Range Rover P38
12
ENGINE
NEW RANGE ROVER
46
REPAIR
ROCKER SHAFT - OVERHAUL
Service repair no - 12.29.49 - LH Shaft
Service repair no - 12.29.50 - RH Shaft
Service repair no - 12.29.55 - Both Shafts
Remove
1. Disconnect battery negative lead.
2. Remove relevant rocker cover.
See this
section.
NOTE: If both shafts are to be removed,
identify each assembly to ensure refitment
on original cylinder bank.
3. Remove 4 bolts securing rocker shaft assembly.
4. Remove rocker shaft assembly. Ensure
pushrods remain seated in tappets.
Do not carry out further dismantling if
component is removed for access only.
5. Remove and discard split pin from one end of
rocker shaft.
6. Remove the following components:
NOTE: Retain components in correct
sequence for re-assembly.
7. Plain washer.
8. Wave washer.
9. Rocker arms.
10. Rocker pillars.
11. Springs.
12. Clean all components.
13. Inspect all components for wear.
14. Inspect rocker shaft and bores in rocker arms. If
excessively worn or scored, fit new components.
15. Replace all weak or broken springs.
16. Lubricate all moving parts with clean engine oil.
17. Re-assemble rocker shafts. Ensure that
components are returned to their original
positions, use new split pins to retain
components.
18. Ensure shaft identification groove is positioned
at one o’clock, with pushrod locations of rocker
arms to the right.
CAUTION: Oil feed restriction will result if
rocker shafts are incorrectly assembled.