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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Ignition Timing: Adjustments

Adjusting Ignition Timing

1. Run engine warm (oil temperature about 90°C).

2. Connect engine tester.




3. Pull off vacuum hose.




4. Connect ignition stroboscope lamp.
25° mark on pulley should be opposite notch on fan housing at 4000 rpm.
Loosen and turn distributor to correct ignition timing.

5. Connect vacuum hose.