Engine Knock
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Joined: Dec 2005
Posts: 19,997
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From: poway
I’ll start from the beginning early summer I replaced everything in the cam chest with all screaming eagle parts 203 cams rode all summer no issues this winter I did the 95 inch jugs and pistons that’s when the noise started ! I replaced the lifters before the tear down once motor got hot noise came back now I’m back to square one cam chest out bike completely tore down! I see no damage anywhere except the scoring in cylinders and ring gaps lining up not sure where to go from here
It's getting harder to figure out what's wrong. The sound sounded mechanical but it also sounds kind of wheezy. With the domes could the pistons be hitting the combustion chamber? Look for small marks at the edge of the camber dome.
You say it didn't make the noise when cold?
Does the motor have an newer cam plate?
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