Correction of ignition timing angle (VAZ-21011)

Octane Corrector

When operating a car, sometimes, depending on the quality of the fuel being filled, it becomes necessary to adjust the ignition timing. The ignition timing is adjusted by the octane corrector 3 of the ignition distributor, which allows the ignition timing to be reduced or increased. Signs "+" (advance) and "-" (lag), the marks on the octane corrector scale indicate the direction of its rotation.

1. Adjust the ignition timing on a warm engine. Before adjusting, mark the position of the middle mark of the octane corrector on the cylinder block.

2. When driving on a level road in direct gear at a speed of 50 km/h, sharply press the accelerator pedal. If this causes minor and short-term detonation, then the ignition timing is set correctly.

3. In case of strong detonation (early ignition) loosen nut 1 and turn housing 2 0.5–1 division clockwise (to "–"). If there is no detonation (late ignition) turn body 2 0.5–1 division counterclockwise (to "+").

4. After adjustment, tighten nut 1 and check again for correct ignition timing while driving.