Operation CHARM: Car repair manuals for everyone.

Valve Seat

Seat Angle 45 Degrees (deg)
Minimum Margin 0.025 in
Seat Runout-Maximum 0.002 Inch (in)
Seat Width-Intake 0.060-0.080 Inch (in)
Seat Width-Exhaust 0.090-0.110 Inch (in)