My 83 300D Turbo diesel has a high crank case pressure. There is a lot
of crankcase pressure causing the oily mess in the air intake and a
very nasty driveway.
I am pretty sure the cause is one of the following:
1. Worn piston rings and/or cylinder walls?
2. Worn valve guides and/or valve seals?
3. Vacuum pump venting into crankcase?
I would like to think that 1 and 2 are ruled out because:
-Car starts very easily and quickly
-No smoke on startup or heavy acceleration
-Car's performance is excellent
-Maintenance Records show reg oil changes up to 217K... Car now has
Can someone tell me the typical symptoms of the vacuum pump venting
into crankcase? How can I determine if this is the culprit? (I don't
have compression testing capabilities to dertermine the state of the
rings, cylinders, valve seals, etc...)
The breather to the air filter is not clogged. The oil fill cap leaks.
It also leaks around the dipstick.
I am very baffled. Can somebody shed some light on this?