Inspection

CLEARANCE INSPECTION

Measure both the intake rocker shaft and exhaust rocker shaft.

Checking Shaft Diameter:

1. Measure diameter of shaft at first rocker location.

Zero Bore Gauge Before Checking:

2. Zero gauge to shaft diameter.

Checking Rocker Clearance:

3. Measure inside diameter of rocker arm and check for out-of-round condition.

Rocker Arm-to-Shaft Clearance: [1]
Intake Standard (New):
0.017 - 0.050 mm (0.0007 - 0.0020 in)
Exhaust Standard (New):
0.018 - 0.054 mm (0.0007 - 0.0021 in)
Service Limit: 0.08 mm (0.003 in)

4. Repeat for all rockers. If over limit, replace rocker shaft and all over-tolerance rocker arms.