1998 ISUZU TROOPER clutch

7C±6CLUTCH
Driven Plate Assembly
(6VE1)
A07RS007

CLUTCH7C±7
(4JX1)
A07RW045

7C±8CLUTCH
Diagnosis
ConditionPossible causeCorrection
DraggingFluid leakage.Repair
Air in hydraulic line.Bleed
Master cylinder and slave cylinder
seals worn. Replace master cylinder.
Replace slave cylinder seals.
Driven plate warped.Replace driven plate.
Diaphragm spring weakened or tip of
fingers worn. Replace pressure plate
Driven plate sticking on splines.Lubricate with grease or replace.
Clutch spline worn. Repair
Release bearing worn or damaged.Replace release bearing.
SlippingDriven plate facing worn or
oil±soaked.Replace driven plate and check for
leaks.
Diaphragm spring weakened.Replace pressure plate.
Pressure plate or flywheel warped.Correct or replace.
Master cylinder and slave cylinder
seals worn.Replace master cylinder.
Replace slave cylinder seals.
ChatteringEngine mounts loose or damaged.Tighten or replace.
Driven plate facing warped.Replace driven plate.
Surface of facing hardened.Replace driven plate
Driven plate facing oil soaked. Replace driven plate and check for
leaks.
Damper springs weakened or
broken. Replace.
Pressure plate or flywheel warped.Correct or replace.
NoisyReplace bearing binding.Correct, or replace if damaged, and
lubricate.
Replace bearing worn or damaged. Replace release bearing.
Release bearing poorly lubricated. Lubricate.
Pilot bearing worn.Replace pilot bearing.
Damper springs weakened or
broken.Replace driven plate.
Rivets of driven plate exposed.Replace driven plate.
Replace driven plate.Hydraulic line blocked.Clean out or replace.
Master or slave cylinders binding.Repair or replace as needed.

CLUTCH7C±9
Clutch Assembly
Clutch Assembly and Associated Parts
201RW029
Legend
(1) Flywheel Assembly and Crankshaft Bearing
(2) Driven Plate Assembly (6VE1)
(3) Driven Plate Assembly (4JX1)
(4) Pressure Plate Assembly (5) Transmission Assembly
(6) Front Cover
(7) Shift Fork
(8) Release Bearing
Removal
1. Remove transmission assembly, refer to ºMANUAL
TRANSMISSIONº of Section 7B for ºRemoval AND
INSTALLATIONº procedure.
2. Mark the flywheel, clutch cover and pressure plate lug
for alignment when installing.
3. Remove pressure plate assembly (3).
4. Remove driven plate assembly (1) or (2). Use the pilot
aligner 5-85253-001-0 (J-24547) to prevent the
driven plate assembly from falling free.
201RW031

7C±10CLUTCH
5. Mark the flywheel, clutch cover and pressure plate lug
for alignment when installing.
6. Remove the release bearing (3) from the
transmission case .
7. Remove the shift fork snap pin.
8. Remove the shift fork pin and shift fork (4) from the
front cover.
9. Remove the front cover bolts.
10. Remove the front cover (5) from the transmission
case.
220RW088
11. Remove flywheel assembly and crankshaft bearing.
Do not remove except for replacement.
12. Use the remover 5±8840±2000±0 (J±5822) and
sliding hammer 5±8840±0019±0 (J±23907) to
remove the crankshaft bearing
015RW053
Inspection and Repair
Make necessary correction or parts replacement if wear,
damage, or any other abnormal condition are found
through inspection.
Pressure Plate Assembly
201RS002
1. Visually check the pressure plate friction surface for
excessive wear and heat cracks.
2. If excessive wear or deep heat cracks are present,
the pressure plate must be replaced.
Pressure Plate Warpage
201RS003

CLUTCH7C±11
1. Use a straight edge and a feeler gauge to measure
the pressure plate friction surface flatness in four
directions.
2. If any of the measured values exceeds the specified
limit, the pressure plate must be replaced.
Pressure Plate Warpage
Limit: 0.3 mm (0.012 in)
Clutch Cover
201RS004
1. Visually check the entire clutch cover for excessive
wear, cracking, and other damage.
2. The clutch cover must be replaced if any of these
conditions are present.
Clutch Set Force
201RS005
1. Invert the pressure plate assembly.2. Place a new driven plate over the pressure plate. A
metal sheet with ªAº thickness of 8.3 mm (0.327 in)
may be used in place of the driven plate.
3. Compress the pressure plate assembly until the
distance ªBº becomes 12 mm (0.472 in).
4. Note the pressure gauge reading.
5. If the measured value is less than the specified limit,
the pressure plate assembly must be replaced.
Clutch Set Force
Standard: 7208 N ( 1621 lb)
Limit: 6468 N (1454 lb)
Diaphragm Spring Finger Height
201RW009
Legend
(1) Release Side
1. Place a new driven plate or a 8.3 mm (0.327 in)
spacer beneath the pressure plate.
2. Fully compress the pressure plate and diaphragm
spring.
3. There are two ways to do this.
4. Use a bench press to press down on the assembly
from the top.
5. Tighten the fixing bolts.
NOTE: Preload on diaphragm spring finger must be 49 ±
98 N (11 ± 22 lb) in direction of release, when clutch cover
assembly is bolted to the flywheel.
6. Measure the spring height from base to spring tip ªAº.
If the measured value exceeds the specified limit, the
pressure plate assembly must be replaced.
Diaphragm Spring Finger Height
Standard: 49.9 mm ± 51.9 mm (1.965 in ±
2.043 in)

7C±12CLUTCH
Driven Plate Assembly
201RW033
Legend
(1) Driven Plate Assembly (6VE1)
(2) Driven Plate Assembly (4JX1)
1. Visually check the torsion spring for looseness,
breakage, and weakening.
2. If any of these conditions are discovered, the driven
plate assembly must be replaced.
3. Visually check the facing surfaces for cracking and
excessive scorching.
4. Visually inspect the facing surfaces for the presence
of oil or grease.
5. If any of these conditions are discovered, the facing
must be cleaned or replaced.
6. Check that the driven plate moves smoothly on the
transmission top gear shaft spline.
7. Minor ridges on the top gear shaft spline may be
removed with an oil stone.
Driven Plate Warpage
201RW034
Legend
(1) Driven Plate Assembly (6VE1)
(2) Driven Plate Assembly (4JX1)
1. Insert the clutch pilot aligner into the driven plate
splined hub.
2. The clutch pilot aligner J-24547 must be held
perfectly horizontal.
3. Set a dial indicator to the driven plate outside
circumference.
4. Slowly turn the driven plate.
5. Read the dial indicator as you turn the driven plate.
6. If the measured value exceeds the specified limit, the
driven plate assembly must be replaced.
Driven Plate Warpage
Standard: 0.7 mm (0.028 in)
Limit: 1.0 mm (0.039 in)

CLUTCH7C±13
Driven Plate Splined Hub Spline Wear
201RW032
Legend
(1) Driven Plate Assembly (6VE1)
(2) Driven Plate Assembly (4JX1)
1. Clean the driven plate splined hub.
2. Install the driven plate to the transmission top gear
shaft spline.
3. Set a surface gauge to the driven plate outside
circumference.
4. Slowly turn the driven plate counterclockwise.
5. Measure the spline rotation play as you turn the
driven plate.
6. If the measured value exceeds the specified limit, the
driven plate assembly must be replaced.
Driven Plate Splined Hub Spline Wear
Standard: 0.5 mm (0.020 in)
Limit: 1.0 mm (0.039 in)
Rivet Head Depression
201RS010
1. Use a depth gauge or a straight edge with steel rule to
measure the rivet head depression 1 from the facing
surface 2.
2. Be sure to measure the rivet head depression on both
sides of the driven plate.
3. If the measured value is less than the specified limit,
the driven plate assembly must be replaced.
Rivet Head Depression
Standard:
Flywheel sidePressure plate side
6VE11.95mm (0.077 in)1.95mm (0.077 in)
4JX11.60mm (0.063 in)1.60mm (0.063 in)
Limit: 0.2 mm (0.008 in)