Isuzu N-Series. Manual — part 868
CLUTCH 7C-21
• Check the internal surface of the cylinder body for
stepped wear, corrosion and damage, and mea-
sure the inside diameter.
Inside diameter of the cylinder body.
Standard inside diameter :
φ25.4 mm (1.0 in)
• Check the piston for damage, rust and wear.
• Measure the clearance between the cylinder body
and the piston.
Standard inside diameter : 0.02 — 0.10 mm (0.00078 —
0.0039 in)
Limit : 0.11 mm (0.0043 in)
• If the limit value is exceeded, replace the slave cyl-
inder assembly.
Installation
1. Assemble the cylinder body.
2. Assemble the bleeder screw.
3. Assemble the piston assembly.
• Before assembling, apply a thin coat of rubber
grease to the piston.
Caution:
Make sure not to damage the piston assembly when as-
sembling.
4. Assemble the boots.
5. Assemble the push rod.
Specifications
N7A0513E
PRESSURE PLATE
Spring Shape
Diaphragm Spring
Outer Circumference
373 mm (14.685 in)
Installation Force
Set Force
Engine Model
8,340 N (850 kg / 1,874 lb) 4HF1, 4HG1, 4HF1-II
9,500 N (970 kg / 2,139 lb)
4HG1-T, 4HE1-TC-N,
4HK1-TC
6,200 N (633 kg / 1,396 lb)
4JH1-TC-S
Spring Finger Installation Height
49 — 51 mm (1.93 — 2.01 in)
CLUTCH DISK
Outside Diameter
× Inside Diameter
300
× 190 mm (11.81 × 7.48 in)
Assembly Thickness: When free
8.9 mm (0.35 in)
Assembly Thickness: When com-
pressed
8.5 mm (0.33 in)
CLUTCH PEDAL
Clutch Pedal Height
160 — 170 mm (6.29 — 6.69 in)
Clutch Pedal Stroke
159 — 169 mm (6.25 — 6.65 in)
Clutch Pedal Free Play
15 — 25 mm (0.59 — 0.98 in)
MASTER CYLINDER Inside Diameter
φ20.64 mm (0.81 in) (with Booster)
φ19.05 mm (0.74 in) (without Booster)
7C-22 CLUTCH
Fixing Torque
Special Tools
CLUTCH BOOSTER
Diaphragm Valid Diameter
φ130 mm (5.11 in)
SLAVE CYLINDER
Inside Diameter
φ25.4 mm (1.00 in)
N7A0514E
Illustration
Tool Number /
Description / Remarks
9-8523-1733-0 / Handle
5-8840-2056-0 / Support
Plate
9852317330
5884020560
International Service & Parts
Tokyo, Japan
WORKSHOP MANUAL
N-SERIES
MANUAL TRANSMISSION AND
CLUTCH MZZ SERIES
SECTION 7
NOTICE
Before using this Workshop Manual to assist you in performing
vehicle service and maintenance operations, it is recommended that
you carefully read and thoroughly understand the information
contained in Section-0A under the headings “GENERAL REPAIR
INSTRUCTIONS” and “HOW TO USE THIS MANUAL”.
All material contained in this Manual is based on latest product
information available at the time of publication.
All rights are reserved to make changes at any time without prior
notice.
Applicable Model:
N-Series
This manual is applicable to 2005 year model.
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