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Home >> Chevrolet >> 2014 >> Express 1500 LS, AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 4.8L (L20), 5.3L (LMF), Or 6.0L (L96 LC8) - Repair Instructions - On Vehicle >> Repair Instructions - On Vehicle >> Oil Pump, Screen and Crankshaft Oil Deflector Replacement >> Installation Procedure

Installation Procedure

    Fig 1: View Of Oil Pump & Bolts
    GM1658173Courtesy of GENERAL MOTORS COMPANY
  1. Align the splined surfaces of the crankshaft sprocket and the oil pump drive gear and install the oil pump (413).
  2. Install the oil pump onto the crankshaft sprocket until the pump housing contacts the face of the engine block.
    CAUTION:

    Refer to Fastener Caution .

  3. Install the oil pump bolts (411) and tighten to 25 N.m (18 lb ft).
    4. Fig 2: View Of Crankshaft Oil Deflector
    GM260099Courtesy of GENERAL MOTORS COMPANY
  4. Install the crankshaft oil deflector and nuts until snug.
    5. Fig 3: View Of Oil Pump Screen, Bolt, Nuts, & O-Ring Seal
    GM1277115Courtesy of GENERAL MOTORS COMPANY
  5. Lubricate a NEW oil pump screen O-ring seal (406) with clean engine oil.
  6. Install the NEW O-ring seal onto the oil pump screen.
    7. NOTE:

    Push the oil pump screen tube completely into the oil pump prior to tightening the bolt. Do not allow the bolt to pull the tube into the pump.

  7. Align the oil pump screen mounting brackets with the correct crankshaft bearing cap studs.
  8. Install the oil pump screen (407).
  9. Install the oil pump screen bolt (405) and nuts (404).
    1. Tighten the oil pump screen bolt to 12 N.m (106 lb in).
    2. Tighten the crankshaft oil deflector/oil pump screen nuts to 25 N.m (18 lb ft).
  10. Install the engine front cover. Refer to Engine Front Cover Replacement .
  11. Install the oil pan. Refer to Oil Pan Replacement .
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