Home › Forum › Ask A Member › Poppet Valve Up-stop › Re: Poppet Valve Up-stop
December 7, 2017 at 1:21 am
#68333
Clearance between poppet and stop should be 9/64", measured by inserting the shank of a drill bit between them. I don’t know the answer concerning material. My guess is it has to do with wear rate and noise.