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 Clearance

Use a feeler gauge to measure the clearance of each valve and record its location. A midrange clearance is the most desirable:
^ Intake: 0.15-0.25 mm (0.006-0.01 inch)
^ Exhaust: 0.300-0.400 mm (0.0118-0.0157 inch)





NOTE: The number on the valve tappet reflects the thickness of the valve tappet. For example, a tappet with the number 3.310 has the thickness of 3.31 mm (0.13 inch).