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Old 01-25-2007 | 12:32 PM
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w8ye
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From: Shelby, OH
Default RE: Four-Stroke Engine Question

Some cams have a dot and some have a line. It usually has a little sludge on it. You may have to wipe around in there with a Q-tip to find it.

Engine piston at top dead center and dot or line on cam aligned with the lifters or cam followers