Mitsubishi Lancer Evolution 7. Manual — part 12
2-1
POWER TRAIN
CONTENTS
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Description of Structure and Operations
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POWER TRAIN -
Clutch
2-2
CLUTCH
SPECIFICATIONS
Items
Specifications
Engine model
4G63-DOHC-Intercooler Turbocharger
Clutch disc type
Dry single plate type
Clutch disc facing diameter O.D.×I.D. mm
240×160
Clutch cover type
Diaphragm spring pull type
Clutch cover set load N
9,320 ± 750
Control system
Hydraulic type
Release cylinder I.D. mm
20.64
Master cylinder I.D. mm
15.87
Clutch fluid
Brake fluid DOT 3 or DOT 4
CLUTCH CONTROL CONFIGURATION
Master cylinder member assembly
Reservoir hose
Clutch pipe
Clutch master cylinder
Clutch pedal
<L.H.drive vehicles>
Clutch release
cylinger
Clutch hose
<R.H.drive vehicles>
Master cylinder member assembly
Reservoir hose
Clutch pipe
Clutch master cylinder
Clutch pedal
Clutch release cylinger
Clutch hose
Clutch pipe
POWER TRAIN - Manual Transmission
2-3
MANUAL TRANSMISSION
The manual transmission is a W5M5 transmission. This transmission incorporates the following changes
from the F5M4 type transmission mounted to GALANT.
D
With the incorporation of 4WD, the center differential has been positioned at the front differential
of the 2WD, and the front differential has been positioned inside the transfer.
D
The kinetic performance has been improved by setting a helical gear LSD for the front differential.
<RS, RS II: Option>
D
With the adoption of the active center differential (ACD), an hydraulic multi plate clutch has been
adopted for the transfer limited slip differential. <RS, RS II: Option> (Refer to P.2-17 for details
of the hydraulic multi plate clutch.)
SPECIFICATIONS
Item
Specifications
Classification
RS, RS II
RS, RS II (Super cross gear specifications)
Transmission type
W5M51
Engine type
4G63-DOHC-T/C
Transmission type
5 steps forward, 1 step reverce, always in contact)
Gear ratio
1st
2.785
←
2nd
1.950
←
3rd
1.407
1.444
4th
1.031
1.096
5th
0.720
0.825
Reverse
3.416
←
Final deceleration ratio
4.529
←
Helical gear LSD (Front differential)
No
Yes
Transfer
Deceleration ratio
3.307
←
Limited slip differential
VCU or hydraulic multi
plate clutch (ACD)
←
POWER TRAIN - Manual Transmission
2-4
SECTIONAL VIEW
W5M51 <Vehicle with VCU>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
19
20
18
1. 4th gear
2. 3rd - 4th synchronizer
3. 3rd gear
4. Transmission case
5. Clutch housing
6. Clutch release bearing retainer
7. Input shaft
8. Output shaft
9. Front differential
10. Viscous coupling unit (VCU)
11. Transfer cover
12. Hypoid pinion
13. Center differential
14. 1st gear
15. 1st - 2nd synchronizer
16. 2nd gear
17. 5th gear
18. 5th - reverse synchronizer
19. Reverse gear
20. Reverse idler gear
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