I have a 93 Chevy K3500 dually crewcab with a 6.5 turbo diesel in it. I have a problem of getting fuel in the crankcase. I have tried to reseach the problem and all I have found is bad injectors. I have replaced the injectors and still get fuel in the crankcase. The truck runs great with no real noticable miss or lack of power. Does anyone have any sugestions on what direction I need to try now.

 

Injection pump leaking into crank case

 

can the mechanical injestor pump leak into the crankcase?

 

if the shaft seal is leaking it can.