OEM GMC Sierra 1500 Pushrod

GMC Sierra 1500 Pushrod Parts and Q&A

• Push Rods
  10241740
  Q: How to replace the pushrod and valve rocker arm on GMC Sierra 1500?

  A:

  The first step involves removing the Rocker Arm cover where you must organize the rocker arms pushrods pivot support in a rack before their original position to begin the replacement process. Detaching the bolts on the Rocker Arm starts the procedure followed by separation of the Rocker Arm along with the pivot support before removal of the pushrods. You should clean and inspect both the rocker arms and the pushrods after cleaning. Applying clean engine oil to both rocker arms and pushrods should happen before installation as well as applying lubrication to the Rocker Arm bolt flange. The installation of Rocker Arm pivot support requires you to verify that pushrods properly fit in valve lifter sockets before adding pushrods to their final position. The pushrods must rest in proper position against the Rocker Arm ends before tightening the Rocker Arm bolts. The Crankshaft should be rotated until the number one Piston reaches top dead center (TDC) compression position while cylinder number one rocker arms should be off-lift lobe and the Crankshaft sprocket key needs to sit at the 1:30 position. Install both the bolts and rocker arms at this moment. Following the number one firing position the technician should apply 30 nm (22 ft. Lbs.) torque to all Rocker Arm bolts leading to cylinders 1, 2, 7 and 8 exhaust valves and to cylinders 1, 3, 4, 5 intake valves. Roll the Crankshaft 360 degrees before tightening the Rocker Arm bolts at 30 nm (22 ft. Lbs.) for cylinders 3, 4, 5, 6 exhaust valves and 30 nm (22 ft. Lbs.) for cylinders 2, 6, 7, 8 intake valves. Instillation of the Rocker Arm cover should be the final step.