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Old 08-15-2003, 01:05 AM
sms sms is offline
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Join Date: Dec 2001
Location: Hartford
Posts: 134
Help! Valve/piston Interference after guide rail job.

Tonight I finished replacing the upper timing chain guide rails as well as the tensioner. When I removed the cam sprockets I was very careful to bind the chain to the sprocket. When I was about to put the passenger sprocket back, I noticed that the mark that aligns the cam was off about 10 deg. Since it was aligned before I rotated the cam back to where the notch lines up with the mark. I then put the sprocket back on the cam. I then wanted to hand rotate the crank a bit to see if everything was ok. I then discovered that the valve was hitting the piston. How did I go wrong and what can I do about it?


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