Isuzu N-Series. Manual — part 828
7C-14 CLUTCH
UNIT REPAIR
Master Cylinder
Disassembly
1. Pipe Joint
2. Clevis Yoke
3. Lock Nut
4. Dust Cover
5. Snap Ring
• Press down the piston with your finger to pre-
vent it from jumping out.
6. Stopper
7. Push Rod
8. Piston Assembly
9. Return Spring
10. Cylinder Body
Inspection and Repair
Make the necessary adjustments, repairs, and parts re-
placements if excessive wear or damage is discovered
during inspection.
Cylinder Body
• Wash clean the cylinder body in brake fluid.
• Check the fluid return port for restrictions and
clean it if necessary.
• Measure the cylinder bore diameter.
Legend
1. Pipe joint
6. Stopper
2. Clevis yoke
7. Push rod
3. Lock nut
8. Piston assembly
4. Dust cover
9. Return spring
5. Snap ring
10. Cylinder body
N7A0231E
Master Cylinder Bore Diameter
mm (in)
Standard
φ19.050 — 19.102 (0.7500 — 0.7520)
CLUTCH 7C-15
• If excessive wear or any abnormal conditions
are present, the master cylinder assembly must
be replaced with new one.
Caution:
If the master cylinder has been disassembled, the repair
kit must be replaced with new one.
Reassembly
1. Cylinder Body
• Immerse the cylinder body in clean brake fluid.
2. Return Spring
• Install the return spring to the piston assembly.
3. Piston Assembly
• Before installing, apply a thin coat of rubber
grease to the piston.
Caution:
Use care to prevent damaging the lip of the piston cup.
4. Push Rod
5. Stopper
6. Snap Ring
7. Dust Cover
8. Lock Nut
Tighten:
Lock nut to 17 N
⋅m (1.7 kg⋅m / 12 lb⋅ft)
9. Clevis Yoke
10. Pipe Joint
Tighten:
Pipe joint to 5 N
⋅m (0.5 kg⋅m / 43 lb⋅in)
Slave Cylinder
Clearance between Cyl-
inder Bore and Piston
Clearance
mm (in)
Standard Limit
0.03 — 0.11 (0.001 —
0.004)
0.12 (0.005)
N7A0232E
N7A0234E
7C-16 CLUTCH
Disassembly
1. Push Rod
2. Boot
3. Piston Assembly
4. Bleeder Screw
5. Cylinder Body
Inspection and Repair
Make the necessary adjustments, repairs, and parts re-
placements if excessive wear or damage is discovered
during inspection.
Cylinder Body
• Wash clean the cylinder body in brake fluid.
• Measure the cylinder bore diameter.
• If excessive wear or any abnormal conditions
are present, the slave cylinder assembly must
be replaced with new one.
Caution:
If the slave cylinder has been disassembled, the repair
kit must be replaced with new one.
Reassembly
1. Cylinder Body
2. Bleeder Screw
3. Piston Assembly
• Before installing, apply a thin coat of rubber
grease to the piston.
Caution:
Use care to prevent damaging the lip of the piston cup.
4. Boot
5. Push Rod
Legend
1. Push rod
4. Bleeder screw
2. Boot
5. Cylinder body
3. Piston assembly
Cylinder Bore Diameter
mm (in)
Standard
φ26.990 — 27.042 (1.0626 — 1.0646)
Clearance between Cyl-
inder Bore and Piston
Clearance
mm (in)
Standard Limit
0.02 — 0.10 (0.0008 —
0.0039)
0.11 (0.0043)
N7A0235E
International Service & Parts
Tokyo, Japan
WORKSHOP MANUAL
N-SERIES
MANUAL TRANSMISSION AND
CLUTCH MYY SERIES
SECTION 7
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