OEM 2008 Chevrolet Corvette Rocker Arm

2008 Chevrolet Corvette Rocker Arm Parts and Q&A

• Q: How to replace the valve rocker arm and push rods on 2008 Chevrolet Corvette?

  A: Starting the valve Rocker Arm and push rod replacement requires the removal of valve Rocker Arm covers first. Set a rack to hold the valve rocker arms and valve pushrods along with their supportive pivot until their original positions become ready for use. Start by uninstalling the valve Rocker Arm bolts after which you should remove the valve rocker arms and valve Rocker Arm pivot support and then pull out the pushrods. The mechanic must clean the valve rocker arms before conducting an inspection of both components. Valve lash remains at a net build during installation therefore no adjustment should be made since all components must be positioned exactly as they were before removal. Clean engine oil should be used for lubrication on valve rocker arms and pushrods with additional application on the bolt flange of the valve Rocker Arm. The valve Rocker Arm pivot support requires installation at this point where the pushrods should correctly enter the valve lifter sockets before the pushrods can be installed into the rocker arms while leaving the Rocker Arm bolts untightened for now. Attach the rockers followed by installing their bolts. The technician needs to rotate the Crankshaft while keeping the number one Piston at top dead center of the compression stroke to achieve several objectives: the cylinder number one rocker arms should be off lobe lift and the Crankshaft sprocket key needs to reach the 1:30 position with alignment marks exactly at 12 o'clock. The technician should torque the exhaust valve Rocker Arm bolts 1, 2, 7, and 8 to 30 n.m (22 lb ft) simultaneously with the intake valve Rocker Arm bolts 1, 3, 4, and 5. After rotating the Crankshaft by 360 degrees the technician must tighten exhaust valve Rocker Arm bolts 3, 4, 5, 6 together with intake valve Rocker Arm bolts 2, 6, 7, 8 at 30 n.m (22 lb ft). The installation of the valve Rocker Arm covers must complete the process.