Distributor Disassembly, Test and Reassembly
Distributor DisassembleNotice: The OBD II ignition system distributor driven gear and rotor can be installed in multiple positions. Be sure to mark the following positions:
^ The distributor driven gear
^ The distributor shaft
^ The rotor holes for the same mounting position upon reassembly
Installing the driven gear 180° off, or locating the rotor in the wrong holes, will cause a no start condition. Also premature wear and damage may result.
Notice: Failure to keep cleaning agents away from the distributor Hall Effect switch may cause premature failure.
1. Remove the two screws that hold the distributor cap to the housing.
2. Remove the cap from the housing.
3. Remove the two screws from the rotor.
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4. Remove the rotor.
5. Note the locating holes the rotor was removed from.
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6. Remove the two screws that hold the Hall Effect switch.
7. Line up the square cut hole in the vane wheel with the switch.
8. Remove the Hall Effect switch.
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9. Remove the roll pin from the distributor shaft.
^ Note the dimple located below the roll pin hole on one side of the gear.
^ The dimple will be used to properly orient the gear on the shaft during reassembly.
10. Drive out the roll pin with a suitable punch, wear safety glasses.
11. Remove the driven gear from the distributor shaft.
12. Remove the round washer.
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13. Remove the tang washer.
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14. Remove the distributor shaft from the housing.
^ If the shaft cannot be removed from the distributor housing due to varnish buildup, use a cloth dampened with varnish remover to clean the shaft.
^ Do not allow the varnish remover to travel up the distributor shaft. This may remove the lubrication from the shaft bushings.
Distributor Assemble
1. Install the Hall Effect switch.
2. Install the two screws holding the hall effect switch. Do not overtighten, as the plastic base may strip.
3. Lubricate the lower distributor housing bushing with a few drops of clean engine oil.
4. Install the distributor shaft into the distributor housing.
5. Install the tang washer over the bottom of the distributor shaft.
6. Install the round washer.
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7. Install the driven gear according to the index marks.
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8. Align the driven gear roll pin, the pre-drilled indent hole, and the arrow cast into the distributor housing.
^ The alignment will not be exact.
^ If the driven gear is installed incorrectly, the dimple will be approximately 180° degrees opposite the rotor segment when it is installed in the distributor.
^ Installing the driven gear 180° degrees off, or locating the rotor in the wrong holes, may cause a no start condition.
^ Also premature wear and damage may result.
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9. Install the roll pin to hold the driven gear in the correct position. Wear safety goggles.
10. Install the rotor according to the index marks.
11. As shown, the number 2 is the rotor mounting holes and the number 1 is the locating holes.
12. Install the two rotor hold down screws.
Tighten
^ Tighten the screws to 2.5 Nm (25 lb. in).
13. Install the distributor in the engine, with the cap off.
14. Install the bolt in the hold down lug.
Tighten
^ Tighten the bolt to 27 Nm (20 lb. ft).
15. Install the distributor cap.
16. Connect the cap to the housing with the two screws.