Page 137 of 873

4.0 V8
1
REPAIR CRANKSHAFT PULLEY
Service repair no - 12.21.01 - Crankshaft Pulley
Remove
1.Disconnect battery negative lead.
2.Remove cooling fan.
See COOLING SYSTEM,
Repair, Viscous Coupling, Fan Blades,
Pulley and Fan Cowl
3.Slacken 3 water pump pulley securing bolts.
4.Remove drive belt.
See ENGINE 3.9 V8,
Repair, Drive Belt Renew
5.Remove water pump pulley bolts. Remove water
pump pulley.
6.Raise and support front of vehicle.
7.Remove 9 bolts securing bell housing access
cover (2 dowel bolts).
8.Remove access plate.
NOTE: It will be necessary to have an
assistant position a large flat ended
screwdriver between ring gear and adaptor
plate to prevent ring gear rotating.
9.Remove crankshaft pulley bolt. Collect pulley
and tool.
Refit
10.Clean seal running surface on pulley.
11.Clean key and keyway.
12.Fit crankshaft pulley.
NOTE: It will be necessary to have an
assistant position a large flat ended
screwdriver between ring gear and adaptor
plate to prevent ring gear rotating.
13.Refit crankshaft pulley bolt. Tighten to
270 Nm.
14.Ensure mating faces between bell housing
access cover and mating face are clean.
15.Fit access cover.
16.Fit cover bolts. Tighten to
10 Nm.
17.Remove supports and lower vehicle.
18.Ensure mating faces between water pump pulley
and pump are clean.
19.Refit water pump pulley. Fit bolts finger tight.
20.Fit drive belt.
See ENGINE 3.9 V8, Repair,
Drive Belt Renew
21.Tighten water pump pulley bolts to Tighten to24
Nm.
22.Refit cooling fan.See COOLING SYSTEM,
Repair, Viscous Coupling, Fan Blades,
Pulley and Fan Cowl
23.Reconnect battery negative lead.
Page 140 of 873

12ENGINE
4
REPAIR 39.Release battery positive lead terminal cover.
40.Remove terminal nut
41.Release terminal from battery.
42.Release fusebox main feed lead.
43.Position battery cable over engine.
44.Pivot jockey pulley downwards to release drive
belt tension.
45.Release belt from pulleys.
46.Remove drive belt.
47.Disconnect compressor multiplug
48.Remove 4 bolts securing compressor.
49.Remove heatshield.
50.Release compressor from bracket and tie aside.
51.Slacken clip securing PAS hose to pump.
52.Disconnect hose.
53.Plug hose and pump.
54.Disconnect PAS hose connection at pump and
steering box.
55.Release unions and remove hose.
56.Remove and discard 'O' rings.
57.Plug pump and steering box.
58.Remove LH and RH engine mounting nuts.
59.Position lifting chains and attach hooks to engine
lifting eyes.
60.Raise engine sufficiently to release engine
mountings.
61.Release engine mountings and remove.
62.Lower engine until it just rests on engine
mounting brackets.
63.Disconnect chains.
64.Raise ramp.
65.Remove catalytic converter/front pipe assembly.
See EMISSION CONTROL, Repair, Catalytic
Converter/Front Pipe - 4.0 V8
66.Remove 9 bolts securing bell housing bottom
cover. Note position of 2 dowel bolts.
67.Remove cover.
68.Remove locknut securing transfer box tie bar.
69.Remove 2 bolts securing tie bar to tranmission.
70.Remove tie bar.
71.Remove 2 and slacken 1 bolt, securing bell
housing access plate and position aside.
72.Mark drive plate to torque converter relationship.
73.With assistance, rotate crankshaft for access to
first bolt (torque converter to drive plate).
74.Remove first bolt.
75.Repeat steps for the remaining 3 bolts.
76.Remove 2 bolts securing crankshaft sensor
shield to engine backplate.
See FUEL SYSTEM
SFI, Repair, Crankshaft Position Sensor
(CKP Sensor)
Page 144 of 873

12ENGINE
8
REPAIR
9.Disconnect multiplug from camshaft sensor.
See FUEL SYSTEM SFI, Repair, Camshaft
Position Sensor (CMP Sensor)
10.Remove 9 bolts securing front cover.
11.Remove 2 bolts securing sump to front cover.
12.Loosen 4 bolts securing sump adjacent to front
cover (2 each side).
13.Release front cover assembly.
14.Remove oil seal.
15.Remove and discard gasket.Refit
16.Clean sealant from threads of cover bolts.
17.Clean old sealant from front cover and block joint
face.
CAUTION: Use a plastic scraper.
18.Apply Hylosil jointing compound to gasket
position on cover and block.
19.Fit new gasket to block face.
20.Ensure oil seal register in cover is clean.
21.Lubricate outer face of NEW oil seal.
22.Using LRT-12-089, fit seal to cover.
23.Lubricate oil pump drive gear and position in
pump with groove away from engine.
24.Locate alignment tool LRT-12-090 on front cover
and oil pump drive gear.
25.Position front cover over crankshaft.
26.Press and rotate tool to engage drive gear until
drive gear keyway aligns with Woodruff key.
27.Fit cover to cylinder block.
Page 152 of 873
12ENGINE
2
DESCRIPTION AND OPERATION The aluminium alloy, tin coated pistons have two
compression and an oil control ring and are secured
to the connecting rods by semi-floating gudgeon pins
which are an interference fit in the small-end bush.
Gudgeon pins are offset towards the thrust side of the
pistons to reduce frictional drag.
Plain, big-end bearing shells are fitted to each
connecting rod.The internally toothed timing belt is driven from a gear
which is keyed to the crankshaft, belt tension being
controlled by a semi-automatic tensioner.
The trochoidal type oil pump is mounted on the front
of the engine and carries the crankshaft front oil seal.
Drive to the pump is via a Woodruff key inserted in the
crankshaft.
Page 154 of 873

12ENGINE
4
DESCRIPTION AND OPERATION CYLINDER BLOCK COMPONENTS
1. Cylinder block
2. Knock sensor
3. Crankshaft sensor
4. Bolt - crankshaft sensor
5. Locating dowel - cylinder head
6. Bolt - connecting rod
7. Piston
8. Piston ring - top compression
9. Piston ring - 2nd compression
10. Piston ring - oil control
11. Gearbox adapter plate
12. Bearing shell - big end - upper
13. Flywheel
14. Bolt - flywheel
15. Torx screw - gearbox adapter plate
16. Blanking plate
17. Bolt - blanking plate
18. Gasket
19. Bolt - crankshaft rear oil seal housing
20. Crankshaft rear oil seal and housing
21. Bolt - coolant pump cover
22. Coolant pump cover
23. Impeller
24. Sealing rings
25. 'O' ring
26. Bolts - coolant pump
27. 'O' ring
28. Coolant pump body
29. Thrust washer halves - upper
30. Bearing shell - main bearing - upper
31. Locating dowel - oil pump
32. Locating dowel - flywheel
33. Gudgeon pin34. Crankshaft
35. Bearing shell - big end - lower
36. Bearing cap - big end
37. Nut - big end bearing cap
38. Locating dowel - main bearing cap
39. Bearing caps - main bearings
40. Bolt - main bearing cap
41. Thrust washer halves - lower
42. Bearing shell - main bearing - lower
43. Woodruff keys
44. Dipstick
45. Bolt - dipstick tube
46. Dipstick tube
47. Bolts - sump
48. Gasket - sump
49. 'O' ring
50. Oil strainer
51. Bolts - oil strainer
52. Sump
53. Washer - drain plug
54. Drain plug
55. Oil filter element
56. Crankshaft front oil seal
57. Bolts - oil pump
58. Gasket - oil pump
59. Oil pump
60. Oil pressure switch
61. Crankshaft spigot bush
62. Crankshaft spigot bearing
63. Locating dowel - coolant pump
64. Connecting rod
65. Bolts belt tensioner mounting plate
66. Belt tensioner mounting plate
67. Bolt - gearbox adapter plate
Page 162 of 873
12ENGINE
4
REPAIR CRANKSHAFT FRONT OIL SEAL
Service repair no - 12.21.14
Remove
1.Remove timing belt.
See Camshaft Drive Belt
2.Slide timing gear off crankshaft and remove
drive key.
3.Ensure bore of tool is burr free, fit and tighten
tool LRT-12-073 into crankshaft front oil seal.
4.Using thrustpad, tighten centre screw of tool to
remove oil seal.
5.Remove thrust button from crankshaft.
Refit
1.Use lint free cloth and thoroughly clean seal
recess and running surface on crankshaft. Clean
crankshaft gear and pulley.
2.Lubricate oil seal sealing surfaces with engine
oil.
3.Fit tool LRT-12-070 onto crankshaft.
4.Position new oil seal on crankshaft, drift into
place using LRT-12-069 and remove protector.
5.Fit drive key to crankshaft and slide timing gear
onto crankshaft.
6.Fit and tension timing belt.
See Camshaft
Drive Belt
Page 256 of 873
19FUEL SYSTEM
10
REPAIR
KEY
1. Spherical bush/housing
2. Retaining clips (2)
3. Countershaft assembly
4. Overtravel spring
5. Throttle shaft nut
6. Throttle return spring (2)
7. Tab washer
8. Throttle stop lever
9. Throttle bracket assembly
10. Pop rivets (2)
Page 264 of 873
19FUEL SYSTEM
18
REPAIR FUEL PIPES
Service repair no - 19.40.92
WARNING: Depressurise fuel system.See
Depressurise Fuel System
before
disconnecting any fuel pipes ensure that
all necessary precautions are taken against fuel
spillage
WARNING: Ensure fuel handling
precautions given in Section 01 -
introduction are strictly adhered to when
carrying out following instructions.
KEY
1. Fuel feed hose to fuel rail.
2. Fuel return hose to fuel tank.
3. Rigid fuel feed pipe.
4. Rigid fuel return pipe.
5. Fuel filter.6. Rigid fuel feed pipe to filter.
7. Breather hose.
8. In-tank fuel pump.
9. Fuel filler neck.
10. Fuel tank.