Dr. Dyno
NAXJA Forum User
- Location
- Al Ain, UAE
You could have worn piston rings that are causing enough blowby to increase crankcase pressure to the extent that it's also causing a rear main seal leak. Do a compression check on all cylinders to see what it is. If it's below 120psi and it improves significantly when you squirt oil into the cylinders, you definitely have worn rings.
I suggest that you also remove the valve cover and clean it inside thoroughly, particularly the crankcase vents. Also clean the inside of the vent tubes coming off the valve cover and make sure they're patent. That'll at least rule out a blocked CCV system as a possible cause of rear main seal oil leakage.
I suggest that you also remove the valve cover and clean it inside thoroughly, particularly the crankcase vents. Also clean the inside of the vent tubes coming off the valve cover and make sure they're patent. That'll at least rule out a blocked CCV system as a possible cause of rear main seal oil leakage.