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Home›Repair guides›Ignition System Disassembly

Nissan — Ignition System Disassembly

For these Nissan models: H15, H20-11, H25.

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Before you start

  • When removing signal rotor, be careful not to distort or damage the teeth
  • Do not place pickup coil in an area where there are iron fillings

Procedure

  1. Remove cap and rotor head
  2. Remove vacuum controller
  3. Insert a flat-bladed screwdriver under lower side of signal rotor, and pry signal rotor from shaft. Remove roll pin from signal rotor
  4. Remove heat sink and breaker plate securing bolts (shown by arrows), then remove heat sink
  5. Knock roll pin out and remove collar
  6. Remove two screws
  7. Draw out shaft assembly from housing
  8. Unscrew rotor shaft setscrew. Remove rotor shaft
  9. Remove governor weight and governor spring from the shaft assembly
  10. Before removing ignition coil from housing, remove securing bolts

Source: manual:Nissan H15-H20-H25 Service Manual 1993.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.