OEM 2003 Chevrolet Corvette Pushrod

2003 Chevrolet Corvette Pushrod Parts Questions & Experts Answers

• Q: How to replace the pushrod and valve rocker arm on 2003 Chevrolet Corvette?

  A: Start by removing valve Rocker Arm covers before you arrange the valve rocker arms with valve pushrods and pivot support on a rack by their original positions. The maintenance starts by taking out the valve Rocker Arm bolts and proceeded with eliminating the valve rocker arms and valve Rocker Arm pivot support before disconnecting the pushrods. Installation of reused valve rocker arms and pushrods requires maintaining their original positions due to natural built valve lash because no adjustment is needed in this process. Clean engine oil should be used for lubricating both valve rocker arms and pushrods while the bolts' flange requires additional lubrication. Set the pushrods to fit correctly into valve lifter sockets while you install the valve Rocker Arm pivot support. Proceed to place the pushrods into the Rocker Arm ends before finishing with the assembly. Set the rocker arms in place but avoid tightening the bolts as a next step. Turn the Crankshaft until the number one Piston reaches its top dead center compression stroke point during this process the cylinder number one rocker arms will be lifted off their lobe and the sprocket key will end up at position 1:30. Adjust the exhaust valve Rocker Arm bolts 1, 2, 7, and 8 to 30 nm (22 ft. Lbs.) while the intake valve Rocker Arm bolts 1, 3, 4, and 5 require the same torque value of 30 nm (22 ft. Lbs.) after positioning the engine at number one firing position. After rotating the Crankshaft by 360 degrees the technician should tighten exhaust valve Rocker Arm bolts 3, 4, 5, and 6 to 30 nm (22 ft. Lbs.) and intake valve Rocker Arm bolts 2, 6, 7, and 8 to 30 nm (22 ft. Lbs.). Proceed with installing the valve Rocker Arm covers as the last step.