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Joe K · 03-09-2020, 08:10 AM

Its most common to replace BOTH gears together. That way there is no question that both should be at 0.000 oversize.

Should you decide to "recycle" a crank gear, buy each oversize available and try the one starting with smallest for "least free play." Be sure to run it all the way around lest one gear or the other be a little off center and get to a rub spot. Usually this is the cam gear. In fiber/composite they're none too centered and the two pin mount/clamp collar is not conducive to centralization.

And - if you do have a little "rub" - with the fiber it will wear down quickly. And - you likely have 0.002 "slop" in your cam bearing anyway.

This is one of those if everything in the engine is not brought back to "spec" - then you're kind of into "trial fit & error" anyway.

Joe K

03-09-2020, 08:10 AM	#4
Joe K Senior Member Join Date: Jul 2010 Location: Cow Hampshire Posts: 4,188	Re: Cam Gear Its most common to replace BOTH gears together. That way there is no question that both should be at 0.000 oversize. Should you decide to "recycle" a crank gear, buy each oversize available and try the one starting with smallest for "least free play." Be sure to run it all the way around lest one gear or the other be a little off center and get to a rub spot. Usually this is the cam gear. In fiber/composite they're none too centered and the two pin mount/clamp collar is not conducive to centralization. And - if you do have a little "rub" - with the fiber it will wear down quickly. And - you likely have 0.002 "slop" in your cam bearing anyway. This is one of those if everything in the engine is not brought back to "spec" - then you're kind of into "trial fit & error" anyway. Joe K __________________ Shudda kept the horse.