Valve clearence

T.Hanson · Post by **T.Hanson** » Thu Aug 28, 2014 11:17 am

What are the thoughts, pro's, cons between .012 and .010 again ?

Stock factory spec being .012, is .010 for tired engines, noise or a sneaky performance trick ?

Or maybe just baloney.

Mike W. · Post by **Mike W.** » Thu Aug 28, 2014 9:42 pm

I think factory spec was .010 to .012. Later cars like E28s used .012-.014. I usually use .010 trying to trick myself into thinking I'm getting another .001HP, but I think having them all the same is the most important part. That and making sure the banjo bolts are tight so they're getting oil.

T.Hanson · Post by **T.Hanson** » Thu Aug 28, 2014 10:37 pm

Thank you.

Lord knows I don't want my banjo falling off, oil not flying everywhere. By chance, if there are brake drums and horns, anything else ?

You know, like a tuba gasket or saxophone filter ?

Lenny D. · Post by **Lenny D.** » Wed Sep 03, 2014 2:23 am

I usually use .010 trying to trick myself into thinking I'm getting another .001HP, but I think having them all the same is the most important part.

+1 on having them even.

I try to trick myself into believing I get a smoother idle with what I call a 'tight .012' where the feeler won't pass. Probably more like a 'loose .011'.