Distributor: Service and Repair
Removal
1. Disconnect the negative battery cable.
2. Disconnect vacuum hose from vacuum control unit.
3. Disconnect electrical connectors.
4. Disconnect coil wire from distributor cap.
5. Remove two retaining screws from distributor cap, and position out of the way.
6. Scribe distributor housing and cylinder head so that distributor may be installed in its original position. Note location on rotor.
7. Remove two distributor hold-down bolts and remove distributor.
8. Inspect O-ring, replace if damaged or worn.
Installation
NOTE: If the crankshaft is turned while the distributor is removed, the rotor position noted during removal can no longer be used to correctly time the distributor to the camshaft. The drive tang of the distributor is off-set so as to allow only one installation position. Insert distributor and rotate rotor until drive tang falls into slot of camshaft.
1. Set rotor to position noted during removal. Lubricate O-ring seal with engine oil.
2. Install distributor on rear of cylinder head and align scribe marks.
3. Install two distributor hold-down bolts.
4. Install distributor cap and tighten two retaining screws.
5. Connect coil wire to distributor cap.
6. Connect electrical connectors.
7. Connect vacuum hoses to vacuum control unit.
8. Connect negative battery cable
9. Start engine, check and adjust ignition timing as necessary. Refer to ADJUSTMENT PROCEDURES.
Disassembly
1. Loosen the two screws that retain distributor cap and remove distributor cap.
2. Remove pick-up unit and radio noise suppressor.
3. Note the location of connectors and disconnect connectors from module.
4. Remove the two module retaining screws.
Distributor Disassembly:
5. Using puller pull armature and pin from upper shaft.
6. Remove module assembly.
7. Remove two retaining screws from mounting plate and remove mounting plate.
8. Remove retaining clip and two screws retaining vacuum control unit and remove control unit.
9. Remove two screws retaining breaker plate assembly.
10. Remove breaker plate assembly.
11. Remove snap ring retaining advance plate and remove advance plate and placer.
12. Mark the upper shaft and an advance weight pin with paint.
NOTE: Marking location of upper shaft is necessary to ensure that upper shaft is installed properly during assembly.
13. Remove retaining screw from inside upper shaft and remove upper shaft.
14. Mark position of lower shaft to drive collar with paint and drive out roll pin with a suitable punch.
15. Remove two retaining screws from bearing plate and remove lower shaft.
16. Remove retaining clips and springs from advance weights and remove advance weights.
17. If necessary, press off bearing from lower shaft.
18. If necessary, remove oil seal from housing
Distributor Assembly:
Cleaning and Inspection
1. Wipe all parts with a clean cloth.
2. Inspect O-rings and replace if damaged or worn.
3. Inspect distributor base for damage.
4. Inspect lower shaft for looseness or binding.
5. Lubricate all pivoting and sliding surfaces.
6. Apply a evenly a thin film of Silicone Dielectric Compound to the module mounting face.
Assembly
1. If removed, install oil seal in housing.
2. If removed, press bearing on lower shaft.
3. Install advance weights, retaining clips and springs.
4. Install lower shaft into housing and install two retaining screws and bearing plate.
5. Install drive collar onto lower shaft, align paint marks and drive in roll pin.
6. Install upper shaft and align paint marks.
7. Install retaining screw in upper shaft.
8. Install spacer, advance plate and snap ring.
9. Install breaker plate and secure with two retaining screws.
10. Position vacuum control unit. Make sure actuating arm is installed on stud of breaker plate.
11. Install two screws retaining vacuum control unit and install actuating arm retaining screws.
12. Position mounting plate and secure with two retaining screws.
13. Position module assembly and secure with two retaining screws.
Armature Installation:
14. Using a socket and the palm of your hand, press armature and pin onto upper shaft until it bottoms against shoulder of upper shaft.
15. Disconnect module leads in positions noted during Disassembly.
16. Install radio noise suppressor and pick-up unit.
17. Install dust cover, gasket and distributor rotor.
18. Install distributor cap and secure with two retaining screws.