1991 MITSUBISHI ECLIPSE clutch

CLUTCH - Clutch Release Cvlinder6-13
CLUTCH RELEASE CYLINDER
-‘- REMOVAL AND INSTALLATIONNaaHA--Pre-removal Operation
@Draining of the Clutch Fluid@Supplying of the Clutch Fluid@Bleeding of the Clutch Line (Refer to
@Adjustment of the Clutch Pedal (Re-
2518EL.
113117 Nm
IO-12 ftlbs.08A0004
Removal steps
1. Connection of clutch tube
I)4 2. Clutch release cylinder
NOTE(I) Reverse the removal procedures to reinstall.(2) l * : Refer to “Service Points of Installation”
INSPECTIONNOMCAAl Check the clutch release cylinder for fluid leakage.
l Check the clutch release cylinder boots for damage.
SERVEICE POINTS OF INSTALLATIONNO6HDAJ
2. APPLICATION OF GREASE TO CLUTCH RELEASE
CYLINDERApply grease
\\ :\Apply a coating of multipurpose grease at the contact part
of the release cylinder push rod and the release fork.
Grease: MOPAR Multi-Mileage Lubricant
Part No.2525035 or equivalent

6-14CLUTCH - Clutch Release CylinderDISASSEMBLY AND REASSEMBLY
Post-reassembly Operationl installation of the Clutch ReleaseCylinder (Refer to P.6-13.)

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7
3
2-36CLO37
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3
Disassembly steps
I. Valve plate2. Spring
6
3. Push rod4. Boots
6CLOOlO
*+ l 5. Piston and cup6. Conical spring
7. Cap
8. Bleeder plug
9. Release cylinder
NOTE(1) Reverse the removal procedures to reassemble.(2) W : Refer to “Service Points of Disassembly”.(3) I)4 : Refer to “Service Points of Reassembly”.
rISERVICE POINTS OF DISASSEMBLYNOOLBAE
5. DISASSEMBLY OF PISTON AND CUP(1) Remove the corrosion from the piston-removal port of
the release cylinder.
(2) Remove the piston from the release cylinder using
++,compressed air.
-JCaution
1.Cover with rags to prevent the piston from popping
out.
2.Apply compressed air slowly to prevent brake fluidfrom
splashing.

.-CLUTCH - Clutch Release Cvlinder6-15
\
Piston
@*
CUP6CLOOO3DCLOOE
,
INSPECTIONNWLCAV(1) Check the inner surface of the release cylinder for
scratches or irregular wear.
(2) Replace if the piston cup outer circumference is scratched
or shows signs of fatigue, or if there is excessive wear of
the lip where indicated in the figure.
SERVICE POINTS OF REASSEMBLYNO6LDAB
5. APPLICATION OF FLUID TO PISTON AND CUP
Apply specified brake fluid to the release cylinder inside andouter surface of the piston and piston cup and push the
piston cup assembly in the cylinder.
Specified brake fluid: MOPAR Brake Fluid/Conforming
to DOT3

6-16CLUTCH - Clutch Cover and Disc
CLUTCH COVER AND DISCREMOVAL AND INSTALLATION
Pre-removal Operation
l Removal of the transaxle assembly(Refer to GROUP 21 - Transaxleassembly.)
Post-installation Operation*Installation of the transaxle assem-bly (Refer to GROUP 21 -Transaxleassembly.)35-42 Nm25-30 ft.lbs.\15-22 Nm
11-16
ft.lbs.
6CLOOO4Removal steps
+e l 1. Clutch cover assembly+**a 2. Clutch disc3. Return clipl + 4. Clutch release bearingl * 5. Release fork
6. Fulcrum
7. Release fork boot
FyEeverse the removal procedures to reinstall.(2) 4e : Refer to “Service Points of Removal”.(3) I)4 : Refer to “Service Points of Installation”

CLUTCH - Clutch Cover and Disc647
08A0038
6CLOO3SERVICE POINTS OF REMOVAL
NO6OSAH
1. REMOVAL OF CLUTCH COVER ASSEMBLY/P.
CLUTCH DISCDiagonally loosen bolts which attach clutch cover to
flywheel. Back off bolts in succession, one or two turns at atime, to avoid bending cover flange.
Caution
DO NOT clean clutch disc or release bearing with
cleaning solvent.
INSPECTIONNlNGCAB
CLUTCH COVER ASSEMBLYl Check the diaphragm spring end for wear and uneven
height.
Replace
If wear is evident or height difference exceeds the
limit.Limit
: 0.5 mm (.02 in.)l
Check the pressure plate surface for wear, cracks and color
change.lCheck the strap plate rivets for looseness and replace the
clutch cover assembly if loose.
CLUTCH DISCl
Check the facing for loose rivets, uneven contact, deteriora-tion due to seizure,
adhesron of oil or grease and replace
the clutch disc if defective.
l
Measure the rivet sink and replace the clutch disc if it is outof specification.Limit
: 0.3 mm (.012 in.)l
Check for torsion spring play and damage and if defective,replace the clutch disc.
l Combine the clutch disc with the input shaft and check
sliding condition and check for play in the rotating direction.If it does not slide smoothly, check after cleaning and
reassembling. If the play IS excessive, replace the clutch
drsc and/or the input shaft.
CLUTCH RELEASE BEARING
Caution
The release bearing is packed with grease, so don’t use
cleaning oil, etc. to clean it.l Check for
beanng heat damage, other damage, abnormal
noise and/or improper rotation. Also check whether or not
there IS wear at the point of contact with the diaphragm
spring.lIf there is abnormal wear at the pornt of contact with the
release fork, replace the bearing.
RELEASE FORKlIf there is abnormal wear at the
pornt of contact with the
bearing, replace the release fork.

6-18CLUTCH - Clutch Cover and Disc
I6CLO33
Clutch disc
T& assemblyClutch cover
6CLO26
SERVICE POINTS OF INSTALLATIONNWGDAT
5. A,PPLlCATlONOF GREASE TO RELEASE FORKAi&
(1) Apply a coating of the specified grease to the point of
contact with the fulcrum and the point of contact withi(the release bearing.
Specified grease: MOPAR Multi-mileage Lubricant
Part Nq.2525035 or equivalentCautionWhen installing the
clutch, apply grease to each
part, but be careful not to apply excessive grease;
excessive grease will cause clutch slippage and
shudder.
(2) Apply a coating of the specified grease to the end of therelease cylinder’s push rod and to the push rod hole in
the release fork.
Specified grease: MOPAR Multi-mileage Lubricant
Part No.2525035 or equivalent
4. APPLICATION OF GREASE TO CLUTCH RELEASE
BEARING
Pack the inner surface of the clutch release bearing and thegroove with the specified grease.
L4r
Specified grease: MOPAR Multi-mileage Lubricant _
Part No.2525035 or equivalentCaution
For the release bearing of a resin sleeve, grease mustnot
be applied to the sleeve part.
2. APPLICATION OF GREASE TO CLUTCH DISC/ 1.
CLUTCH COVER ASSEMBLY
(1) Apply a coating of the specified grease to the clutch
disc spline, and then use a brush to rub it in.
Specified grease: MOPAR Multi-mileage Lubricant
Part No.2525035 or equivalent
(2) Using the special tool (clutch disc center guide),
position the clutch disc to the flywheel.
(3) Install the clutch cover assembly. Tighten the bolts a
little at a time, working in a diagonal sequence, finally
tightening them to the specified torque.

COOLING - Troubleshooting7A7
OPERATION
1. When the output of the air conditioner*--control unit is “LO” (OV)(when the
compressor magnet clutch isdeenergized)
l When the ignition switch is at “ON” , and if
engine coolant temperature rises to
85°C
(185”F), the thermosensor contacts close,
causing current to flow through the radiator
fan motor relay (coil), thermosensor and
ground, causing the radiator fan motor relay
contacts to close.
l Current flows through the radiator fan motor
relay contacts, radiator fan motor and ground,causing the radiator fan motor to rotate.
2. When the output of the air conditioner
control unit is “HI” (approx. 12V)(when the
compressor magnet clutch is
energized)l If the therm0 sensor is “ON” when the
engine coolant temperature exceeds
85°C
(185°F). the condenser fan motor control relay
is also “ON”, thus the condenser fan as well
as the radiator fan start rotating at a high
speed.
TROUBLESHOOTING HINTS
1. Neither the radiator fan nor condenser fanrotate at
all.l Check sub fusible link
No.3.
2. Only the condenser fan does not operate.l Check dedicated fuse
No.5.
3. The radiator fan and condenser fan do notoperate
in the low speed mode, but operateotherwise.
(1)The A/C compressor magnet clutch does not
enter the “ON” state.
l Check whether the output of the air con-
ditioner control unit is available.
NOTEFor troubleshooting of the air conditioner
control unit, refer to GROUP 24.
(2)The A/C compressor magnet clutch enters
the “ON” state.
l Check the resistor.Conditions
under which the Air Conditioner Control Unit Outputs a “HI” Signal
Ignition switch (IG2)
Blower switchAir conditioner switch
Compressor magnet clutch
ON
ON
ON
ON
Remarksl If any of the switches and sensors is OFF,
the air conditioner control unit will
output a “LO” signal (OV).
Fan Operating Mode
Switch conditions
Air conditioner switch
Therm0 sensor
LO
(OV)OFFLO
(OV)ONHI
(12V)OFFHI
(12V)ONFan rotating condition
Cooling (radiator) fanCondenser fan
OFFOFF
HIGHOFF
LOWLOW
HIGHHIGH
NOTE
_-The therm0 sensor is ON when the temperature reaches 85°C (185°F) or more.

ENGINE - Crankshaft, Flwvheel and Drive Plate9-71
3EN30’lrrow mark toward
cap No,
I
RING GEAR (Engine with a manual transaxle)Check the ring gear for worn, damaged or broken teeth.
Replace the ring gear if teeth are faulty, and also check the
starter motor pinion.
Ring Gear Replacement Procedure(1) Strike outer circumference of ring gear at several points.
Caution
The ring gear cannot be removed if it is heated.(2) Install the ring gear on flywheel after heating the ring gear
to
260-280°C (500-536°F) for shrink fit.
FLYWHEEL (Engine with a manual transaxle)
(1) Visually check the clutch disc friction surface of flywheel forridge wear, streaks and seizure. Replace as necessary.
(2) If the flywheel
runout exceeds the limit, replace it.
Limit: 0.13 mm (0051 in.)
DRIVE PLATE (Engine with an automatic transaxle)Replace if deformed, damaged or cracked.
SERVICE POINTS OF REASSEMBLY
NOSUDAA
15. INSTALLATION OF UPPER BEARINGWhen reusing the main bearings, install them in their
original positions by referring to location marking made at
the time of removal.
Be sure that oil holes in bearings align with those in cylinder
block.
13. INSTALLATION OF LOWER BEARINGMake sure that a bearing without oil groove is used as
lower bearing.
12. INSTALLATION OF BEARING CAP(1) Install the bearing caps with their arrow mark directed
toward the timing belt side of engine. Cap numbers
must be in correct order.(2) Tighten cap bolts in the sequence of center,
No.2,
No.4. front and rear cap bolts.
(3) Cap bolts should be tightened evenly in 2 to 3 steps
before they are finally tightened.
(4) Make certain that the crankshaft turns freely and has a
proper end play by checking the clearance between
center main bearing thrust flange and connecting rod
big end bearing.
Crankshaft end play:
0.05-0.18 mm (.0020-.0071 in.)
Limit:0.25 mm (.0098 in.)