Refacing Valves and Valve Seats

1. The intake and exhaust valve seats and valve face have a 45 and a 45 1/2 degree angles.
2. Inspect the remaining margin after the valves are refaced. Intake valves with less than 1.2 mm (3/64 inch) margin and Exhaust valves with less than 0.9 mm (1/32 inch) margin should be discarded.

NOTE: When refacing valves you should also reface valve seats. Service and Repair