Defender 90 NAS. Manual — part 16
4.0 V8
7
REPAIR
12. Loosen clip screws securing heater return and
feed hoses to pipes and disconnect.
13. Position cloth to collect fuel spillage.
14. Loosen fuel feed hose to rail union, allow fuel to
spill and disconnect union.
15. Loosen clip screw securing fuel return hose to
fuel rail and disconnect hose.
CAUTION: Plug the connections.
16. Remove cloth.
17. Remove plenum.
See FUEL SYSTEM, Repair,
plenum chamber
18. Remove bolt securing 2 breather pipe ’P’ clip to
rear of RH cylinder head.
19. Loosen clip screw securing intake hose to MAF
sensor housing and remove hose.
20. Remove nut securing kick-down cable clip to
rear of LH cylinder head.
21. Remove 3 cable ties securing purge pipe to
coolant hose and harness, position pipe aside.
22. Disconnect brake servo pipe from inlet manifold
and position aside.
12
ENGINE
8
REPAIR
23. Remove 3 bolts securing PAS pulley and
remove pulley.
24. Release knock sensor harness clip from PAS
return hose.
25. Remove 3 bolts securing PAS pump and
position aside.
26. Collect engine lifting bracket.
27. Position engine lifting bracket and secure with 3
(3/8’’ UNC x 1’’ MAX) bolts.
28. Raise vehicle on ramp.
29. Remove 6 nuts securing exhaust front pipe to
manifolds.
30. Remove front bolt securing RH catalyst heat
shield to chassis.
31. Remove bolt securing starter motor heat shield
to RH engine mounting bracket.
32. Release starter motor heat shield clip from
solenoid.
33. Release exhaust front pipe from manifold studs
and remove and discard gaskets.
34. Remove starter motor heat shield.
4.0 V8
9
REPAIR
35. Remove starter motor solenoid terminal nut.
36. Release 2 battery leads from terminal.
37. Disconnect solenoid Lucar.
38. Disconnect multiplug from RH Knock sensor.
39. Remove 2 cable ties securing engine harness to
RH engine mounting bracket.
40. Disconnect multiplug from LH knock sensor.
41. Remove cable tie securing engine harness to LH
engine mounting bracket.
42. Remove screw securing crankshaft position
sensor heat shield and remove heat shield.
43. Disconnect multiplug from crankshaft position
sensor.
44. Remove bolt securing gearbox cooler pipes to
engine sump bracket.
45. Remove 7 bolts securing bell housing closing
plate and remove plate.
46. Remove 3 bolts securing bell housing access
plate and remove plate.
12
ENGINE
10
REPAIR
47. Mark relationship between converter and drive
plate.
48. Rotate crankshaft to access drive plate to
converter retaining bolts.
49. Remove 4 bolts securing drive plate to
converter.
50. Fit suitable piece of wood through bell housing
access hole to retain converter.
51. Remove 2 bell housing lower retaining bolts.
52. Remove nut securing RH engine mounting to
chassis bracket.
53. Remove nut securing LH engine mounting to
chassis bracket.
54. Lower vehicle.
55. Loosen clip screw and disconnect radiator
bottom hose from heater pipe.
56. Disconnect multiplug from camshaft position
sensor.
57. Disconnect Lucar from oil pressure switch.
58. Release harness from front of engine.
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