Special Tools

J 36660-A Torque Angle Meter

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




Important: Keep the components separated in order to install the components in the same location.

2. Remove the rocker arm bolt(s).

Important: Retain the pushrods in the order that they are removed. Keeping the components in order will ensure installation into the original position.

3. Remove the valve rocker arm(s) and the pushrod(s).

1. Coat the ends of the push rods and rocker arm friction surfaces using prelube GM P/N 12345501 or GM P/N 88862586 (Canadian P/N 992704 or Canadian P/N 88862586) or the equivalent.

Important: The intake valve push rods measure 144 mm (5.75 in) in length, (yellow). The exhaust valve push rods measure 152.5 mm (6.0 in) in length, (green).

2. Install the push rods in their original location.

Notice: Refer to Fastener Notice in the Preface section.




3. Install the valve rocker arm(s) and the bolt(s).

Tighten
Use the J 36660-A to tighten the bolts to 19 N·m (14 lb ft) plus an additional 30 degrees.

4. Install the valve rocker arm cover(s). Refer to Valve Rocker Arm Cover Replacement - Left Side and/or Valve Rocker Arm Cover Replacement - Right Side.