Ignition Control Module: Service and Repair

REMOVAL

Distributor Disassembly:

1. Disconnect negative battery cable.
2. Disconnect vacuum hose from vacuum control unit. Note location of each hose for proper installation.
3. Unplug electrical connectors.
4. Disconnect coil wire from distributor cap.
5. Remove retaining screws from distributor cap; position out of the way.
6. Scribe distributor housing and cylinder head so that distributor may be installed in its original position. Note rotor position.
7. Remove distributor rotor.
8. Remove distributor hold-down bolts and distributor.

NOTE: Do not crank engine after distributor has been removed.

9. Remove dust cover.
10. Remove screw retaining signal rotor; remove signal rotor.
11. Unplug connector on pick-up assembly.
12. Remove screws retaining pick-up coil; remove pick-up coil assembly.
13. Remove screws retaining mounting plate; remove mounting plate.
14. Remove snap ring retaining armature and pin.

Armature, Turbo:

15. Pull armature and pin from upper shaft using 2 jaw puller.
16. Unplug connectors on igniter module and remove retaining screws.
17. Remove igniter module.

INSTALLATION

1. Apply a thin, even film of silicone dielectric compound to igniter module mounting face.
2. Position module and install retaining screws.
3. Plug in wiring connectors.

Armature Installation:

4. Using a socket and the palm of your hand, press armature and pin onto upper shaft until it bottoms against shoulder of upper shaft.
5. Install snap ring retaining armature and pin.
6. Install mounting plate with retaining screws.
7. Install pick-up coil assembly with retaining screws.
8. Plug in wiring connector on pick-up assembly.
9. Position signal rotor onto upper shaft and secure with retaining screw.
10. Install dust cover.
11. Set rotor to position noted during removal. Lubricate O-ring seal with engine oil.

NOTE: If crankshaft is turned while distributor is removed, rotor position noted during removal can no longer be used to correctly time distributor to camshaft. Distributor drive tang is off-set to allow only one installation position. Insert distributor and rotate rotor until drive tang falls into slot of camshaft.

12. Install distributor on rear of cylinder head and align scribe marks.
13. Install distributor hold-down bolts.
14. Install distributor cap and tighten retaining screws.
15. Connect coil wire to distributor cap.
16. Plug in electrical connectors.
17. Connect vacuum hoses.
18. Connect negative battery cable.
19. Start engine, check and adjust ignition timing as necessary.