Note. Intake valve stem diameter differs from exhaust valve stem diameter. Use intake valves in intake guides and exhaust valves in exhaust guides when measuring valve guide wear.
- To measure valve guide wear, attach dial indicator to cylinder head. Insert valve into guide until valve stem tip is even with top end of guide.
- Lightly push edge of valve head against dial indicator tip. Zero dial indicator. Push valve away from dial indicator, in direction opposite of camshaft axis.
- Maximum allowable deflection is.032" (.8 mm) on intake or exhaust valve. see scheme 94 If deflection does not exceed specification, guide is okay. If deflection exceeds specification, recheck using new valve. If deflection still exceeds specification, replace worn guides.
