LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Pontiac >> 1991 >> LeMans Base >> Repair and Diagnosis >> Engine Mechanical >> Starter >> Starting System >> Bench Testing >> Pinion Clearance Check
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Pinion Clearance Check

  1. Disconnect motor field coil at solenoid "M" terminal and insulate the field connector. See Figure. Connect a 12-volt positive lead to solenoid "S" terminal and other lead to ground. Touch a jumper lead from solenoid "M" terminal to starter frame, shifting pinion into cranking position.
  2. Push pinion away from stop retainer as far as possible. See Fig 2. Using a feeler gauge, ensure .010-.140" (.25-3.6 mm) clearance exists between pinion and retainer.
NOTE: Pinion clearance is not adjustable. If clearance is not within specification, motor must be disassembled and rechecked.
Fig 1: Cranking Circuit (Typical)
G102069Courtesy of GENERAL MOTORS CORP.
Fig 2: Checking Pinion End Play
G102068Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals