Valve Rocker Arm & Valve Lash Adjuster: Removal & Installation (4.2L Engine); En-47945 Valve Spring Compressor - Chevrolet Trailblazer Service Manual

Valve Rocker Arm & Valve Lash Adjuster
Removal & Installation
4.2L Engine
To Remove:
1. Remove the camshaft cover from the cylinder head.
2. Turn the crankshaft until the valve of the desired cylinder is fully open.

EN-47945 valve spring compressor

1. valve spring compressor to the engine cylinder head using the supplied fasteners
in the coil fastener hole.
2. Turn the engine in clockwise until the cam is on the base circle, make sure not to
completely turn the engine or the piston will contact and possibly damage the
valves.
3. Remove the valve rocker arm from the cylinder head.
4. Remove the valve lash adjuster from the cylinder head.