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Pinion Clearance

  1. Disconnect motor field coil connector and insulate it carefully. Connect a battery from solenoid switch terminal to solenoid frame. Momentarily flash a jumper lead from motor terminal to solenoid frame.
  2. This shifts pinion into cranking position. Push pinion back toward commutator end to eliminate slack. Distance between pinion and pinion stop should be .010-.160" (.25-4.5 mm). Clearance is not adjustable. If clearance is not to specification, check for proper assembly.
Fig 1: Checking Pinion-to-Housing Clearance
G71061
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