Mitsubishi Lancer Evolution X. Manual — part 621
CLUTCH RELEASE CYLINDER
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CLUTCH OVERHAUL
21B-7
2. Measure the rivet sink. Replace the clutch disc if it is below
the limit.
Minimum limit: 0.3 mm (0.012 inch)
3. Check the torsion spring for play and damage. If defective,
replace the clutch disc.
4. Place the clutch disc on the input shaft and check for sliding
condition and play in the rotating direction. If poor sliding
condition is evident, clean, reassemble, and recheck.
If excessive play is evident, replace the clutch disc and/or
input shaft.
CLUTCH RELEASE CYLINDER
DISASSEMBLY AND ASSEMBLY
M1212001500595
AKX00764AG
Rivet sink
Torsion spring
AK702336
AC
1
4
5
6
7
9
8
10
11
12
13
2
3
22 ± 2 N·m
16 ± 1 ft-lb
11 ± 1 N·m
97 ± 8 in-lb
DISASSEMBLY STEPS
1. Cap
2. Air breather
3. Union bolt
4. Union
5. Gasket
>>B<<
6. Valve plate
>>B<<
7. Valve plate spring
8. Push rod
9. Boot
<<A>> >>A<<
10. Piston
<<A>> >>A<<
11. Piston cup
12. Conical spring
13. Release cylinder
DISASSEMBLY STEPS
CLUTCH RELEASE CYLINDER
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CLUTCH OVERHAUL
21B-8
DISASSEMBLY SERVICE POINT
.
<<A>> PISTON / PISTON CUP REMOVAL
CAUTION
Covering with a shop towel or the like, apply compressed
air slowly to prevent the piston from popping up and brake
fluid from splashing.
Using compressed air, remove the piston assembly from the
release cylinder.
ASSEMBLY SERVICE POINT
.
>>A<< PISTON CUP / PISTON INSTALLATION
1. Apply brake fluid to the entire inner surface of the release
cylinder.
Specified brake fluid: Brake fluid DOT 3 or DOT 4
2. Apply grease to the piston and piston cups and insert the
piston assembly into the release cylinder.
Specified grease: Rubber grease
.
AK102083
AK704100AC
AK203875 AE
Piston
Piston cup
CLUTCH RELEASE CYLINDER
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CLUTCH OVERHAUL
21B-9
>>B<< VALVE PLATE SPRING / VALVE PLATE
INSTALLATION
Install the valve plate spring and valve plate into place with the
large end of the spring to the valve plate side.
INSPECTION
M1212001600387
.
RELEASE CYLINDER
1. Check the bore of the release cylinder for rust, scratches or
damage.
2. Using a cylinder gauge, measure the inside diameter of the
release cylinder at about three positions (the deepest,
middle and brim positions). If the clearance from the outside
diameter of the piston exceeds the limit, replace the release
cylinder as an assembly.
Limit: 0.15 mm (0.006 inch)
AK201696AH
Valve plate spring
Release cylinder
Valve plate
NOTES
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