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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Timing Components: Service Precautions

PISTON - VALVE CONTACT
If the timing belt is disengaged, having the crankshaft pulley at the wrong angle or turning either the crankshaft or camshaft can cause the piston head and valve head to come into contact with each other, causing damage.

Always set the pulleys at the correct angle, refer to timing belt replacement procedures for information.