J35Z3 Engine
Rocker Arm and Shaft Inspection1. Remove the rocker arm assembly.
2. Disassemble the rocker arm assembly.
3. Measure the diameter of the shaft at the first rocker location.
4. Zero the gauge (A) to the shaft diameter.
5. Measure the inside diameter of the rocker arm, and check it for an out-of-round condition.
6. Repeat for all rockers and both shafts. If the clearance is over the limit, replace the rocker shaft and all over-tolerance rocker arms. If any intake rocker arm needs replacement, replace all rocker arms in that set (primary and secondary).
Variable Cylinder Management Rocker Arms
7. Inspect the rocker arm piston (A). Slide them into the rocker arms. If they do not move smoothly, replace the rocker arm set.
8. Install the rocker arm assembly.