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Home >> Pontiac >> 2008 >> Grand Prix GXP >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 3.8L) >> Repair Instructions - On Vehicle >> Valve Rocker Arm and Push Rod Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Use compressed air in order to blow oil out of the tapped holes in the cylinder head.
    2. Fig 1: Push Rods
    GM406030Courtesy of GENERAL MOTORS CORP.
  2. Lubricate the ends of the push rods with new engine oil.
  3. Install the push rods to the same position on the cylinder head.
    4. Fig 2: Push Rod Guide Plates
    GM406028Courtesy of GENERAL MOTORS CORP.
  4. Install the push rod guide plates.
    5. Fig 3: Rocker Arm & Bolts
    GM406027Courtesy of GENERAL MOTORS CORP.
  5. Install the valve rocker arms.
    6. NOTE: This bolt is designed to permanently stretch when tightened, and therefore MUST be replaced anytime it is removed. The correct part number fastener must be used to replace this type of fastener. Do not use a bolt that is stronger in this application. If the correct bolt is not used, the parts will not be tightened correctly. The system or the components may be damaged.
  6. Apply threadlocker to the rocker arm bolt threads. Refer to Sealers, Adhesives, and Lubricants  for the correct part number.
    7. NOTE: Refer to Fastener Notice .
  7. Install the valve rocker arm bolts.

    Tighten: 

    1. Tighten the bolts to 15 N.m (11 lb ft).
    2. Use the J 45059  to rotate the bolts an additional 90 degrees.

  8. Install the left or the right valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left Side  or Valve Rocker Arm Cover Replacement - Right Side .
  9. Inspect the valve train for noise.
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