GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2007 🢒 VUE - AWD 🢒 Engine 🢒 Engine Mechanical - 3.5L (L66) 🢒 Valve Rocker Arm and Shaft Replacement

Removal Procedure

    Important: Identify parts as they are removed so they can be installed in their original locations if used again. When removing or installing the rocker arm shaft assembly, do not remove the rocker arm shaft mounting bolts. The bolts will retain the springs and rocker arms onto the shaft.

  1. Remove the valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left Side and Valve Rocker Arm Cover Replacement - Right Side .

    2. Object Number: 897124 Size: SH
  2. Loosen the adjusting nuts (217) and bolts (216).

    3. Object Number: 897125 Size: SH
  3. Loosen the left side rocker shaft retaining bolts in sequence. Loosen the valve rocker shaft mounting bolts 2 turns at a time in sequence, to prevent damaging the valves or rocker arms.

    4. Object Number: 1308051 Size: SH
  4. Loosen the right side rocker shaft retaining bolts in sequence. Loosen the valve rocker shaft mounting bolts 2 turns at a time in sequence, to prevent damaging the valves or rocker arms.

    5. Object Number: 1336941 Size: SH

    Important: Identify parts as they are removed so they can be installed in their original locations if used again. When removing or installing the rocker arm shaft assembly, do not remove the rocker arm shaft mounting bolts. The bolts will retain the springs and rocker arms on the shaft.

  5. Remove the bolts (1) and valve rocker arm and shaft assemblies.
  6. Remove the lash adjusters (2).

    7. Object Number: 1336942 Size: SH
  7. Remove the intake valve rocker arms as an assembly (4) from the shaft (1). Refer to Separating Parts .
  8. Remove the exhaust valve rocker arms (6) and springs (5) from the shaft (7).
  9. Remove the nuts (3) and bolts (2).

    10. Object Number: 1336943 Size: SH
  10. Note the installed location of the exhaust valve rocker arms (2).

Installation Procedure

    Object Number: 1336942 Size: SH
  1. Install the bolts (2) and nuts (3). Do not tighten the nuts at this time.
  2. Install the intake valve rocker arm assemblies (4) onto the shaft (1).
  3. Install the bolts to the shaft (1).
  4. Install the exhaust valve rocker arms (6) and springs (5) onto the shaft (7).

    5. Object Number: 1336943 Size: SH
  5. Note the installed position of the exhaust valve rocker arms (2).
  6. Install the bolts to the shaft (3).

    7. Object Number: 1336941 Size: SH
  7. Install the lash adjusters (2).

    8. Notice: Refer to Fastener Notice in the Preface section.

    Important: The intake rocker arm shaft front locating pin serves as an oil passage for VTEC system operation. During assembly, use care to locate the shaft onto the pin. Replace pins that are bent or damaged.

  8. Install the rocker arm and shaft assemblies and bolts (1).

    9. Object Number: 897309 Size: SH
  9. Tighten the left side rocker shaft retaining bolts in sequence. Tighten the bolts 2 turns at a time in sequence, to ensure that the rocker arms do not bind on the valves.

    10. Tighten

    1. Tighten the bolts in sequence a first pass to 12 N·m (106 lb in).
    2. Tighten the bolts in sequence a final pass to 24 N·m (17 lb ft).

    Object Number: 1308168 Size: SH
  10. Tighten the right side rocker shaft retaining bolts in sequence. Tighten the bolts 2 turns at a time in sequence, to ensure that the rocker arms do not bind on the valves.
  11. Install the valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left Side and Valve Rocker Arm Cover Replacement - Right Side .