PROCEDURE
INSPECT 1ST GEAR THRUST CLEARANCE
Using a dial indicator, measure the 1st gear thrust clearance.
Standard Clearance |
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0.20 to 0.38 mm (0.00787 to 0.0149 in.) |
Maximum Clearance |
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0.38 mm (0.0149 in.) |
If the clearance exceeds the maximum, replace the No. 1 transmission clutch hub, 1st gear bushing or 1st gear.
INSPECT 2ND GEAR THRUST CLEARANCE
Using a dial indicator, measure the 2nd gear thrust clearance.
Standard Clearance |
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0.15 to 0.33 mm (0.00591 to 0.0129 in.) |
Maximum Clearance |
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0.33 mm (0.0129 in.) |
If the clearance exceeds the maximum, replace the inner 2nd gear bearing race, No. 1 transmission clutch hub, 2nd gear or 3rd driven gear.
INSPECT 1ST GEAR RADIAL CLEARANCE
Using a dial indicator, measure the 1st gear radial clearance.
Standard Clearance |
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0.009 to 0.045 mm (0.000354 to 0.00177 in.) |
Maximum Clearance |
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0.045 mm (0.00177 in.) |
If the clearance exceeds the maximum, replace the 1st gear, 1st gear needle roller bearing or output shaft.
INSPECT 2ND GEAR RADIAL CLEARANCE
Using a dial indicator, measure the 2nd gear radial clearance.
Standard Clearance |
---|
0.009 to 0.045 mm (0.000354 to 0.00177 in.) |
Maximum Clearance |
---|
0.045 mm (0.00177 in.) |
If the clearance exceeds the maximum, replace the 2nd gear, 2nd gear needle roller bearing or output shaft.
INSPECT OUTPUT SHAFT
Using a dial indicator and 2 V-blocks, check the output shaft runout.
Maximum Runout |
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0.015 mm (0.000591 in.) |
If the runout exceeds the maximum, replace the output shaft.
Using a micrometer, measure the outer diameter of the output shaft journal surface at the locations indicated.
Standard Outer Diameter |
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Part A |
30.002 to 32.017 mm (1.1812 to 1.2605 in.) |
Part B |
37.990 to 38.000 mm (1.4956 to 1.4960 in.) |
Part C |
40.790 to 40.800 mm (1.6059 to 1.6062 in.) |
Part D |
28.002 to 28.017 mm (1.1024 to 1.1030 in.) |
Minimum Outer Diameter |
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Part A |
30.002 mm (1.1812 in.) |
Part B |
37.990 mm (1.4956 in.) |
Part C |
40.790 mm (1.6059 in.) |
Part D |
28.002 mm (1.1024 in.) |
If the outer diameter of any location is less than the minimum, replace the output shaft.
INSPECT 1ST GEAR
Using a cylinder gauge, measure the inside diameter of the 1st gear.
Standard Inside Diameter |
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52.909 to 52.925 mm (2.0830 to 2.0836 in.) |
Maximum Inside Diameter |
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52.925 mm (2.0836 in.) |
If the inside diameter exceeds the maximum, replace the 1st gear.
INSPECT 2ND GEAR
Using a cylinder gauge, measure the inside diameter of the 2nd gear.
Standard Inside Diameter |
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52.909 to 52.925 mm (2.0830 to 2.0836 in.) |
Maximum Inside Diameter |
---|
52.925 mm (2.0836 in.) |
If the inside diameter exceeds the maximum, replace the 2nd gear.
INSPECT 1ST GEAR BUSHING
Using a micrometer, measure the outer diameter of the 1st gear bushing.
Standard Outer Diameter |
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47.89 to 47.90 mm (1.8854 to 1.8858 in.) |
Minimum Outer Diameter |
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47.89 mm (1.8854 in.) |
If the outer diameter is less than the minimum, replace the 1st gear bushing.
Using a cylinder gauge, measure the inside diameter of the 1st gear bushing.
Standard Inside Diameter |
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40.805 to 40.820 mm (1.6064 to 1.6070 in.) |
Maximum Inside Diameter |
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40.820 mm (1.6070 in.) |
If the inside diameter exceeds the maximum, replace the 1st gear bushing.
INSPECT INNER 2ND GEAR BEARING RACE
Using a micrometer, measure the outer diameter of the inner 2nd gear bearing race.
Standard Outer Diameter |
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47.89 to 47.90 mm (1.8854 to 1.8858 in.) |
Minimum Outer Diameter |
---|
47.89 mm (1.8854 in.) |
If the outer diameter is less than the minimum, replace the inner 2nd gear bearing race.
Using a cylinder gauge, measure the inside diameter of the inner 2nd gear bearing race.
Standard Inside Diameter |
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38.005 to 38.020 mm (1.4963 to 1.4968 in.) |
Maximum Inside Diameter |
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38.020 mm (1.4968 in.) |
If the inside diameter exceeds the maximum, replace the inner 2nd gear bearing race.
INSPECT NO. 1 SYNCHRONIZER RING SET (for 1st Gear)
Coat the 1st gear cone and No. 1 synchronizer ring set (inner ring, middle ring and outer ring) with gear oil.
Install the inner ring to the 1st gear.
*a | Outer Ring |
*b | Middle Ring |
*c | Inner Ring |
Install the middle ring to the 1st gear.
Install the outer ring to the 1st gear.
Check for wear and damage.
*a | Locks |
Turn the synchronizer ring set in one direction while pushing it against the 1st gear cone.
Check that the synchronizer ring set locks.
If the synchronizer ring set does not lock, replace the synchronizer ring set.
Using a feeler gauge, measure the clearance between the synchronizer ring and the gear spline end.
Standard Clearance |
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0.915 to 1.855 mm (0.03602 to 0.07303 in.) |
Minimum Clearance |
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0.915 mm (0.03602 in.) |
If the clearance is less than the minimum, replace the synchronizer ring set.
INSPECT NO. 1 SYNCHRONIZER RING SET (for 2nd Gear)
Coat the 2nd gear cone and No. 1 synchronizer ring set (inner ring, middle ring and outer ring) with gear oil.
Install the inner ring to the 2nd gear.
*a | Outer Ring |
*b | Middle Ring |
*c | Inner Ring |
Install the middle ring to the 2nd gear.
Install the outer ring to the 2nd gear.
Check for wear and damage.
*a | Locks |
Turn the synchronizer ring set in one direction while pushing it against the 2nd gear cone.
Check that the synchronizer ring set locks.
If the synchronizer ring set does not lock, replace the synchronizer ring set.
Using a feeler gauge, measure the clearance between the synchronizer ring and the gear spline end.
Standard Clearance |
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0.92 to 1.86 mm (0.0362 to 0.0732 in.) |
Minimum Clearance |
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0.92 mm (0.0362 in.) |
If the clearance is less than the minimum, replace the synchronizer ring set.
INSPECT REVERSE GEAR
Using a vernier caliper, measure the width of the reverse gear groove (A) and the thickness of the claw part on the No. 1 gear shift fork shaft assembly (B), and calculate the clearance.
*a | Clearance |
Standard Clearance (A - B) |
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0.1 to 0.5 mm (0.00394 to 0.0196 in.) |
If the clearance is out of specification, replace the reverse gear and No. 1 gear shift fork shaft assembly.
INSPECT NO. 1 TRANSMISSION CLUTCH HUB
Check that the No. 1 transmission clutch hub and reverse gear slide smoothly.
Check that the edges of the reverse gear splines are not worn down.