Taught myself a trick when I was working on the cam end play.
Even though the Canton cover is rated for a cam button and is advertised as strong enough, it still will flex a little when I had the micrometer in the lifter valley through to the inside of the upper sprocket and was hard to tell between when the plate would start flexing and the cam touched it, especially with the amount of force you can put on it when prying forward on the side of the cam lobe.
I thought, well use your ears instead or your eyes, Chad. I got my dead blow hammer and just “tunked “ on the cover. When moving the cam forward, I listened to the tone change. “Pung Pung peng peng ping ping ping!” Then I measured from when the tone “just started “ to change to the end of the rearward play. Then I ended up with about three thousandths. If it’s a little tight I’m not too worried about it, the fancy timing set has a Torrington bearing on the thrust face anyway.
I recently read a thread on an older forum and a guy posited that the cam movement issue is a fallacy since the oil pump drag is constantly pulling backward on the cam anyway. Still, I’m not ballsy enough to go without one but I think he might have been onto something. Food for thought anyway.
