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)

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Valve Guide

Stem-to-Guide Clearance (wobble method):
Intake Valve
Standard (New) 0.04 - 0.10 mm (0.002 - 0.004 inch)
Service Limit 0.16 mm (0.006 inch)
Exhaust Valve
Standard (New) 0.10 - 0.16 mm (0.004 - 0.006 inch)
Service Limit 0.22 mm (0.009 inch)

Stem-to-Guide Clearance (Valve Guide I.D. minus Valve Stem O.D. method)
Intake valve
Standard (New) 0.02 - 0.05 mm (0.001 - 0.002 inch)
Service Limit 0.08 mm (0.003 inch)
Exhaust Valve
Standard (New) 0.05 - 0.08 mm (0.002 - 0.003 inch)
Service Limit 0.11 mm (0.004 inch)

Valve Guide Installed Height:
Intake 15.75 - 16.25 mm (0.620 - 0.640 inch)
Exhaust 15.75 - 16.25 mm (0.620 - 0.640 inch)