OEM 2005 GMC Savana 2500 Rocker Arm

2005 GMC Savana 2500 Parts Questions & Experts Answers

• Q: How to replace the valve rocker arm and push rods on 2005 GMC Savana 2500?

  A: The replacement of valve rocker arms and pushrods begins with removing the valve Rocker Arm cover so you can organize valve rocker arms and pushrods with the pivot support in a rack where they can retain their original positions. The maintenance sequence starts with removing bolts from valve rocker arms and proceeding with the removal of valve rocker arms and valve Rocker Arm pivot support alongside pushrods. The inspection and cleaning process applies to valve rocker arms as well as pushrods. During the installation sequence apply clean engine oil to valve rocker arms and pushrods and to also coat the valve Rocker Arm bolt flange. Properly set the pushrod sockets in the valve lifters while the Rocker Arm ends into position before tightening the bolt yet. The number one piston has to reach top dead center (TDC) of compression stroke for the Crankshaft sprocket key to align at the 1:30 position while the cylinder number one rocker arms are off lobe lift. Tighten the Rocker Arm bolts for exhaust cylinders 1 and 2 and 7 and 8 to 30 nm while the intake bolts for 1 and 3 and 4 and 5 receive the same torque value when the engine rests in number one firing configuration. Next proceed with rotating the Crankshaft 360 degrees followed by torque tightening the valve Rocker Arm bolts on cylinders 3, 4, 5, 6 exhaust to 30 nm (22 ft. Lbs.) and cylinders 2, 6, 7, 8 intake to 30 nm (22 ft. Lbs.). The installation process of the valve Rocker Arm cover completes the procedure.