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 Guide

Cylinder Head Warpage Limit 0.002 inches
Cylinder Head Minimum Thickness 5.589 inches
Valve Guides:
Standard Inside Diameter 0.217-0.218 inches
Stem To Guide Clearance:
Intake 0.001-0.0022 inches
Exhaust 0.002-0.003 inches

Valve Seats:
Seat Angle, Degrees 45
Seat Width:
Intake 0.049-0.061 inches
Exhaust 0.049-0.061 inches