Ignition Timing

NOTE: Timing instrument should be connected to number one spark plug wire using a suitable adapter or snap-on connector. Do not puncture spark plug wire or boot to make connection.

Connect tachometer and timing light, then warm engine to normal operating temperature. Disconnect and plug vacuum hose at distributor advance unit.
NOTE: If equipped with 3 connector Dura-Spark module with barometric pressure switch, disconnect switch and connect a jumper wire across Yellow and Black wires in distributor connector. Remove jumper and reconnect after adjustment is completed.
With engine idling at specified RPM, check timing. If within ±2° of specified timing, do not reset. If not, loosen distributor and adjust timing.
On all models, remove test equipment. Reconnect vacuum line at distributor.

Ignition Timing Specifications (Degrees BTDC@RPM)

Application	Man. Trans.	Auto. Trans.
1.61	10@800	10@800
2.3L	6@700	12@700