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Ignition System - HEI (Federal): Overhaul: Disassembly

  1. Disconnect wiring harness from distributor cap. Disconnect coil connectors from cap. Remove distributor cap and disconnect vacuum hose from vacuum advance mechanism.
  2. Mark rotor position to distributor housing and distributor housing to engine for later reassembly reference. Remove fuel pump. Remove hold-down bolt and remove distributor housing from engine.
  3. Remove rotor, 2 advance springs, weight retainer and advance weights. Drive out roll pin from drive gear while supporting gear so no damage will occur to distributor shaft. Remove gear, shim and tanged washer from distributor shaft and clean any burrs from shaft. Remove distributor shaft from housing.
    NOTE: DO NOT  attempt to service shaft bushings in housing.
  4. Remove 2 attaching screws holding module to housing and position module so pick-up coil leads can be removed. Remove electronic module. Remove snap ring from housing and lift out pick-up coil assembly. Remove 2 attaching screws and lift out vacuum advance mechanism.
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