TSRM/MK3 Supra/Repair Manual
Repair ManualWiring Diagrams
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IG/Ignition System20 / 26
p.021
IGNITION SYSTEM — Distributor (7M-GE) — MK3 Supra Ignition System, page 20
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IG-20 IGNITION SYSTEM — Distributor (7M-GE) 8. ADJUST IGNITION TIMING (a) Using SST, connect terminals TF1 and E1 of the check connector. SST 09843-18020 (b) Check the idle speed. Idle speed: 7M-GE 700 rpm 7M-GTE 650 rpm (c) Using a timing light, slowly turn the distributor (7M-GE) or cam position sensor (7M-GTE) until the timing mark on the crankshaft pulley is aligned with the 10° mark. Tighten the distributor bolt and recheck the ignition timing. Ignition timing: 10° BTDC @ idle [w/ Terminals TF1 and E1 connected and Transmission in "N" range] Torque: 140 kg·cm (10 ft·lb, 14 N·m) (d) Remove SST. SST 09843-18020 9. FURTHER CHECK IGNITION TIMING Check the ignition timing advance. Ignition timing: 7M-GE 9 — 10° BTDC @ idle 7M-GTE More than 12° BTDC @ idle 10. DISCONNECT TACHOMETER AND TIMING LIGHT FROM ENGINE