RJS
Jedi Warrior
Offline
Hi Guys,
So, accepting any/all theories. My engine runs perfectly except for excessive blow-by (evidenced by crankcase pressurization but, no oil burning). Normally, I'd suspect bad piston rings but, I get great compression (172-175psi across all 4 cylinders), spark plugs are all clean and dry, valves are all in spec and I pull an excellent 20" vacuum on the intake manifold.
By ruling most other things out, I am now suspecting stuck piston rings. But, if that were true, would I still see such good compression?
My engine was rebuilt about 7,500 miles ago. The issue started about 2,000 miles ago.
Go figure...
Bob
So, accepting any/all theories. My engine runs perfectly except for excessive blow-by (evidenced by crankcase pressurization but, no oil burning). Normally, I'd suspect bad piston rings but, I get great compression (172-175psi across all 4 cylinders), spark plugs are all clean and dry, valves are all in spec and I pull an excellent 20" vacuum on the intake manifold.
By ruling most other things out, I am now suspecting stuck piston rings. But, if that were true, would I still see such good compression?
My engine was rebuilt about 7,500 miles ago. The issue started about 2,000 miles ago.
Go figure...
Bob