Operation CHARM: Car repair manuals for everyone.

Ignition Timing: Adjustments

PREPARATION

1. Check engine condition (spark plugs, leaks in hoses, etc.).
2. Turn all accessories "OFF."
3. Warm engine to operating temperature.
4. Connect a tachometer and timing light to engine.

ADJUSTMENT

Fig. 27 Test Connector:






1. Ground test connector (Green: 1-pin) with a jumper wire.
2. Check that idle speed is within specification. If not, correct as needed.

650 ± 20 rpm in "P" range

Fig. 30 Timing Mark:






3. Check that timing mark on crankshaft pulley and mark on timing belt cover are aligned to specification:

15° ± 1° BTDC

Fig. 31 Distributor Adjustment:






4. If timing is not within specification, loosen distributor lock bolt and rotate distributor housing to adjust.
5. Tighten distributor lock bolt to 14 - 18 ft lb (19 - 25 Nm).
6. After adjustment, disconnect jumper wire from test connector.
7. While aiming timing light at marks, increase engine speed and check that ignition timing advances.