Isuzu N-Series. Manual — part 824
7B-66 MANUAL TRANSMISSION (MSB)
Reassembly
Notice:
Clean each part thoroughly.
When assembling parts, apply clean engine oil (SAE
5W-30) to their sliding and mating sections.
1. Gear Case
2. Shift Rod Oil Seal
• Clean and dry on the mating faces before ap-
plying the liquid gasket.
• Apply liquid gasket (Three Bond 1141E or
equivalent) to the new oil seal outer circumfer-
ence and apply multi-purpose grease to the oil
seal lip.
• Use the oil seal installer to install the oil seal.
Oil Seal Installer: 5-8840-2065-0
3. Shift Arm
• With the boss side of the shift arm (1) set to the
rear.
4. Shift Rod
• Turning the detent groove to the outside (de-
tent pin side), insert the shift rod from the front
side with the detent groove side at the front.
5. Spring Pin
• Setting the hole of the shift arm to that of the
shift rod, fix them with a new spring pin (1).
6. Shift Rod Plug
• Clean and dry on the mating faces before ap-
plying the liquid gasket.
• Apply liquid gasket (LOCTITE 962T or equiva-
lent) to the cap outer circumference.
• Use the plug installer to install the shift rod cap.
Plug Installer: 5-8840-2067-0
Notice:
When there is any warp or flaw found with the shift rod
cap, replace it with new one.
7. Upper Cover
• Clean and dry on the mating faces before ap-
plying the liquid gasket.
• Apply liquid gasket (FMD-127 or equivalent) to
the gear case and upper cover surfaces.
• Install the upper cover with new gasket.
Tighten:
Upper cover bolt to 25 N
⋅m (2.5 kg⋅m / 18 lb⋅ft)
N7A0197E
N7A0237E
N7A0190E
MANUAL TRANSMISSION (MSB) 7B-67
8. Detent Pin
9. Detent Spring
10. Plug
• Remove sealant from the plug and female
threaded surfaces and the surfaces must be
perfectly dry.
• Apply liquid gasket (LOCTITE 242 or equiva-
lent) to the plug’s threaded portion.
Tighten:
Detent pin plug to 25 N
⋅m (2.5 kg⋅m / 18 lb⋅ft)
11. Output Gear with Bushing
• Install with the dog gear side turned to the cou-
pling driver side (to the rear).
12. Sleeve
• Chamfer face of the sleeve outer circumfer-
ence should be positioned toward the coupling
driver and assemble the sleeve groove to the
shift arm.
13. Output Shaft
14. Thrust Collar
15. Front Bearing
• Install the thrust collar and front bearing using
bearing installer.
Bearing Installer: 5-8840-2066-0
16. Front Cover
• Clean and dry on the mating faces before ap-
plying the liquid gasket.
• Apply liquid gasket (FMD-127 or equivalent) to
the gear case and front cover surfaces.
• Install the front cover with new gasket.
• Apply liquid gasket (LOCTITE 242 or equiva-
lent) to the fixing bolt’s threaded portion.
Tighten:
Upper cover bolt to 25 N
⋅m (2.5 kg⋅m / 18 lb⋅ft)
17. Rear Bearing
• Use the bearing installer to install the rear bear-
ing.
Bearing Installer: 5-8840-2066-0
N7A0191E
N7A0198E
N7A0199E
N7A0200E
7B-68 MANUAL TRANSMISSION (MSB)
18. Rear Cover
• Apply liquid gasket (FMD-127 or equivalent) to
the new oil seal outer circumference and apply
multi-purpose grease to the oil seal lip.
• Use oil seal installer to install the oil seal to the
rear cover.
Oil Seal Installer: 5-8840-2064-0
• Apply approx. 3 grams (0.1 ounce) of the Multi-
purpose with MOS
2
type grease to the inside of
rear cover.
• Clean and dry on the mating faces before ap-
plying the liquid gasket.
• Apply liquid gasket (Three Bond 1141E or
equivalent) to the rear cover and gear case sur-
faces.
• Install the rear cover with new gasket.
Tighten:
Rear cover bolt to 25 N
⋅m (2.5 kg⋅m / 18 lb⋅ft)
19. Coupling Driver
20. Lock Nut and Washer
• Attach a backing plate to the vice, secure the
coupling driver, and tighten the lock nut.
Tighten:
Lock nut to 105 N
⋅m (10.7 kg⋅m / 77 lb⋅ft)
21. Needle Bearing
22. Idle Gear
• Install with the oil holes side turned to the rear.
23. Idle Gear Shaft
24. Spring Pin
N7A0201E
Legend
1. Flange
Legend
1. Oil hole
2. Spring pin
N7A0203E
N7A0204E
CLUTCH 7C-1
MANUAL TRANSMISSION AND CLUTCH
MSB SERIES
SECTION 7C
CLUTCH
Contents
GENERAL DESCRIPTION . . . . . . . . ...7C-2
ON-VEHICLE SERVICE . . . . . . . . . ...7C-4
Clutch Assembly. . . . . . . . . . . . 7C-4
Clutch Control. . . . . . . . . . . . ..7C-11
UNIT REPAIR . . . . . . . . . . . . . .7C-14
Master Cylinder . . . . . . . . . . . ...7C-14
Slave Cylinder . . . . . . . . . . . . .7C-15
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