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Old 12-25-2025, 03:54 PM
Frank Reiner Frank Reiner is offline
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Join Date: Feb 2011
Location: Modesto CA
Posts: 4,451
Quote:
Originally Posted by lsmalley View Post
So when I lined up the crank to TDC, the cam was maybe 2-3mm behind the TDC mark on the head, so I removed the chain from the cam and turned the cam only to line up TDC, then I put the chain back on.
Quote:
Originally Posted by lsmalley View Post
What I did was manually advance the camshaft a few degrees and verified that there was no interference between the pistons and intake/exhaust valves.
It would appear that in fact you have advanced the camshaft by one tooth of the camshaft sprocket. If the cam sprocket has 40 teeth the crankshaft angle (CA) at which the camshaft is timed has been advanced by 18 degrees. If the cam sprocket has 36 teeth the advance is 20 degrees.
That there is no valve-to-piston interference is testimony to how wimpy those cams are in the first place!
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