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

Ignition Timing: Adjustments




1. Place transmission in Neutral or Park with A/C in off position.
2. Connect an inductive timing light.
3. Disconnect the single wire in-line spout connector or remove the shorting bar from the double wire spout connector.
4. Start engine and allow to reach operating temperature. With engine at timing rpm, in check or adjust initial timing to specification.
5. Reconnect single wire in-line spout connector or reinstall the shorting bar on the double wire spout connector. Check timing advance to verify distributor is advancing beyond the initial setting. If it is not, refer to QUICK TEST COMPUTERIZED ENGINE CONTROLS
6. Remove test instruments.