Specific Gravity of Diesel Fuel VS Motor Oil
The reason for the question is....in the event of an injector not closing properly and letting fuel leak into the cylinder will diesel fuel float on motor oil or is it reverse?
Forum Discussion
If there is a leak into the crankcase it may/could be bad or deteriorating seals in the injector pump(as I understand). When an engine is shut down the pressure at the pump is quite high, and if an injector were open at the point of shut down I suppose the fuel pressure might push the remaining fuel in the line into the cylinder and down past the rings. Any of you diesel mech ever seen this happen? I did start the engine and didn't see any smoke from the exhaust. This is a 2002 engine and is electronic ignition. Will an injector remain open with the ignition switch off?
