Hall Effect Sensor: Service and Repair
REMOVALCAUTION: Do not attempt to replace stator without an arbor press.
1. Remove distributor assembly.
CAUTION: The drive gear on distributors is not released for service. If any nicks or cracks occur during the disassembly or reassembly procedures, a new distributor must be used. The distributor drive gear is matched to the distributor at assembly and should never be replaced. Although some of the drive gears for other distributors may physically fit the distributor, they must not be used. Whenever damage or excessive wear is noted on the drive gear, it must be replaced with a new distributor.
2. Remove two armature retaining screws.
NOTE: Hold drive gear to loosen the armature screws, do not hold the distributor armature.
3. Remove armature.
4. Mark the collar and distributor gear with a felt tip pen for reference when reinstalling the distributor gear.
5. Remove and discard the roll pin from both the gear and collar.
Removal Of Distributor Gear:
6. Invert the distributor and place in the Axle Bearing/Seal Plate T75L-1165-B. Press off the gear Bearing Pulling Attachment D79L-4621-A or equivalent.
7. Deburr and polish the shaft with emery cloth so the shaft assembly will slide out freely from the distributor base.
8. Remove the shaft assembly.
9. Remove the distributor stator assembly screw and retainer.
10. Remove the octane rod screw, octane rod, and retainer.
11. Remove the distributor stator from the top of the bowl.
INSTALLATION
1. Inspect distributor base housing and bushings for any indication of excessive heat concentration, cracks, or wear. Replace complete distributor if damage is found.
2. Position distributor stator on the bushing of the distributor base housing and press into place.
3. Position distributor stator connector tab into the notch of the distributor base housing so that the eyelets will align with the screw holes.
4. Position distributor stator connector wires away from any moving parts.
5. Install the distributor stator assembly screw and retainer. Tighten screw to 1.7-4.0 Nm (15-35 in lb).
6. Install the octane rod, octane rod screw, and retainer. Tighten screw to 1.7-4.0 Nm (15-35 in lb).
7. Lubricate lightly the shaft assembly with a coating of fresh motor oil or with Engine Assembly Lubricant D9AZ-19579-D meeting Ford specification ESR-M99C80-A.
8. Install the shaft assembly into the distributor base housing.
9. Place a 1/2 inch deep well socket over the end of the shaft assembly.
10. Invert the distributor and place on the arbor press.
11. Install the collar and collar pin.
12. Install the distributor gear on the shaft assembly and align the distributor gear with the felt tip reference.
NOTE: The hole in the drive gear and shaft assembly must be aligned as accurately as possible to allow for ease of the roll pin insertion.
CAUTION: The drive gear on distributors is not released for service. If any nicks or cracks occur during the disassembly or reassembly procedures, a new distributor must be used. The distributor drive gear is matched to the distributor at assembly and should never be replaced.
NOTE: If the hole in the drive gear and shaft assembly will not align, the gear must be removed and attempted again. The gear can not be turned for alignment.
13. Place a 5/8 inch deep well socket centered around gear hole and press the distributor gear onto the shaft assembly.
14. Insert new pin through the distributor gear. The pin should be flush.
15. Install distributor armature.
16. Install the armature retaining screws and tighten screws to 2.8-4.0 Nm (25-35 in lb).
NOTE: Hold drive gear to tighten the armature screws; do not hold the distributor armature.
17. The distributor shaft should rotate freely, without any binding.
NOTE: If the distributor armature contacts the distributor stator, the entire distributor must be replaced.
18. Install the distributor assembly and reset initial timing.