1992 Toyota Truck Pickup Ignition Timing Adjustments

IGNITION TIMING: 1. Start engine and allow to reach normal operating temperature. 2. Connect a tachometer test probe to terminal IG of the check connector, Fig. 211 NOTE: Never let the tachometer lead touch ground as this could cause damage to the igniter and/or coil. Be sure to check that your tachometer is compatible with this ignition system. Consult the operating manual for your instrument. 3. Using a service wire, connect terminals T and E1 of the check connector. 4. Check idle speed. Idle Speed: 800 rpm 5. Using a timing light, verify that the timing mark on the timing cover is aligned with the mark on the crankshaft pulley,Fig. 223 Ignition Timing: 10°BTDC at idle 6. Tighten the distributor bolt and recheck the ignition timing. 7. Remove service wire. 8. Check idle advance timing with service wire removed. Ignition Timing: 8°BTDC at idle 9. Check idle speed and adjust if necessary, COMPUTERIZED ENGINE CONTROLS. 10. Disconnect tachometer and timing light from engine.
Timing Belt Removal
1. Remove radiator fan upper and lower shrouds. 2. Remove power steering pump drive belt and pump. 3. Disconnect No. 2 and No. 3 air hoses from air pipe. 4. Remove air conditioning compressor drive belt, if equipped. 5. Remove alternator drive belt, cooling fan, belt guide and fan pulley. 6. Remove No. 2 timing belt cover. 7. Place No. 1 cylinder at TDC of compression stroke by turning the crankshaft pulley and aligning pulley groove with the ``0'' mark on the No. 1 timing belt cover. Ensure alignment marks on the camshaft timing sprockets and the No. 3 timing belt cover are correctly aligned, Fig. 6. 8. If not, turn the crankshaft pulley one complete revolution.

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