1997 ISUZU TFS SERIES Workshop Manual

CLUTCH 7C-5
SLAVE CYLINDER
MUA Series
MSG Series
4J Engine Series
6VD1 Engine Series
The slave cylinder converts hydraulic energy into mechanical energy.
Hydraulic fluid supplied by the master cylinder moves the slave cylinder piston to actuate the shift fork.
The mechanical energy produced by the slave cylinder is directly proportional to the diameters of the master
cylinder and the slave cylinder.
A bleeder screw is provided to bleed the slave cylinder.

7C-6 CLUTCH
HYDRAULIC DAMPER CYLINDER
Except 6VD1 LHD Model
The hydraulic damper cylinder is installed between the master cylinder and the slave cylinder to smooth out
variations in clutch pedal feel.

CLUTCH 7C-7
PRESSURE PLATE ASSEMBLY
HEC Engine Series4J Engine Series
6VD1 Engine Series
The pressure plate assembly consists of the clutch cover, the pressure plate with diaphragm spring.
Operating the clutch pedal causes the pressure plate to move in an axial direction to engage and disengage the
clutch.
DRIVEN PLATE ASSEMBLY
The driven plate assembly consists of the plate and the facing.
The plate consists of the clutch center, the cushioning plate and the torsion springs.
The facing is riveted to both sides of the cushioning plate.
The cushioning plate provides a longer service life by minimizing wear and vibration at the clutch contact surfaces.

7C-8 CLUTCH
TORQUE SPECIFICATION
STANDARD BOLTS
The torque values given in the following table should be applied where a particular torque is not specified.
N
m (kgfm/lbft)
Strength 4.8/4T 7T 8.8 9.8/9T
ClassRefined Non-Refined
Bolt Identifi-
cation
Bolt
Diameter
Pitch (mm)
-
M6 1.0 6 (0.6 / 52 lb.in) 7 (0.7 / 61 lb.in) 8 (0.8 / 69 lb.in) -
M8 1.25 13 (1.3 / 113 lb.in) 17 (1.7 / 12) 20 (2.0 / 14) 24 (2.4 / 17)
M10 1.25 27 (2.8 / 20) 37 (3.8 / 27) 42 (4.3 / 31) 50 (5.1 / 37)
M12 1.25 61 (6.3 / 45) 76 (7.8 / 56) 87 (8.9 / 64) 95 (9.7 / 70)
M14 1.5 96 (9.8 / 71) 116 (11.8 / 85) 133 (13.6 / 98) 142 (14.5 / 105)
M16 1.5 130 (13.3 / 96) 170 (17.3 / 125) 193 (19.7 / 143) 200 (20.4 / 148)
M18 1.5 188 (19.2 / 139) 244 (24.9 / 180) 278 (28.3 / 205) 287 (29.3 / 212)
M20 1.5 258 (26.3 / 190) 337 (34.4 / 249) 385 (39.3 / 284) 396 (40.4 / 292)
M22 1.5 332 (33.9 / 245) 453 (46.3 / 335) 517 (52.7 / 381) 530 (54.1 / 391)
M24 2.0 449 (45.8 / 331) 570 (58.2 / 421) 651 (66.3 / 480) 692 (70.6 / 511)
* M10 1.5 26 (2.7 / 20) 36 (3.7 / 27) 41 (4.2 / 30) 48 (4.9 / 35)
* M12 1.75 57 (5.8 / 42) 71 (7.2 / 52) 80 (8.2 / 59) 89 (9.1 / 66)
* M14 2.0 89 (9.1 / 66) 110 (11.2 / 81) 125 (12.7 / 92) 133 (13.6 / 98)
* M16 2.0 124 (12.7 / 92) 162 (16.5 / 119) 185 (18.9 / 137) 191 (19.5 / 141)
Flange BoltM6 1.0 7 (0.7 / 61 lb.in) 8 (0.8 / 69 lb.in) 9 (0.9 / 78 lb.in) -
M8 1.25 15 (1.5 / 11) 19 (1.9 / 14) 22 (2.2 / 16) 26 (2.7 / 20)
M10 1.25 31 (3.2 / 23) 41 (4.2 / 30) 47 (4.8 / 35) 56 (5.7 / 41)
M12 1.25 69 (7.0 / 51) 85 (8.7 / 63) 97 (9.9 / 72) 106 (10.8 / 78)
M14 1.5 104 (10.6 / 77) 126 (12.8 / 93) 144 (14.6 / 106) 154 (15.7 / 114)
M16 1.5 145 (14.8 / 127) 188 (19.2 / 139) 214 (21.8 / 158) 221 (22.5 / 163)
M18 1.5 - - - -
M20 1.5 - - - -
M22 1.5 - - - -
M24 2.0 - - - -
* M10 1.5 30 (3.1 / 22) 40 (4.1 / 30) 46 (4.7 / 34) 54 (5.5 / 40)
* M12 1.75 64 (6.5 / 47) 78 (8.0 / 58) 89 (9.1 / 66) 99 (10.1 / 73)
* M14 2.0 97 (9.9 / 72) 119 (12.1 / 88) 135 (13.8 / 99.7) 144 (14.7 / 107)
* M16 2.0 137 (14.0 / 101) 178 (18.2 / 132) 203 (20.7 / 132) 210 (21.5 / 155)
The asterisk * indicates that the bolts are used for female-threaded parts that are made of soft materials such as
casting, etc.
FLARE NUTS
Pipe diameter mm (in) Torque Nm (kgfm / lbft) Pipe diameter mm (in) Torque Nm (kgfm / lbft)
4.76 (0.187) 16 (1.6 / 12) 10.00 (0.394) 54 (5.5 / 40)
6.35 (0.250) 26 (2.7 / 20) 12.00 (0.472) 88 (9.0 / 65)
8.00 (0.315) 44 (4.5 / 33) 15.00 (0.591) 106 (10.8 / 78)
Standard Hex.
Head Bolt

CLUTCH 7C-9
SPECIAL PARTS FIXING NUTS AND BOLTS
Nm (kgfm/lbft)
HEC Engine Series LHD Model
19.63.9 (2.00.4/14.52.9)
11.8
2.9 (1.20.3/8.82.2) 15.7
4.9 (1.60.5/11.63.6)15.7
2.9 (1.60.3/11.62.2) 17.6
4.9 (1.80.5/13.03.6)

7C-10 CLUTCH
Nm (kgfm/lbft)
HEC Engine Series RHD Model, 4J Engine Series
19.63.9
(2.0
0.4/14.52.9)7.85
0.95
(0.8
0.1/5.80.7) 11.8
2.9
(1.2
0.3/8.82.2) 15.7
2.9
(1.6
0.3/11.62.2)

CLUTCH 7C-11
Nm (kgfm/lbft)
6VD1 LHD Model

7C-12 CLUTCH
Nm (kgfm/lbft)
6VD1 RHD Model