OEM Buick Lucerne Rocker Arm

Buick Lucerne Rocker Arm Parts Questions & Experts Answers

• Rocker Arms, Green Line
  12565203
  Q: How to service and repair the valve rocker arm and push rod on Buick Lucerne?

  A: A torque angle meter (J45059) should be used when performing valve Rocker Arm and push rod maintenance because it is necessary to gather this tool along with other required equipment first. Climb under the engine to eliminate the valve Rocker Arm covers as well as extract the valve Rocker Arm bolts from their positions. The placement of parts on a sanitized area while keeping all components organized will help for reassembly. You must remove the valve rocker arms together with the guide plate if all rocker arms need replacement before taking out the push rods. The suitable cleaning solution must be used to clean push rods and valve rocker arms and bolts alongside guide plates. The valve Rocker Arm bolts need specific attention to remove all thread adhesive. Before installing push rods back into their original positions use compressed air to remove oil from cylinder head tapped holes while applying prelube gm p/n 1052367 (Canadian P/N 992869) or equivalent to the ends of the push rods. First install both the valve Rocker Arm guide plate(s) together with the valve Rocker Arm(s). Thread lock gm p/n 12345493 (Canadian P/N 10953488) or identical product should be applied to the Rocker Arm bolts before their installation with a torque of 15 nm (11 ft. Lbs.) and an additional 90-degree torque angle using the torque angle meter (J45059). Install the valve Rocker Arm cover(s) afterward finish the inspection of the valve train for any noisy signals.