propeine
15+ Year Contributor
- 170
- 2
- Apr 12, 2006
-
Erie,
Pennsylvania
So my car decided that it wanted to sound like a subaru after my timing belt replacement/BC 272 install. DSMLink was showing wacky numbers and the car sounded more than just "cammed". Decided I'd run a compression test. 180, 178, 178, 28. Well what the hell is up with that? So I do a leakdown test on the suspect cylinder and everything is coming out the exhaust. Must be valves right?
Pulled the head today and sure enough both exhaust valves are bent but...the kicker is all the timing marks lined up before and trust me I checked 100 times and rotated the motor over by hand probably 30 revolutions total. The other thing I don't understand is there isnt a single mark on the piston or valves that indicate they came in contact with one another. Finally its only that one cylinder. Anyone else ever have something like that happen?
Pulled the head today and sure enough both exhaust valves are bent but...the kicker is all the timing marks lined up before and trust me I checked 100 times and rotated the motor over by hand probably 30 revolutions total. The other thing I don't understand is there isnt a single mark on the piston or valves that indicate they came in contact with one another. Finally its only that one cylinder. Anyone else ever have something like that happen?