REMOVAL & INSTALLATION
See Figures 1, 2, 3 and 4
- Disconnect the negative battery cable.
- Remove the distributor cap and position it aside with the wires attached.
- For vehicles through 1988, detach the TFI module connector.
- If necessary, detach the distributor from the engine control sensor.
- Remove the distributor assembly from the engine.
- Remove the rotor.
- If equipped, unfasten the two retaining screws and remove the module from the base. Wipe the grease from the base and module, keeping the surfaces free of dirt.
Hold the gear to loosen the armature screws, do not hold the armature.
- Mark the armature and distributor gear for orientation during installation.
- Hold the distributor drive gear and remove the armature retaining screws. Remove the armature.
- Remove the distributor gear retaining pins and discard, if equipped.
- If equipped, remove the gear and gear collar.
- Invert the distributor and place in the Axle Bearing/Seal Plate D84L-950-A/T75L-1165-B or equivalent arbor press. Press off the distributor gear from the shaft, using bearing removal tool D84L-950-A/D79L-4621-A or equivalent.
- Clean and polish the shaft with emery paper. Wipe clean so that the shaft slides out freely from the distributor base. Remove the shaft.
- Remove the octane rod retaining screw and retain, then remove the octane rod and retain.
- Unfasten the stator assembly retaining screws and remove the stator from the top of the bowl.
- Inspect the base bushing for wear or signs of excess heat concentration. If damaged, replace the entire distributor. Inspect the base O-ring for damage and replace, if necessary.
- Position the stator assembly over the bushing and press to seat. Place the stator connector in position. The tab should fit in the notch on the base and the fastening eyelets aligned with the screw holes. Be certain the wires are positioned away from moving parts.
- Install the stator retaining screws and tighten to 15-35 inch lbs. (1.7-4.0 Nm).
- Install the octane rod, inserting the rod through the base hole. Place the end of the octane rod onto the same post as the original stator. Only one post should fit easily in the rod hole. Firmly seat the octane rod seal into the housing.
- Apply a light coat of engine oil to the distributor shaft (do NOT overlubricate), beneath the armature. Insert the shaft through the base bushing.
- Place the collar, if required, over the shaft and line up the mark on the armature and original drill hole. Use a drift punch to ensure proper alignment. If not present, go to step 24.
- Insert a new roll pin through the collar and shaft. The pin should be flush with both sides of the collar when seated.
- Position a 1 / 2 in. deep well socket over the shaft, invert and place in the arbor press.
- Place the distributor gear on the shaft end. Make certain the mark on the armature align with the gear.
The hole in the shaft and gear must be properly aligned to ensure ease of the roll pin.
- Place a 5 / 8 in. deep well socket over the shaft and gear and press the gear to align with the original drill hole.
If the gear holes do not align, the gear must be removed and repressed on. A drift punch will not align the holes. As in the collar, the holes should align.
- Install a new roll pin through the gear and shaft. The pin should have proper extrusion.
- Install the armature. Tighten the screws to 25-35 inch lbs. (2.8-40Nm).
- Rotate the distributor shaft while checking for free movement.
If the armature contacts the stator, replace the entire distributor.
If equipped with TFI module, proceed as follows:
- Wipe the back of the module and its mounting surface in the distributor clean. Coat the base of the TFI ignition module uniformly with a 1 / 32 in. (0.8mm) of silicone compound (Silicone Dielectric Compound WA-10 or equivalent).
- Invert the distributor base so the stator connector is in full view. Then, insert the module. Be certain the 3 module pins are inserted into the stator connector.
- Install the module retaining screws and tighten to 15-35 inch lbs. (1.7-4.0 Nm).
- Install the distributor assembly into the engine block.
- If equipped, attach the distributor to the engine control sensor wiring.
- For vehicles through 1988, connect the TFI module wiring harness.
- Install the rotor and distributor cap. Tighten the cap mounting screws to 18-23 inch lbs. (2.0-2.6 Nm).
- Connect the negative battery cable. Check the initial ignition timing and adjust if necessary.