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Oil Pump Assembly: Reassembly

  1. Reassemble oil pump. See Fig 1. Install oil pump gears into pump body with identification dots facing up. Measure gear clearance between oil pump gears and pump body. Clearance should be .0007-.0028" (.017-.071 mm).
  2. Ensure pump body mating surface is flat. Install pump cover onto body. Install cover bolts and hand tighten bolts. Install Alignment Pin (J-25025-1) into pump. Install and tighten oil pump Alignment Band (J-21368). See Fig 4. Tighten oil pump attaching bolts.
  3. To install TCC enable valve, compress spring into oil pump body, and insert a small rod into hole "A". See Fig 3. Install spring retainer, and remove small rod.
Fig 1: Exploded View Of Oil Pump Assembly
G92G13850Courtesy of GENERAL MOTORS CORP.
Fig 2: Exploded View Of Overdrive/Overrun Assembly
G92C13849Courtesy of GENERAL MOTORS CORP.
Fig 3: Locating TCC Enable Valve Spring Temporary Holder Hole
G92H13851Courtesy of GENERAL MOTORS CORP.
Fig 4: Aligning Oil Pump Cover To Body
G92I13852Courtesy of GENERAL MOTORS CORP.
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