What should clearance be on valve lift Springs?
What should clearance be on valve lift Springs? At full valve lift, your valve springs should have, at the very least, .050” of clearance between the coil. The outer spring, inner spring, and damper spring should all be checked for proper clearance. This is simply accomplished by slipping .050” feeler gauge between the coils with the valve fully open. Can a valvetrain have too much spring pressure? But can a valvetrain ever have too much spring pressure…yes, definitely. A normal flat tappet cam core is limited to about 145-155 pounds seat and 400-pounds open pressure. The simple reason is the...