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Home >> Cadillac >> 2016 >> SRX Performance, AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 3.0L (LFW) Or 3.6L (LFX) - Repair Instructions - Off Vehicle >> Repair Instructions - Off Vehicle >> Piston and Connecting Rod Assemble >> Piston and Piston Pin Installation Procedure

Piston and Piston Pin Installation Procedure

    Fig 1: Piston Pin
    GM1210818Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • The piston is directional and must be installed in the engine block in the proper direction. The dot on the top of the piston must face the front of the engine.
    • The piston is model dependent and may not appear exactly as shown.
  1. Lubricate the piston pin bores in the piston and the connecting rod with GM prelube lubricant. Refer to Adhesives, Fluids, Lubricants, and Sealers for recommended lubricant.
  2. Assemble the piston and piston pin to the connecting rod. Properly orient the piston when reusing a marked connecting rod.
  3. Align the piston pin bore with the connecting rod pin bore.
  4. Slide the piston pin into the piston and the connecting rod.
    5. Fig 2: Piston Pin Retainers Removal Access Notch
    GM1210796Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    New piston pin retainers must be used. Never reuse the piston pin retainers.

  5. Install NEW piston pin retainers using the EN-46745  remover/installer. Align the EN-46745  remover/installer to the notch (1) in the piston.
  6. Ensure that the piston pin retainers are fully seated in their grooves.
  7. Repeat these procedures for the remaining pistons.
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