Rocker Arm Assembly; Rocker Arm Disassembly; Rocker Arm Inspection And Repair - Isuzu NHR 4J Series Workshop Manual

6A – 24 GENERAL ENGINE MECHANICAL

ROCKER ARM ASSEMBLY

DISASSEMBLY
1. Rocker Arm Shaft Assembly
2. Rocker Arm Shaft Snap Ring
3. Rocker Arm
4. Rocker Arm Shaft Bracket
5. Rocker Arm
6. Rocker Arm Shaft Spring
7. Rocker Arm Shaft
INSPECTION AND REPAIR
Make the necessary adjustment, repairs, and part
replacements if excessive wear or damage is discovered
during inspection.
Use a micrometer to measure the rocker shaft outside
diameter at the point where the rocker arm moves on the
rocker shaft.
Replace the rocker shaft if the diameter exceeds the
specified limit.
6A-24-2.tif
Standard
18.98 - 19.00
(0.7472 - 0.7480)
6A-24-1.tif
mm (in)
Limit
18.9 (0.744)