Range Rover P38
12
ENGINE
NEW RANGE ROVER
42
REPAIR
Oil pressure relief valve
14. Using a suitable mandrel, depress sleeve and
remove circlip.
WARNING: Sleeve is under strong spring
pressure, suitable eye protection must be
worn.
15. Gradually release spring pressure, remove
sleeve, spring and piston.
16. Remove and discard ’O’ ring.
17. Clean all components, check piston, sleeve and
relief valve bore for damage, scoring and signs
of wear.
18. Check relief valve spring free length:
Free length = 84.1 mm (3.3 in)
19. Renew relief valve as an assembly.
Oil pump and oil pressure relief valve -
assembling
20. Lubricate all components with engine oil.
21. Fit a new ’O’ ring to sleeve.
22. Insert piston, spring and sleeve into relief valve
bore, depress sleeve and fit circlip.
WARNING: Suitable eye protection must
be worn.
23. Check that circlip is correctly seated in groove.
24. Insert rotors into pump ensuring that square
identification marks are toward cover.
25. Fit cover plate ensuring reference marks are
aligned.
26. Fit 4 screws ensuring special screw is in its
original location, tighten screws to
20 Nm (15
lbf.ft).
27. Fit flanged bush ensuring that flange is on cover
plate side of pump.
28. Position new seal to oil pick-up pipe, fit pipe.
29. Fit 2 bolts and tighten to
10 Nm (7 lbf.ft).
30. Fit oil pump.
See this section.