Ignition Timing: Adjustments

Timing Scale:

Distributor Hold-Down:

1. START engine and let it run until the cooling fan has cycled on and off at least once.
2. Turn the engine OFF and disconnect the temperature sensor connector, (temperature sensor is located near the thermostat housing).
3. Connect a suitable timing light to the number one cylinder, (refer to manufacturer's instructions for correct procedures).
4. START the engine, the radiator fan and check engine light should come on. Point the timing light at the timing marks on front crank shaft pulley.
5. If the timing is within specifications; 12°±2° BTDC, no adjustment is necessary. If the timing is outside of specifications loosen the distributor hold down bolt enough to enable the distributor to be turned. Turn the distributor until the timing mark is within specifications and tighten the hold down bolt.
6. Turn the engine OFF, connect the coolant sensor and disconnect the timing light. Erase any fault codes set by the timing procedure.