Mitsubishi Evolution X. Manual — part 202
CYLINDER HEAD AND VALVES
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ENGINE OVERHAUL
11B-55
REPLACEMENT PROCEDURE OF VALVE GUIDE
1. Pull out the valve guide with a press toward the cylinder
block side.
2. Ream the valve guide hole of the cylinder head to match it
with the diameter of the oversize valve guide to be press
fitted.
CAUTION
Do not use a valve guide with the same size as that of the
pulled out valve guide because it cannot be press fitted.
Valve guide bore diameter
0.25 O.S.: 11.23
− 11.25 mm (0.442 − 0.443 inch)
AK703735AC
14.6 – 15.2 mm
(0.57 – 0.60 in)
3. Press fit the valve guide to the illustrated dimension.
Standard value: 14.6
− 15.2 mm (0.57 − 0.60 inch)
NOTE: Press fit the valve guide from the cylinder head top
surface.
4. After pressing fit the valve guide, insert a new valve to check
for sliding.
OIL PUMP CHAIN
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ENGINE OVERHAUL
11B-56
OIL PUMP CHAIN
REMOVAL AND INSTALLATION
M1113033700107
AK702225
26 ± 1 N·m
19 ± 1 ft-lb
26 ± 2 N·m
19 ± 1 ft-lb
23 ± 2 N·m
17 ± 1 ft-lb
54 ± 5 N·m
40 ± 3 ft-lb
32 ± 2 N·m
24 ± 1 ft-lb
10 ± 2 N·m
89 ± 17 in-lb
10 ± 2 N·m
89 ± 17 in-lb
10 ± 2 N·m
89 ± 17 in-lb
Apply engine oil to
all moving parts
before installation.
40 N·m
30 ft-lb
130 N·m
96 ft-lb
→
40 N·m
30 ft-lb
130 N·m
96 ft-lb
→
1
2
3
4
11
8
12
7
AC
10
13
15
6
5
14
17
16
9
Removal steps
1. Silicon ring <TC-SST>
<<A>> >>E<<
2. Flywheel bolt <TC-SST>
3. Flywheel hub <TC-SST>
4. Flywheel <TC-SST>
<<A>> >>E<<
5. Flywheel bolt <M/T>
6. Flywheel <M/T>
>>D<<
7. Rear oil seal
8. Oil pump chain guide
9. Oil pump tensioner lever
>>C<<
10. Oil pump chain
<<B>> >>C<<
11. Oil pump sprocket
12. Oil pump case
>>B<<
13. Crankshaft sprocket
14. Oil cooler by-pass valve
<<C>> >>A<<
15. Ladder frame
16. Check valve
17. Oil jet
Required Special Tools:
• MB991346: Top Cover Wrench
• MB991883: Flywheel Stopper
Removal steps (Continued)
OIL PUMP CHAIN
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ENGINE OVERHAUL
11B-57
REMOVAL SERVICE POINTS
.
<<A>> DRIVE PLATE BOLT / FLYWHEEL BOLT
REMOVAL
AK703300
MB991883
AC
1. Use special tool MB991883 to secure the drive plate or
flywheel.
2. Remove the drive plate bolts or flywheel bolts.
.
<<B>> OIL PUMP SPROCKET REMOVAL
AK703732AC
MB991346
Oil pump sprocket
Fix the oil pump sprocket with a special tool MB991346, loosen
a center bolt, and remove the oil pump sprocket.
.
<<C>> LADDER FRAME REMOVAL
AK502755AF
1. Pry the illustrated position with a screwdriver.
AK502756
2. If the ladder frame does not come off, insert a flat blade
screwdriver into the gap between the ladder frame and
bearing cap as shown in the illustration and lightly pry it to
remove the ladder frame.
OIL PUMP CHAIN
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ENGINE OVERHAUL
11B-58
INSTALLATION SERVICE POINTS
.
>>A<< LADDER FRAME INSTALLATION
CAUTION
Be sure to remove liquid gasket that has entered mounting
holes.
1. Completely remove liquid gasket adhering to the cylinder
block and ladder frame.
CAUTION
Sufficiently check that there is no residual oil on the place
where degreasing is performed. If fingerprints are left, do
not touch it with bare hands after the degreasing, since the
oils from your fingers will harm the seal ability.
2. Using white gasoline and so on, degrease the surface where
the liquid gasket is applied and the contact surface between
the cylinder block and ladder frame.
AK702198AC
A
-A
A
A
A
3.0 mm (0.12 in)
0 – 2.0 mm
(0 – 0.08 in)
1.0 mm (0.04 in)
3. Squeeze liquid gasket (Three bond 1217G [Mitsubishi
Genuine Part No.1000A923] or equivalent) of
φ2.0 to 3.0 mm
(0.08 to 0.12 inch) in thickness and apply it to the illustrated
position of the ladder frame.
AK702199AC
4
1
1
3
3
2
2
6
4
3
5
5
6
4. Tighten the ladder frame to the specified torque in the order
shown in the illustration.
Specified torque: 26
± 1 N⋅ m (19 ± 1 ft-lb)
.
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