Mainshaft Thrust Clearance Adjustment
Special Tools Required
Image Description/Tool Number
310198.png Mainshaft Holder 07GAJ-PG20110
310200.png Mainshaft Base 07GAJ-PG20130

NOTE:
Take measurements at normal room temperature.
Clean all parts thoroughly before installation.

1. Mainshaft Thrust Clearance - Adjust
1.
Remove the 87 mm shim (A).
2.
Thoroughly clean the spring washer (A) before installing it on the clutch housing (B).
NOTE: Be sure to install the spring washer in the direction shown.
3.
Assemble all of the mainshaft components.

4.
Install the mainshaft assembly into the clutch housing.
5.
Place the transmission housing over the mainshaft and onto the clutch housing.
6.
Tighten the clutch and transmission housings with several 10 mm flange bolts in a crisscross pattern in several steps.
Specified Torque:
 
44 N·m (4.5 kgf·m, 32 lbf·ft)
NOTE: It is not necessary to use sealing agent between the housings for this procedure.
7.
Lightly tap on the mainshaft with a soft face hammer.
8.
Attach the mainshaft holder and the mainshaft base to the mainshaft as shown.
9.
Back out the mainshaft holder bolt (A), and loosen the two hex bolts (B).
10.
Fit the mainshaft holder over the mainshaft so its lip is towards the transmission.
11.
Align the mainshaft holder lip around the groove at the inside of the mainshaft splines, then tighten the hex bolts.
12.
Fully seat the mainshaft by tapping its end with a soft face hammer.
13.
Thread the mainshaft holder bolt in until it just contacts the wide surface of the mainshaft base.
14.
Zero a dial gauge (A) on the end of the mainshaft.
15.
Turn the mainshaft holder bolt (B) clockwise; stop turning when the dial gauge has reached its maximum movement. The reading on the dial gauge is the amount of mainshaft thrust clearance.
NOTE: Do not turn the mainshaft holder bolt more than 60 degrees after the needle of the dial gauge stops moving. Applying more pressure with the mainshaft holder bolt could damage the transmission.
16.
If the reading is within the standard, the clearance is correct. If the reading is not within the standard, select the appropriate shim needed from the table, and recheck the thrust clearance.
Standard:
0.14?0.21 mm (0.0055?0.0083 in)
(Example)
Measure reading:
1.23 mm (0.0484 in)
Subtract the middle of the clearance standard 0.17 mm (0.0067 in) from the total clearance measurement.
1.23 ? 0.17 (0.0484 ? 0.0067)
= 1.06 mm (0.0417 in)
Select the shim closest to the amount calculated. For this example, the 1.05 mm (0.0413 in) shim is best.
NOTE: It is acceptable to select two 87 mm shims and put them together to get the required thickness. Make sure the washers are clean and dry to achieve an accurate measurement.
17.
With the appropriate size shim installed in the transmission housing, check the thrust clearance again to verify the clearance is within the standard.
87 mm Shim
Type
Thickness
A
0.60 mm (0.0236 in)
B
0.63 mm (0.0248 in)
C
0.66 mm (0.0260 in)
D
0.69 mm (0.0272 in)
E
0.72 mm (0.0283 in)
F
0.75 mm (0.0295 in)
G
0.78 mm (0.0307 in)
H
0.81 mm (0.0319 in)
J
0.84 mm (0.0331 in)
K
0.87 mm (0.0343 in)
L
0.90 mm (0.0354 in)
M
0.93 mm (0.0366 in)
N
0.96 mm (0.0378 in)
P
0.99 mm (0.0390 in)
R
1.02 mm (0.0402 in)
S
1.05 mm (0.0413 in)
T
1.08 mm (0.0425 in)
U
1.11 mm (0.0437 in)
V
1.14 mm (0.0449 in)
W
1.17 mm (0.0461 in)
X
1.20 mm (0.0472 in)
Y
1.23 mm (0.0484 in)
Z
1.26 mm (0.0496 in)
AA
1.29 mm (0.0508 in)
AB
1.32 mm (0.0520 in)
AC
1.35 mm (0.0531 in)
AD
1.38 mm (0.0543 in)
AE
1.41 mm (0.0555 in)
AF
1.44 mm (0.0567 in)