Q: How to install the Valve Rocker Arm and Hydraulic Valve Lash Adjuster?
A:
You need to lubricate the valve rocker arm and fill the valve lash adjuster and install the valve rocker arm and valve lash adjuster. Then you need to slowly rotate the engine counterclockwise enough that the cam lobe fully depresses the spring again. After that, you need to remove the EN-47945 from the cylinder head and repeat as required. Finally, you need to install the camshaft.
By Bob
GM Specialist
01/11/2022
Q: How to remove the Valve Rocker Arm and Hydraulic Valve Lash Adjuster?
A:
You need to remove the camshaft cover and rotate the crankshaft until the affected cylinder valve is fully open. Then you need to install the EN-47945 on the engine cylinder head and rotate the engine clockwise. After that, you need to remove the valve rocker arm and valve lash adjuster. Finally, you need to clean and inspect the valve rocker arm and valve lash adjuster.
By Bob
GM Specialist
01/11/2022
Q: Which tool is required during the Valve Rocker Arm and Hydraulic Valve Lash Adjuster replacement?
A:
You need to prepare the EN-47945 Valve Spring Compressor.
By Bob
GM Specialist
01/11/2022
FAQ for Other Repair Info
Q: What should I need to note when servicing the Valve Springs?
A:
You need to note that the Valve Springs can be tightly compressed, and you are recommended to use care when removing retainers and plugs to avoid personal injury.
Q: What is the recommended torque for the camshaft cover bolts and the camshaft cover ground wire bolt?
A:
The recommended torque is 10 Nm (89 lb in).
Q: What special tools are required during the Valve Stem Oil Seal and Valve Spring replacement?
A:
You need to prepare the EN 46547 Flywheel Holding Tool, the J 38820 Valve Stem Seal Installer, the J 39313 Spark Plug Port Adapter, the J 43059 Valve Retainer Remover/Installer, and the J-44228-A Valve Spring Compressor.