Isuzu N-Series. Service manual — part 813
7B-22 MANUAL TRANSMISSION (MSB)
32. Counter Shaft Front Bearing
• Move the counter shaft approximately 3 mm
(0.1 in) forward by tapping on its rear end with
brass or plastic hammer.
• Remove the snap ring from the counter shaft
front end.
• Set the bearing remover to the snap ring
groove to remove the front bearing.
Bearing Remover: 5-8840-2078-0
Universal Puller: 5-8840-2027-0
33. Top Gear Shaft Assembly
• Remove the top gear shaft bearing outer race
toward front end using a hammer and soft met-
al bar.
• Remove the block ring and needle bearing.
N7A0088E
N7A0089E
N7A0090E
N7A0091E
MANUAL TRANSMISSION (MSB) 7B-23
34. Main Shaft Rear Bearing
• Move the main shaft approximately 3 mm (0.1
in) rearward by tapping on its front end with
brass or plastic hammer.
• Remove the snap ring and set the bearing re-
mover to the snap ring groove to remove the
bearing.
Bearing Remover: 5-8840-2078-0
Universal Puller: 5-8840-2027-0
35. Main Shaft Assembly
• Take main shaft assembly out from the trans-
mission case.
36. Side Cover
N7A0092E
N7A0093E
N7A0094E
N7A0095E
7B-24 MANUAL TRANSMISSION (MSB)
37. Reverse Idle Gear Shaft
• Take out the pin of reverse idle gear shaft from
the transmission case.
• Drive out the reverse idle gear shaft inward the
transmission case, with a suitable bar at the
end of reverse gear shaft.
38. Reverse Idle Gear
39. Thrust Washer
40. Conical Spring
41. Counter Shaft Assembly
• Remove the snap ring of the counter 5th gear
and place aside inward temporarily.
N7A0096E
N7A0097E
N7A0098E
N7A0099E
MANUAL TRANSMISSION (MSB) 7B-25
• Move the counter 5th gear inward and take it
out together with the counter shaft assembly.
• Remove the counter shaft assembly from the
transmission case.
• Remove the counter 5th gear and the snap ring
from the counter shaft.
Reassembly
Notice:
Clean each part thoroughly.
When assembling parts, apply clean engine oil (SAE
5W-30) to their sliding and mating sections.
1. Counter Shaft Assembly
• Install the snap ring to the counter shaft and
place it aside inward temporarily.
• Then install the counter 5th gear and move it in-
ward.
N7A0100E
N7A0101E
N7A0102E
N7A0103E
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