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 spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Valve, Intake/Exhaust

Valve System Lifter Hydraulic Roller
Rocker Arm Ratio 1.66:1
Face Angle 46°
Seat Angle 45°
Minimum Margin 0.025 in
Seat Runout-Maximum 0.002 in
Seat Width-Intake 0.060-0.080 in
Seat Width-Exhaust 0.090-0.110 in
Stem Height All 1.93-1.975 in
Stem Clearance-Intake 0.0012-0.0028 in
Stem Clearance-Exhaust 0.0014-0.0029 in