Page 929 of 1033
Cross-sectional View
SMT269D
Front Main drive gear ball bearingClutch housingMain drive gear 3rd & 4th coupling sleeveGear shift housing3rd main gear2nd main gear
1st & 2nd coupling sleeve
1st main gear
Slide ball bearing
Reverse main gear
Reverse coupling sleeveStriking rod
Control housing
Shift lever
Mainshaft bearing
Slide ball bearing
OD main gear
Mainshaft rear end
bearing
OD synchronizer cone
OD coupling sleeve
OD gear case
OD counter gear
Counter gear rear end bearing Reverse idler gear
Reverse idler gear shaft
Drain plug
Filler plug
Transmission case Counter gear Sub-gear Counter gear front bearingFront cover Mainshaft Release sleeve
DESCRIPTIONFS5R50B
MT-1009
Page 930 of 1033
Air Breather Piping
SMT547D Remarks:
1. Route rubber hoses so that they are not bent pinched.
2. Hose insertion
·Insert the tube bulge spool into the spool.
·Insert the tube bulge into the right-angle bend section of the tube.
·Insert unit bulge until the hose connot go in any further.
Place hose clamp at the hose joint
(made of resin) as illustrated so as
not to pinch the rubber hose.
Details at A
Make two paint marks on the breather hose
facing up.
White paint mark
Yellow paint
mark
Transfer
(rear case) Transfer
(center case) Transfer
(front case) Install so that the white paint marks
are facing to the left hand side of
the vehicle.OD case
Breather hose
Pink paint mark
Hose clamp (4 places marked with.)
Clamp-hose tab here must be placed facing up. Tube to side member Yellow paint mark
10.8 - 14.7
(1.1 - 1.5, 8 - 11) Transmission caseBreather tubeFront
Breather hose
White paint mark
: N´m (kg-m, ft-lb)
AIR BREATHERFS5R50B
MT-1010
Page 931 of 1033

Case Components
SMT270D
16 - 21 (1.6 - 2.1, 12 - 15)
16 - 21 (1.6 - 2.1, 12 - 15)
(Self-sealing bolt
)Mating
surface D
Gear shift housing
Transmission case
Filler plug
25-34
(2.5 - 3.5, 18 - 25)
Thread of bolt
54-72
(5.5 - 7.3, 40 - 53)
Front cover oil seal
Seal lip
Mating
surface A
Front
cover
Sealing grommet
54 - 72 (5.5 - 7.3, 40 - 53)
32 - 42 (3.3 - 4.3, 24 - 31)
19 - 24 (1.9 - 2.4, 14 - 17)
(Self-sealing bolt
)
Unit: mm (in)
: N´m (kg-m, ft-lb)
: Apply genuine anaerobic liquid gasket,
Three Bond TB1215, Loctite Part No.
51813 or equivalent.
29 - 39 (3.0 - 4.0, 22 - 29)
29 - 39 (3.0 - 4.0, 22 - 29)Illustration for TB42S engine
model To clutch housing Gusset LH To cylinder block Gusset RH To cylinder blockClutch housing Drain plug
25 - 34 (2.5 - 3.5, 18 - 25)
Thread of boltBearing retainer
16 - 21 (1.6 - 2.1, 12 - 15)
54-72
(5.5 - 7.3, 40 - 53) Mating
surface C Mating
surface B
16-21
(1.6 - 2.1, 12 - 15)OD gear caseRear oil seal
Seal lip
19-24
(1.9 - 2.4, 14 - 17)
57 - 75 (5.8 - 7.6, 42 - 55)
(Self-sealing bolt) Control housing
Mating surfaces to gear shift
housing cover
16 - 21 (1.6 - 2.1, 12 - 15)
Gear shift housing
Liquid gasket
2 - 6 (0.08 - 0.24)
Mating surface D
Liquid gasket
2 - 6 (0.08 - 0.24)
OD gear case
Mating surface C
Transmission case
2-6
(0.08 - 0.24)
Front
Liquid gasket
Mating surface B
Front cover
Liquid gasket
2 - 6 (0.08 - 0.24)
Mating surface A
MAJOR OVERHAULFS5R50B
MT-1011
Page 932 of 1033

Gear Components
SMT271D 3rd gear bushing
3rd gear needle bearing
3rd main gear
3rd inner baulk ring
Synchronizer cone
3rd outer baulk ring
3rd & 4th coupling sleeve
Shifting insert
Shifting insert spring>
4th baulk ring
Main drive gear
Main drive bearing
snap ring
Shifting insert spring>
3rd & 4th synchronizer hub>
3rd & 4th hub snap ring.
Pilot bearing
Main drive bearing>
Main drive gear snap
ring.
Mainshaft 1st gear needle bearing
1st main gear
1st inner baulk ring
Synchronizer cone
1st outer baulk ring
Shifting insert
2nd gear
needle
bearing 2nd main gear
1st & 2nd coupling sleeve
Shifting insert spring
1st & 2nd synchronizer hub>
Shifting insert spring
1st & 2nd hub snap ring.
2nd outer baulk ring
Synchronizer cone
2nd inner baulk ringCounter gear
Sub-gear washer
Sub-gear snap ring
16-21N´m
(1.6 - 2.1 kg-m, 12 - 15 ft-lb)
Lock plate
Reverse idler shaft
Reverse idler needle bearing
Reverse idler gear> Sub-gear
Sub-gear spring> (Inner race)
Counter gear front bearing> (Outer race)
MAJOR OVERHAULFS5R50B
MT-1012
Page 933 of 1033
SMT272D OD main gear>
Mainshaft bearing snap ring
Mainshaft bearing>
Reverse coupling sleeve>
Shifting insert>
Shifting insert springMainshaft spacer
Mainshaft rear end bearing
Mainshaft rear snap ring
Shifting insert spring
Reverse synchronizer hub>
Reverse baulk ring
Reverse gear needle bearing
Reverse main gear
Counter gear rear snap ring
OD synchronizer cone
Shifting insert spring>
OD gear needle bearing
OD counter gear bushing
Thrust washerOD baulk ring
OD coupling sleeve>
Shifting insert>
OD counter gear
Snap ring
(Outer race)
Counter gear rear
bearing> (Inner race)
Transmission case
Apply gear oil to gears, shafts, synchronizers and
bearings when assembling.
.: Select with proper thickness.
>: Pay attention to its direction.
MAJOR OVERHAULFS5R50B
Gear Components (Cont'd)
MT-1013
Page 934 of 1033

Shift Control Components
SMT273D Bushing
Boot band
Select check plungerContact surface to shift lever bracket
Select check spring (Color: white)
Select check plug
20-29
(2.0 - 3.0, 14 - 22)Boot
Boot band
Resin seat
Snap ring
Snap ring
Socket
Spring
Plug
Cam pin16-21
(1.6 - 2.1, 12 - 15)
16-21
(1.6 - 2.1, 12 - 15)Air breather
Neutral position switch
20 - 29 (2.0 - 3.0, 14 - 22)
Plunger
Striking rod cap
Reverse position switch
20 - 29 (2.0 - 3.0, 14 - 22)
Check ball
Plug
20-29
(2.0 - 3.0, 14 - 22)
Interlock plunger
Interlock pin
Check ball
Gear shift housing
16 - 21 (1.6 - 2.1, 12 - 15)
Fork rod cap
16 - 21 (1.6 - 2.1, 12 - 15)
Retaining pin
OD fork rod
OD shift fork
: N´m (kg-m, ft-lb)
: Apply genuine anaerobic liquid gasket, Three
Bond TB1215, Loctite Part No. 51813 or
equivalent.3rd & 4th shift forkShift knob
Shift lever
16 - 21 (1.6 - 2.1, 12 - 15)
Bracket
Control housing
Select check plunger
Contact surface to shift lever bracket
Select check spring (Color: black)
Select check plug
20 - 29 (2.0 - 3.0, 14 - 22)
Check plunger
Spacer
Reverse check spring
Thrust washer
E-ring
Slide ball bearingFork rod capStriking rod cap
Fork rod cap
Reverse fork rod
Retaining pin
Reverse shift fork
Shift lever bracket
Retaining pin
3rd & 4th rod bracket
1st & 2nd rod bracket
Retaining pin
1st & 2nd fork rod
Retaining pin
1st & 2nd shift fork
Retaining pin
3rd & 4th fork rodInterlock pin
Striking leverRetaining pin
Striking rod ClipRetaining pin
Check ball Check ball spring
MAJOR OVERHAULFS5R50B
MT-1014
Page 935 of 1033
Case Components
1. Remove transmission case outer parts.
lControl housing
lGear shift housing
lClutch housing
lOD gear case
lFront cover
2. Remove front cover oil seal.
3. Remove rear oil seal.
Shift Control Components
lRemove and disassemble gear shift housing and control
housing parts.
SMT276D Control housing
Gear shift housing
OD gear case
Transmission case
Clutch housing
Front cover
SMT305D Front cover
SMT551D
SMT290D Control housing
Gear shift housing
DISASSEMBLYFS5R50B
MT-1015
Page 936 of 1033

CONTROL HOUSING
1. Remove select check plugs, springs and select check plung-
ers.
2. Remove E-ring, thrust washer, reverse check spring, spacer,
check plunger and cam pin.
3. Remove plug.
GEAR SHIFT HOUSING
1. Remove reverse and neutral position switch.
lDo not lose check balls and plungers.
2. Remove plug, check balls, interlock pin and interlock plunger.
lDo not lose check balls.
3. Drive out retaining pin from shift lever bracket.
4. Remove retaining pin and plug.
a. Drive out retaining pin from striking lever through plug on
gear shift housing.
SMT548D Select check spring
(Color: white)
Select check
plug
Select check
plunger
Air breather
Check plunger
Reverse check spring
E-ringThrust washerSpacerSelect check spring
(Color: black)Select check
plug Select check plungerControl housing Cam pin
Plug
SMT298D Reverse check assembly
Cam pin
E-ring
SMT295D Interlock plunger
Plug
Interlock pin
Check ballNeutral position switch Reverse position switch
SMT292D Shift lever bracket
SMT293D Gear shift housing
Striking lever
DISASSEMBLYFS5R50B
Shift Control Components (Cont'd)
MT-1016