Operation CHARM: Car repair manuals for everyone.
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 Width




Valve Seat Width

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

1. Measure the valve seat width. If necessary, grind the valve seat to specification.
- Measure the intake valve seat width.

- Measure the exhaust valve seat width.

- Recheck the valve spring installed length after the seats have been ground, and shim the valve springs as necessary to achieve the correct installed spring length.