Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Valve Seat Inspection

Valve Seat Inspection

Valve and Seat Refacing Measurements

NOTE: Refer to the Engine system level for the specification.

NOTE: After grinding valves or valve seats, check valve clearance.

1. Check the valve head and seat.
- Check valve angles.

- Check margin width.

- Be sure margin width is within specification.

2. Inspect for abnormalities on the valve face and seat. Install a new cylinder head assembly if abnormalities are found.