Page 3201 of 4264
MANUAL TRANSMISSION 7B1-37
Top Gear Shaft, Main Gear Shaft, and Counter Gear Shaft
Disassmebled View
226RS026
Page 3202 of 4264
7B1-38 MANUAL TRANSMISSION
Legend
(1) Top Gear Shaft Snap Ring (16) 1st Outside Ring
(2) Top Gear Shaft (17) 1st Block Ring
(3) Ball Bearing (18) Needle Bearing
(4) Needle Bearing (19) Clutch Hub Snap Ring
(5) Top Block Ring (20) 1st-2nd Synchronizer Assembly
(6) Mainshaft Snap Ring (21) 2nd Block Ring
(7) 3rd-4th Synchronizer Assembly (22) 2nd Outside Ring
(8) 3rd Block Ring (23) 2nd Inside Ring
(9) 3rd Gear (24) 2nd Gear
(10) Needle Bearing (25) Needle Bearing
(11) Needle Bearing Collar (26) Mainshaft
(12) Mainshaft Ball Bearing (27) Bearing Snap Ring
(13) 1st Gear Thrust Bearing (28) Front Roller Bearing
(14) 1st Gear (29) Center Roller Bearing
(15) 1st Inside Ring (30) Counter Gear Shaft
Page 3203 of 4264
MANUAL TRANSMISSION 7B1-39
Disassembly
1. Use a pair of snap ring pliers to remove the top gear
shaft snap ring(1).
2. Remove top gear shaft(2) with ball bearing(3).
3. Use a bench press and the bearing remover 5-8840-
0015-0 to remove the ball bearing(3).
226RW216
4. Remove needle bearing (4) and top block ring (5),
mainshaft snap ring.
5. Use a pair of snap ring pliers to remove the
mainshaft snap ring (6).
226RS008
6. Use a bench press and the bearing remover 5-8840-
0015-0 to remove the 3rd-4th synchronizer
assembly (7) as a set.
Disassemble the synchronizer assembly.
226RW217
Legend
(1) Springs
(2) Sleeve
(3) Clutch Hub
(4) Inserts
7. Remove 3rd block ring (8), 3rd gear (9), and needle
bearing (10).
8. Use a bench press and the bearing remover 5-8840-
0015-0 to remove the 1st gear(14) together with the
mainshaft ball bearing(12), 1st gear thrust bearing
(13), and needle bearing collar (11).
226RW218
Page 3204 of 4264
7B1-40 MANUAL TRANSMISSION
9.Disassemble 1st inside ring (15), 1st outside ring (16),
and 1st block ring (17).
10.Remove needle bearing (18).
11.Use a pair of snap ring pliers to remove the clutch
hub snap ring (19).
226RS031
12.Use bench press and the bearing remover 5-8840-
0015-0 to remove the 2nd gear (24) together with
1st-2nd synchronizer assembly (20), 2nd block ring
(21), 2nd outside ring (22), and inside ring (23).
Disassemble the synchronizer assembly.
226RW220
Legend
(1) Springs
(2) Sleeve
(3) Clutch Hub
(4) Inserts
13. Remove needle bearing (25) from mainshaft (26).
14. Remove bearing snap ring (27).
15. Remove the front roller bearing (28) by performing
the following steps.
Remove the ring, outer race and bearing
assembly by using a bench press and remover
5-8840-0015-0.
Remove the inner race by using a bench press
and remover 5-8840-0015-0.
226RW219
16. Remove center roller bearing (29) from counter gear
shaft (30).
Page 3205 of 4264
MANUAL TRANSMISSION 7B1-41
Inspection and Repair
Make the necessary adjustments, repairs, and part
replacements if excessive wear or damage is
discovered during inspection.
Block Ring and Dog Teeth Clearance
Use a thickness gauge to measure the clearance
between the block ring and the dog teeth.
226RS035
If the measured value exceeds the specified limit,
the block ring must be replaced.
Block Ring and Dog Teeth Clearance
Standard Limit
1.5 mm (0.059 in) 0.8 mm (0.032 in)
Page 3206 of 4264

7B1-42 MANUAL TRANSMISSION
1st-2nd Synchronizer (3-CONE)
Use a thickness gauge to measure the clearance
between the block ring and the dog teeth.
226RS036
If the measured value exceeds the specified limit,
the 1st-2nd synchronizer assembly must be
replaced.
Block Ring and Dog Teeth Clearance
Standard Limit
1.5 mm (0.059 in) 0.8 mm (0.032 in)
Block Ring and Insert Clearance
Use a vernier caliper or thickness gauge to measure
the clearance between the block ring and the insert.
226RS037
If the measured value exceeds the specified limit,
the block ring and the insert must be replaced.
Block and Insert Clearance
Standard Limit
3rd-4th 3.46 - 3.76 mm
(0.136 - 0.148 in) 4.0 mm
(0.158 in)
1st-2nd3.86 – 4.16 mm
(0.152 - 0.164 in) 4.9 mm
(0.193 in)
Rev.5th3.59 - 3.91 mm
(0.141 - 0.154 in) 4.1 mm
(0.161 in)
Clutch Hub and Insert Clearance
Use a thickness gauge to measure the clearance
between the clutch hub and the insert.
226RS038
If the measured value exceeds the specified limit,
the clutch hub and the insert must be replaced.
Clutch Hub and Insert Clearance
Standard Limit
1st-2nd
3rd-4th 0.01 – 0.21 mm
(0.004 - 0.0083 in) 0.3 mm
(0.012 in)
Rev-5th0.09 – 0.31 mm
(0.0035 - 0.0122 in) 0.4 mm
(0.016 in)
Page 3207 of 4264

MANUAL TRANSMISSION 7B1-43
Mainshaft Run-out
Install the mainshaft to V-blocks.
Use a dial indicator to measure the mainshaft
central portion run-out.
226RS039
If the measured mainshaft run-out exceeds the
specified limit, the mainshaft must be replaced.
Mainshaft Run-out
Limit: 0.05 mm (0.0020 in)
Gear Inside Diameter
Use an inside dial indicator to measure the gear
inside diameter.
226RS040
If the measured value is less than the specified limit,
the gear must be replace.
Gear Inside Diameter
Standard Limit
1st
3rd 45.000 - 45.013 mm
(1.771 - 1.772 in) 45.100 mm
(1.776 in)
2nd 52.000 - 52.013 mm
(2.047 - 2.048 in) 52.100 mm
(2.051 in)
Rev. 48.000 - 48.013 mm
(1.889 - 1.890 in) 48.100 mm
(1.894 in)
5th 32.000 - 32.013 mm
(1.259 - 1.260 in) 32.100 mm
(1.246 in)
Reverse Idler Gear and Idler Gear Shaft
Clearance
Use a micrometer to measure the idler gear shaft
diameter.
Use an inside dial indicator to measure the idler
gear inside diameter.
226RS041
Calculate the idler gear and idler gear shaft
clearance.
Idler gear inside diameter-idler gear shaft diameter =
idle gear and idler gear shaft clearance.
If the measured value exceeds the specified limit,
the idle gear and/or the idler gear shaft must be
replaced
Idler Gear and Idler Gear Shaft Clearance
Standard: 0.041 - 0.074 mm (0.0016 -0.0029 in)
Limit: 0.150 mm (0.0059 in)
Page 3208 of 4264

7B1-44 MANUAL TRANSMISSION
Clutch Hub Spline Play
Set a dial indicator to the clutch hub to be
measured.
226RS042
Move the clutch hub as far as possible to both the
right and the left.
Note the dial indicator reading.
If the measured value exceeds the specified limit,
the clutch hub must be replaced.
Clutch Hub Spline Play
Standard Limit
1st-2nd
3rd-4th 0 - 0.1 mm
(0 - 0.004 in) 0.2 mm
(0.008 in)
Rev. 5th 0 - 0.2 mm
(0 - 0.008 in) 0.3 mm
(0.012 in)
Ball Bearing Play
Use a dial indicator to measure the ball bearing play.
Ball Bearing Play
Limit: 0.2 mm (0.008 in)
226RS043
Reassembly
1. Install center roller bearing (29) to counter gear
shaft (30).
Apply engine oil to the bearing inner and outer
circumferences.
Install the roller bearing in the proper direction.
NOTE: Check that outer race moves only in the
direction of arrow.
226RS044
2. Install front roller bearing (28) by performing the
following steps.
Use bearing installer 5-8840-2194-0 to install the
front roller bearing inner race to the counter gear
shaft (30).
Install the outer race and roller assembly.
The snap ring groove must be facing the
transmission front side.