Clearance

Measure the intake rocker shaft and the exhaust rocker shaft.





1. Measure the diameter oil the shaft at the first rocker location.





2. Zero the gauge to the shaft diameter.





3. Measure the inside diameter of the rocker arm, and check it for an out-of-round condition.
Repeat for all rockers.
- If the clearance is over the limit, replace the rocker shaft and all overtolerance rocker arms.

NOTE: If any intake rocker arm needs replacement, replace all three rocker arms in that set (primary, mid, and secondary).