Question, My old purple cam was put in the box my new cam came in.
I read on the box , warranty void if use of reground lifters.
Your thoughts on why?
Thanks
Because regrinding lifters can easily be done wrong.
The bottom of the lifter MUST be a radius. A half a sphere. And it should measure .0015-.0020 across the face with a dial indicator in a lathe. I’m sure there are better ways to measure that but the lathe is simple, fast and it works.
When it is done wrong you can almost see a point in the center. And while it may measure to the above specs, that near point in the center means it’s not ground to a radius but is ground like a wedge.
Thats a HUGE difference and it matters. I’ve seen more lifters ruined with a regrind than I’ve seen done correctly.
The last set I had done were done through Schneider Cams. And I had the guy on the phone because I had some questions and they aren’t done in house at Schneider.
Those lifters are done correctly and his finish is incredible because he is using a CBN wheel rather than a vitrified abrasive to reface the lifters.
Thats the only place I‘d trust to reface my lifters.