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

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Spark Plug: Service and Repair

Spark Plug R&R:






1. Remove and install high tension leads carefully.

CAUTION: When removing spark plug leads, pull on the boot, not the wire.

2. Remove and install plugs with the proper socket.

CAUTION: Make sure socket fits squarely over plug.

3. Apply anti-seize compound or molybdenum-based lubricant to plug threads before installing.
4. Tighten plugs to correct torque.

Torque: 9.5 - 13.0 ft lb (13 - 17 Nm).