. He said the engine runs exceptionally good so the pump has to. Not sure what the part is but i believe it is an oil pumping unit.

Ok i dont even know why this is on youtube a bit of an afterthought but i needed to make a quick video showing the locations of the various linkages fuel. We own an ottawa 1992 yard. Is there any test i can do in my shop or is it a r. My latest issue is an oil leak underneath towards the end of the engine.

The leak was very small from the weep hole. Fuel leak from cummins isx as you turn key on. Caps pump has an oil leak. I have a 8 3 cummins dumping major fuel into oil.

High school or ged. Has anyone ever experienced this type of fuel leak. Freightliner service bulletin 54 92.