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
Service 10.223 - 10.234
Inner Diameter
(Finished size)
Standard & Service 6.000 - 6.018
Cylinder Head Valve Guide Hole Diameter Standard 9.960 - 9.978 Millimeter (mm)
Service 10.185 - 10.196 Millimeter (mm)
Interference Fit of Valve Guide Standard & Service 0.027 - 0.059 mm
Stem to Guide Clearance Intake Standard 0.020 - 0.053 mm
Maximum Tolerance 0.08 mm
Exhaust Standard 0.040 - 0.073 mm
Maximum Tolerance 0.1 mm
Valve Deflection Limit Intake Maximum Tolerance 0.24 mm
Exhaust Maximum Tolerance 0.28 mm
Projection Length "L" Standard and Maximum Tolerance 12.6 - 12.8 mm