LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1984 >> Forward Control 6.2 J, Standard >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System - HEI-Est (CALIF) >> Overhaul >> Disassembly
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Ignition System - HEI-Est (CALIF): Overhaul: Disassembly

  1. Remove coil connector and disconnect 4-wire EST connector. Turn 2 latches and lift off distributor cap.
  2. Remove rotor and disconnect pick-up coil leads from HEI-EST module. See Figure. Mark distributor shaft and gear for later reassembly. Drive out roll pin and remove distributor shaft from housing.
  3. Remove retaining "C" washer, pick-up coil, magnet and pole piece. Remove 2 module attaching screws and capacitor screw. Lift module, capacitor and harness assembly from distributor housing. Disconnect wiring harness from module.
scientia non olet · About LEMON Manuals