I am trying to finish my Alba big bore and cam installation. I’m having issues with the timing. It’s like there is too much slack in my timing chain. When I get everything lined up then remove the cam holding tool the manual says to rotate the engine and make sure everything lines up again. At this point in the installation the chain isn’t tight enough and it skips teeth on the cam gears when I rotate the engine. The only way I can get it to stay put is to install the timing chain tensioner at this point prior to rotating the engine. Problem is the manual doesn’t say to install the tensioner until after this point. Am I missing something or is my timing chain stretched?

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