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8Notice:Due to the small end play on camshaft, the cylinder head may be damaged by the thrust force when removingit, it may stuck or damage camshaft. Take the following steps to avoid damage: (1) Turn the crankshaft pulley to make exhaust camshaft dowel pin is a bit higher than the cylinder head. See(Figure 15). (2) Align the matchmark on each gear to engage intake camshaft gear and exhaust camshaft gear. See(Figure 16).
(3) When the gears are engaged, install the intake camshaft bearing onto bearing journal.
Hint:
The intake camshaft lobe of cylinder 1 and 3 can jack up their own valve tappet.
(5) Install 4 bearing caps to the right position.
(6) Apply a light layer of engine oil on the thread and under the head of bearing cap bolts.
(7) Uniformly install and tighten 8 bearing cap bolts in several times, in the sequence shown in the figure.
Torque: 13N. m
(8) Remove service screw.
(9) Install the bearing cap No. 1. in the direction of the forward arrow mark.
(10)Apply a light layer of engine oil on the thread and under the head of bearing cap bolts.
(11)Alternatively tighten and install 2 bearing bolts.
Torque: 13N. m
7. Adjust exhaust valve clearance. See (Figure 17)
Remove adjust gasket.
(1) Crank to keep the camshaft head upward.
(2) Face valve tappet nick to vehicle front. (3) Press valve tappet, put special tool between camshaft and valve tappet.Hint:
zLean the end with mark "9" into the position in (Figure 18).Figure 15Install MarkTiming MarkMarch MarkCam LobeUpward
NickFrontFigure 17
Figure 18 Figure 16
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9(4) Alternatively press valve tappet with the special tool (A) (B). Check
valve clearance. See (Figure 19).
8. Install cylinder head sub-assembly
(a) Remove all old gasket material.
(b) Apply the seal glue to the cylinder head.
(c) Connect wire harness and clip.
(d) Install gasket under of cylinder head.
(e) Install the cylinder head cover with 4 seal gaskets and 4 screw caps.
Torque: 7.8N. m
(f) Install 2 ventilation hoses to cylinder head cover.
(g) Connect generator wire joint.
(h) Connect generator wires.
(i) Connect oil pressure switch connector.
(j) Install wire clip.
(k) Connect A/C compressor switch connector.
9. Install electronic ignition coil and high voltage cable
10. Check engine oil for leakage
Figure 19
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10Chapter 2 Engine Components Replacement
(MR479Q, MR479QA, MR481QA)Section 1 Engine ComponentsComponent 1Air Filter Assembly W/ Hose
Accelerator Control
Cable Assembly
Heater Inlet Hose
Heater Outlet Hose
Fuel Sub-Assembly
Efi Fuel Pipe Clamp
MT:
Transmission
Control Cable
Assembly
AT :
Transmission Control Cable Assembly MT:
Clutch Release
Cylinder Assembly
Radiator Outlet Pipe Radiator Inlet Pipe
Starter AssemblyAT: Oil Cooler Outlet Pipe
AT: Oil Cooler Inlet Pipe
Radiator Assembly
BatteryFront Exhaust
Pipe Assy.3-way catalytic
converterMufflerTail PipeFigure 20
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11Component 2Figure 21Fan & Generator V-Belt
Vane-Type Pump V-Belt (V/ Power Steering)
V-Belt No.1Right Engine
Mounting InsulatorDoor AssemblySteering Column
AssemblyFront Shaft Hub Left NutLeft Front Speed Sensor Left Engine Mounting Bracket Steering Column Hole CoverHole Cover Steering Column Glove Compartment Front exhauxt pipe assembly
GasketGasket
One-off accessory
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13Section 2 Engine Components Replacement1. Avoid gasoline ejection when work.
2. Drain the coolant to empty.
3. Remove air filter assembly with hose. See (Figure 23)
4. Remove battery
5. Remove fuel delivery pipe sub-assembly
6. Disconnect water hoses, disconnect heater outlet hose
from A/C hose.
7. Loose nut, remove accelerator control cable
8. Remove throttle body assembly
9. Remove power steering pump reservoir assembly
10. Remove front exhaust pipe assembly
11. Remove steering gear boot
12. Seperate steering column assembly. See (Figure 24)
13. Remove front wheel hub nut
14. Disconnect front wheel vehicle speed sensor (with ABS)
15. Detach steering tie rod ball stud pin assembly
16. Detach front lower swing arm sub-assembly
17. Detach front propeller assembly. See (Figure 25)
Detach front propeller from the shaft hub with plastic hammer.
18. Disconnect transmission shift cable or gear shift level assembly
19. Disconnect clutch cylinder assembly or disconnect clutch cable
20. Detach engine assembly and transaxle
(a) Hoisting engine ;
(b) Remove 3 bolts. Detach the right engine mounting bracket. See (Figure 26) ;
(c) Remove 1 bolt. Detach the left engine mounting bracket;
(d) Remove 1 bolt. Detach the rear engine mounting bracket;
(e) Remove engine and transaxle and put them on the pallet;
(f) Jack up the boday.Figure 23
Figure 24
Figure 25 Figure 26
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1421. Remove radiator assembly
22. Remove engine V-belt
23. Remove No. 1 V- belt (A/C compressor to crankshaft pulley)
24. Remove generator assembly
25. Remove A/C compressor
26. Remove compressor installing No. 1 bracket. Remove 4 bolts and compressor installing No.
1 bracket.
27. Remove starter assembly
28. Remove power steering pump V- belt
29. Detach power steering pump assembly
30. Remove power steering pump, adjust the bracket
31. Detach manual transaxle assembly (Separate automatic transaxle assembly)
32. Detach clutch cover panel assembly.
33. Detach clutch pressure plate assembly.
34. Detach flywheel sub-assembly.
35. Remove engine rear end cover.
36. Remove injector assembly and remove intake manifold.
Remove 2 bolts and intake manifold support and remove 7 bolts,
2 nuts, intake manifold and gasket. See (Figure 27).
37. Remove knock sensor
38. Remove water temperature gauge sensor
39. Remove crankshaft position sensor
40. Remove engine oil pressure switch
41. Remove water inlet hose housing
42. Remove water outlet hose joint
43. Detach exhaust manifold. See (Figure 28)
44. Remove engion oil filter sub-assembly
45. Remove ignition coil and high voltage cable
46. Install engine sub-assembly
47. Install ignition coil and high voltage cable
48. Install engine oil filter sub-assembly
49. Install exhaust manifold
(a) Install new gasket and exhaust manifold stay with
5 nuts, Torque: 34N. m
(b) Install exhaust manifold stay with two bolts.
Torque: 59N. m
(c) Install upper heat shield with 4 bolts.Torque: 17N. mFigure 27
Figure 28
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1550. Install water outlet hose joint. See (Figure 29, 30)
Figure 29
51. Install water inlet hose housing. See (Figure 31, 32)
Figure 31 Figure 32
52. Install engine oil pressure switch
53. Install crankshaft position sensor
Torque: 9, 3N. m
54. Install water temperature gauge and water temperature sensor
Torque: 15N. m
55. Install knock sensor
Torque: 44N. M
56. Install intake manifold. See (Figure 33)
Install the intake manifold with new gasket with 7 bolts and 2
nuts. Uniformly tighten bolts and nuts in several time.
57. Install injector assembly
58. Install rear end cover
59. Install flywheel sub-assembly. See (Figure 34)
(a) Install flywheel to crankshaft.
(b)Install and uniformly tighten and connect bolt as shown in the
figure. Torque: 78N. m
60. Install clutch assembly
61. Install flywheel and ring gear. See (Figure 35)
(a)Install the oil thrower, it’s chamfer side on crankshaft in
the axie direction.
(b) Install flywheel and ring gear on crankshaft.Figure 33
Figure 34 Figure 30
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16(c) Install and uniformly tighten connecting bolt in the sequence shown inthe figure.
Torque: 64N. m
62. Install manual transaxle assembly
63. Install starter assembly
64. Install power steering pump bracket
65. Install power steering pump adjusting bracket with 2 bolts.
66. Connect power steering pump assembly
67. Install engine assembly and transaxle
68. Connect left, right, front and rear lower suspension arm sub-assembly
69. Connect left and right tie rod ball stud pin assembly
70. Connect left, right and front vehicle speed sensor (with ABS)
71. Install left & right nuts on the front shaft hub
72. Install front exhaust pipe assembly
73. Connect steering shaft assembly and steering column hole cover. See (Figure 36)
74. Connect wire harness
75. Install belt adjusting bracket of A/C compressor
76. Connect A/C compressor
77. Install generator assembly
78. Install A/C compressor to crankshaft pulleyV-belt
79. Install generator belt
80. Install engine assembly with transaxle
81. Install radiator assembly
82. Install throttle body assembly
83. Install fuel delivery pipe sub-assembly
84. Install battery
85. Install air filter assembly with hose
86. Install front wheel
87. Fill engine oil
88. Fill coolant
89. Check engine oil for leakage
90. Check engine coolant for leakage
91. Check fuel for leakage
92. Check idle and ignition timing
93. Check CO/HC
94. Check and adjust front wheel alignment
95. Check ABS vehicle speed sensor signalFigure 35
Figure 36