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

Valve Guide Outer Diameter Standard 10.023 - 10.034 Millimeter (mm)
Service 10.223 - 10.234 Millimeter (mm)
Inner Diameter
(Finished Size)
6.000 - 6.018 Millimeter (mm)
Cylinder Head Valve Guide Hole Diameter Standard 9.975 - 9.996 mm
Service 10.175 - 10.196 mm
Interference Fit of Valve Guide 0.027 - 0.059 mm
Stem To Guide Clearance Intake-Standard 0.020 - 0.053 mm
Intake-Maximum Tolerance 0.08 mm
Exhaust-Standard 0.040 - 0.073 mm
Exhaust-Maximum Tolerance 0.1 mm
Valve Deflection Limit 0.2 mm
Projection Length "L" 14.0 - 14.2 Millimeter (mm)