Ignition Timing

CAUTION: Do not allow tachometer terminal to become grounded. This can damage igniter and/or coil.

Fig 1: Firing Order & Distributor Rotation

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Ignition Timing Marks

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Adjusting Idle Speed

Engine must be at operating temperature. Connect tachometer and timing light to engine. Connect test probe of tachometer to negative (-) terminal of coil, or remove rubber cap and connect probe to service connector on distributor (if equipped). Adjust idle speed to specifications.

IGNITION TIMING (DEGREES BTDC @ RPM)

Application	Timing: Vac. Plugged	Timing: Vac. Connected
Van	8° @ 950	20° @ 950