Page 2012 of 3833
MT-36
TRANSAXLE ASSEMBLY
4. Remove check plugs (4 pieces), check springs (4 pieces), check
balls (4 pieces) and shift check sleeve (2 pieces).
5. Remove transaxle case fixing bolts.
6. Remove bore plug.
CAUTION:
Be careful not to damage transaxle case.
7. While spreading the snap ring of mainshaft rear bearing located
at bore plug hole, remove transaxle case.
8. Remove oil gutter, baffle plate.
9. Remove snap ring, mainshaft rear bearing adjusting shim and
input shaft rear bearing adjusting shim from transaxle case.
10. Remove differential side bearing outer race (transaxle case
side) and then adjusting shim.
11. Remove welch plug.
12. Remove differential oil seal (transaxle case side).
13. Remove magnet from clutch housing.
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Page 2014 of 3833
MT-38
TRANSAXLE ASSEMBLY
27. Remove retaining pin of 1st & 2nd shift fork using pin punch.
28. Pull out 1st & 2nd fork rod with bracket.
29. Remove 1st & 2nd shift fork.
30. Remove retaining pin of 1st & 2nd bracket using pin punch and
separate fork rod and bracket.
31. Remove gear components from clutch housing in the following
procedure.
a. While tapping input shaft with plastic hammer, remove input
shaft assembly, mainshaft assembly and reverse idler gear
assembly as a set.
CAUTION:
Always withdraw mainshaft straight out. Failure to do so
can damage resin oil channel on clutch housing side.
b. Remove final drive assembly.
32. Remove main bearing retainer and then mainshaft front bearing.
33. Remove oil channel on mainshaft side.
34. Remove differential oil seal (clutch housing side).
35. Remove differential side bearing outer race (clutch housing
side).
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Page 2015 of 3833
TRANSAXLE ASSEMBLY
MT-39
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36. Remove input shaft oil seal.
CAUTION:
Be careful not to damage clutch housing.
ASSEMBLY
1. Using a drift, install input shaft oil seal from clutch housing end
of side to the depth of 1.8 to 2.8 mm (0.071 to 0.110 in).
CAUTION:
Do not reuse oil seals.
2. Using a drift, install differential oil seal until the face is flush with
clutch housing.
CAUTION:
Do not reuse oil seals.
3. Install oil channel on mainshaft side.
CAUTION:
Be careful with orientation of installation.
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Page 2016 of 3833
MT-40
TRANSAXLE ASSEMBLY
4. Using a drift, install mainshaft front bearing.
CAUTION:
Be careful with orientation of installation.
5. Install bearing retainer.
CAUTION:
Install with punched surface facing up.
6. Install differential side bearing outer race.
7. Install final drive assembly into clutch housing.
8. Install input shaft assembly, mainshaft assembly, and reverse
idler gear assembly into clutch housing.
CAUTION:
Be sure not to damage input shaft oil seal.
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MT-42
TRANSAXLE ASSEMBLY
22. Install retaining pin onto reverse bracket.
CAUTION:
Do not reuse retaining pin.
23. Install reverse shift fork and reverse fork rod.
24. Install reverse lever assembly following procedures below.
a. Install shifter cap onto reverse lever assembly cam, and then
install them onto reverse shift fork.
CAUTION:
Do not drop shifter cap.
b. While lifting reverse shift fork, align cam with reverse bracket.
c. Tighten mounting bolts to specified torque, and then install
reverse lever assembly.
25. Install check ball, reverse shift check sleeve, reverse check
spring and reverse check ball plug.
CAUTION:
●Do not reuse check ball plug.
●Do not drop check ball.
26. Install the magnet onto clutch housing.
27. Using a drift, install differential oil seal until it is flush with end
face of transaxle case.
CAUTION:
Do not reuse oil seals.
28. Install selected input shaft adjusting shim onto input shaft.
●For selection of adjusting shims, refer toMT-49, "INPUT
SHAFT END PLAY" .
29. Install baffle plate and oil gutter.
30. Install transaxle case following procedures below.
a. Install selected mainshaft rear bearing adjusting shim into tran-
saxle case.
●For selection of adjusting shims, refer toMT-50, "MAINSHAFT END PLAY" .
b. Temporarily install snap ring of mainshaft rear bearing into transaxle case.
CAUTION:
Do not reuse the snap ring.
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TRANSAXLE ASSEMBLY
MT-47
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DIFFERENTIAL SIDE BEARING PRELOAD
●When adjusting differential side bearing preload, select adjust-
ing shim for differential side bearing. To select adjusting shim,
measure clearance “L” between transaxle case and differential
side bearing outer race.
●Calculate dimension “L” (thickness of adjusting shim) using the
following procedure to satisfy specification of preload for differ-
ential side bearing.
Adjusting Shim
CAUTION:
Up to 2 adjusting shims can be selected.
1. Using depth micrometer and straightedge, measure dimension
"L
1 " between clutch housing case end face and mounting face
of adjusting shim.
2. Install outer race onto differential side bearing on final gear side.
Holding lightly the outer race horizontally by hand, rotate final
gear five times or more (for smooth movement of bearing roller).
3. Using depth micrometer and straightedge as shown in the fig-
ure, measure dimension "L
2 " between differential side bearing
outer race and transaxle case end face.Preload: 0.15 - 0.21 mm (0.0059 - 0.0083 in)
Dimension“L” = (L
1 - L2 ) + Preload
L: Thickness of adjusting shim
L
1
:Distance between clutch housing case end
face and mounting face of adjusting shim
L
2
:Distance between differential side bearing and
transaxle case
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Shim thickness Part number
0.48 mm (0.0189 in)
0.52 mm (0.0205 in)
0.56 mm (0.0220 in)
0.60 mm (0.0236 in)
0.64 mm (0.0252 in)
0.68 mm (0.0268 in)
0.72 mm (0.0283 in)
0.76 mm (0.0299 in)
0.80 mm (0.0315 in)
0.84 mm (0.0331 in)
0.88 mm (0.0346 in)
0.92 mm (0.0362 in)31438 80X00
31438 80X01
31438 80X02
31438 80X03
31438 80X04
31438 80X05
31438 80X06
31438 80X07
31438 80X08
31438 80X09
31438 80X10
31438 80X11
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MT-48
TRANSAXLE ASSEMBLY
4. Install selected adjusting shim and then differential side bearing
outer race.
REVERSE IDLER GEAR END PLAY
●When adjusting reverse idler gear end play, select adjusting
shim for reverse idler gear. To select adjusting shim, measure
clearance between transaxle case and reverse idler gear.
●Calculate dimension "Q" (thickness of adjusting shim) using the
following procedure to satisfy specification of end play for
reverse idler gear.
Adjusting Shim
CAUTION:
Only 1 adjusting shim can be selected.
1. Using depth micrometer and straight edge, measure dimension
"Q
1 " between transaxle case end face and mounting face of
adjusting shim.
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End play: 0.04 - 0.10 mm (0.0016 - 0.0039 in)
Dimension“Q” = (Q
1 - Q2 ) + End play
Q: Thickness of adjusting shim
Q
1 : Distance between transaxle case end face and
mounting face of adjusting shim
Q
2 : Distance between clutch housing case end
face and end face of reverse idler gear
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Shim thickness Part number Shim thickness Part number
1.76 mm (0.0693 in)
1.80 mm (0.0709 in)
1.84 mm (0.0724 in)
1.88 mm (0.0740 in)
1.92 mm (0.0756 in)
1.96 mm (0.0772 in)
2.00 mm (0.0787 in)
2.04 mm (0.0803 in)
2.08 mm (0.0819 in)
2.12 mm (0.0835 in)
2.16 mm (0.0850 in)
2.20 mm (0.0866 in)32237 8H800
32237 8H801
32237 8H802
32237 8H803
32237 8H804
32237 8H805
32237 8H806
32237 8H807
32237 8H808
32237 8H809
32237 8H810
32237 8H8112.24 mm (0.0882 in)
2.28 mm (0.0898 in)
2.32 mm (0.0913 in)
2.36 mm (0.0929 in)
2.40 mm (0.0945 in)
2.44 mm (0.0961 in)
2.48 mm (0.0976 in)
2.52 mm (0.0992 in)
2.56 mm (0.1008 in)
2.60 mm (0.1024 in)
2.64 mm (0.1039 in)32237 8H812
32237 8H813
32237 8H814
32237 8H815
32237 8H816
32237 8H817
32237 8H818
32237 8H819
32237 8H820
32237 8H821
32237 8H822
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TRANSAXLE ASSEMBLY
MT-51
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4. Install dial gauge to snap ring access hole, and expand snap
ring. Lift mainshaft assembly through control assembly installa-
tion hole, and push it against transaxle case. This state shall be
defined as base. Moving distance of mainshaft assembly, with
snap ring fit on main bearing, becomes “M”.
DIFFERENTIAL SIDE BEARING PRELOAD
●When adjusting differential side bearing preload, select adjust-
ing shim for differential side bearing. To select adjusting shim,
measure clearance “L” between transaxle case and differential
side bearing outer race.
●Calculate dimension “L” (thickness of adjusting shim) using the
following procedure to satisfy specification of preload for differ-
ential side bearing.
Adjusting Shim
CAUTION:
Up to 2 adjusting shims can be selected.
1. Using depth micrometer and straightedge, measure dimension
"L
1 " between clutch housing case end face and mounting face
of adjusting shim.
2. Install outer race onto differential side bearing on final gear side.
Holding lightly the outer race horizontally by hand, rotate final
gear five times or more (for smooth movement of bearing roller).
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Preload: 0.15 - 0.21 mm (0.0059 - 0.0083 in)
Dimension“L” = (L
1 - L2 ) + Preload
L: Thickness of adjusting shim
L
1
:Distance between clutch housing case end
face and mounting face of adjusting shim
L
2
:Distance between differential side bearing and
transaxle case
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Shim thickness Part number
0.48 mm (0.0189 in)
0.52 mm (0.0205 in)
0.56 mm (0.0220 in)
0.60 mm (0.0236 in)
0.64 mm (0.0252 in)
0.68 mm (0.0268 in)
0.72 mm (0.0283 in)
0.76 mm (0.0299 in)
0.80 mm (0.0315 in)
0.84 mm (0.0331 in)
0.88 mm (0.0346 in)
0.92 mm (0.0362 in)31438 80X00
31438 80X01
31438 80X02
31438 80X03
31438 80X04
31438 80X05
31438 80X06
31438 80X07
31438 80X08
31438 80X09
31438 80X10
31438 80X11
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