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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 365 (ENGINE MECHANICAL - 3.8L (UNIT REPAIR))REPAIR INSTRUCTIONSVALVE ROCKER ARM AND PUSH ROD INSTALLATION
1999 GMC Forward Control 5.7 R, Automatic

Valve Rocker Arm and Push Rod Installation

1999 GMC Forward Control 5.7 R, AutomaticSECTION Valve Rocker Arm and Push Rod Installation
WARNING: This page is about a different car, the 2002 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required: J 36660-A  Torque Angle Meter

  1. Install the pushrod guide plate.
  2. Install the push rods.
  3. Install the valve rocker arm bearing retainer.
  4. Coat the valve stem tip and pushrod tip with prelube GM P/N United States 1052367, GM P/N Canada 992869 or the equivalent.
  5. Install the valve rocker arms.
  6. Apply GM P/N United States 12345493, GM P/N Canada 10953488 threadlocker or the equivalent to the valve rocker arm bolt threads.
    Fig 1: Valve Rocker
    G01764634Courtesy of GENERAL MOTORS CORP.
  7. Install the valve rocker arm bolts.

    Tighten: 

    Tighten the valve rocker arm bolts to 15 N.m (11 lb ft) + 90 degrees using J 36660-A 

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.