Roller Lifter's ?

rumblefish360 said

I don't think that is the issue Ramchar. I think he wants to switch to a roller.

Jack, if your wiping out flat tappets, check your lifter bores. Perhaps, the tappets are binding up/not spinning around in the bores like they should. I'm sure you have the matched springs to the cam.

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The first cam I wiped, I was able to trace the cause down to machining that was done. The second one was a mystery and happened last spring after the cam being in for 3 years. It may have been caused by starting the car in cold weather after it had been sitting. I now add a can of Comp Cams break in additive with every oil change. I have the top of the engine off right now to replace an intake valve that had some gaulling (sp?) on the top of the stem due to a rocker going bad and the cam looks perfect. So I will stick with the break in oil additive at each oil change. You are correct that I am exploring the option of going to a roller in my next build.

Jack