Fuel actuators missing waxy cover

[Rawze]

Ensure your enigne can breath. Ensure the crank case pressure relief tube is not full of crud or partially blocked.

Those engine brake harnesses are notorious for leaking when you have high blo-by and/or high crank case pressures. The o-ring is usually not the issue on them, but the plug itself where the pins go through. I have seen where people will silicone up the plug on the back side (in the head) where the wires come out to stop it from leaking so much.