Page 457 of 1395

Shift Arm Cover/Shift Arm Shaft Assembly
Disassembly/Reassembly
Shift Arm Cover Ass€mbly
1. Remove the breather cap and set ball screw, washer,
spring. and steel ball.
BREATHER CAP
SPRINGL,25.6 mm (1.01 in.l
T BALL SCREW22 N.m 12.2 kgtm, 16lbf.ftl
Remove the special bolt and conical spring washers.
SHIFTARMCOVER
THRUST WASHER
SHIFI ARM C
WASHER 8x1.0mft
SHIFT LEVER
29 N.m 13.0 kg{.m,z2 tbt.ftl
arm C, and thrustRemove the shift lever, shift
washer from the shift arm cover.
Remove the oil seal.
NOTE: lnstall the thrust washer
face toward shift arm cover.
STEEL BALLD. 5/16 in,
13-18
with the alloy sur-
3. Install in the reverse order of removal.
5. Install the oil seal in to the shift arm cover usino thesDecialtools.
HANOLE07749 - 0010000
ATTACHMENT,32x35mm077a6 - 0010100
OIL SEALReplace.
6. Reassemble the shift arm cover in the reve.se order
of disassembly.
Shift Arm Shaft Assembly
1. Remove the special bolts and conical spring wash-
ers.
SPCCIAL BOLT8x1.0mm29 N.m (3.0 kgf.m,SHIFTARMA 22IbI.ftICONICAL SPRING
SHIFT ARM SHAFT
SPECIAL BOLT8x1.0mm29 N.m {3.0 kgf.m, 22 lbtft}
2. Remove the interlock, shift
from the shift arm shaft.
SPRINGWASHER
arm A, and shift arm B
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Page 458 of 1395

2.
Clearance InsPection
1. Measure the clearance between the shift arm A and
select arm.
Standard: 0.05 - 0 25 mm (0.002 - 0'01 inl
Service Limit:0.5 mm (0.02 in)
lf the clearance are more than the service limit,
measure the diameter of the select arm pln
Standard: 7.9 - 8.0 mm (0.311 - 0.315 in)
SELECTARM
lf the diameter of the select arm pin is less than
the service limit, replace the select arm wrtn a
new one.
lf the diameter of the select arm pin is within the
service limit, replace the shift arm A with a new
one.
SELECT ARM
SHIFT ARM A
SHIFT ARM C
SHIFT ARM B
3. Measure the clearance between the shift arm B and
shift arm c.
Standard: 0.05 - 0.25 mm (0.002 - 0.01 inl
Seryice Limit:0,5 mm (0.02 inl
lf the clearance are more than the service limit,
measure the diameter of the shift arm C.
Standard: 12.9 - 13.0 mm (0 508 - 0.512 in)
SHIFT ARM C
lf the diameter of the shift arm C is less than the
service limit, replace the shift arm C with a new
one.
lf the diameter of rhe shift arm C is within the
service limit, replace the shift arm B with a new
o ne.
13-19
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Page 459 of 1395

Reverse Shift Holder
Clearance Inspection
1.Measure the clearances between the reverse shift
holder and sth/reverse shift Diece Din.
Standard:A: 0.05 - 0.35 mm (0.002 - 0.014 in)
8: 0.4 - 0.8 mm 10.02 - 0.03 inl
Service Limit: A: 0.5 mm (0.02 in)
B: 1.0 mm 10.0,[ in]
2.lf the clearances are more than the service limit.
measure the widths of the groove in the reverse
shift holder.
Standard: A: 7.05 - 7.25 mm {0.278 - 0.285 inl
B: 7.4 - 7.7 mm (0.29 - 0.30 inl
lf the widths of the grooves are not within thestandard, replace the reverse shift holder with a
new one.
lf the widths of the grooves are within the stan-
dard, replace the sth/reverse shift piece with anew one.
PIECE PIN
REVERSE SHIFT HOLDER
13-20
3. Measure the clearance between the reverse idler
gear and reverse shift holder.
Standard: 0.5 - 1.1 mm {0.02 - 0.0i1 in}
Service Limit: 1.8 mm (0.07 in)
REVERSEIDLERGEAR
lf the clearance is more than the service limit. mea-
sure the width ot the reverse shift holder.
Standard: 13.0 - 13.3 mm (0.512-0521inl
It the width is not within the standard, replace
the reverse shift holder with a new one.
lf the width is within the standard, reolace the
reverse idler gear with a new one.
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Page 460 of 1395
Shift Fork Assembly
Disassembly/ReassemblY
I erior,o reassembling, clean all the pans in solvent, dry them, and apply lubricant to any contact parts
1ST/2ND SHIFT FORK
SHIFT PIECE
PIN PUNCH, 5.0 mm
3RD/,|TH SHIFT FoRK
5TH/REVERSE
13-21
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Page 461 of 1395

Shift Fork Assembly
Clearance Inspection
NOTE: The synchro sleeve and synchro hub should be
reolaced as a set.
1. Measure the clearance between each shift fork and
its matching synchro sleeve.
Standard: 0.35 - 0.65 mm 10.01/t - 0.026 inl
Service Limit: 1,0 mm {0.039 inl
SHIFT FORK
2. lf the clearance exceeds the service limit. measure
the thickness of the shift fork fingers.
Standard:
lf the thickness of the shift fork finger is less than
the standard, replace the shift fork with a new
one.
lf the thickness of the shift fork tinger is within
the standard, replace the synchro sleeve with a
new one.
3rd/4th shift fork7.4 - 7.6 mm
(0.29 - 0.30 in)
1sv2nd shift fork
5th shift fork
6.2 - 6.4 mm(0.24 - 0.25 in)
3. Measure the clearance between the shift fork and
the shift arm A.
Standard; 0.2 - 0.5 mm (0.008-0.020 in)
Service Limit: 0.6 mm (0.02i1 in)
sTH/REVERSESHIFT PIECE ran,rru
lST/2NDSI{IFT FORK
lf the clearance exceeds the service limit, measure
the width of the shift arm A.
Standard: 12.9 - 13.0 mm 10.508 - 0.512 inl
lf the width of the shift arm A is less than the
standard, reDlace the shift arm A with a new one.
lf the width of the shift arm A is within the stan-
dard, replace the shift fork or shift piece with a
new ones.
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Page 462 of 1395

Mainshaft Assembly
lndex
Note the Iollowing during reassembly:
. The 3rd/4th, and 5th synchro hubs, and the ball bearing are installed with a press.
. Installthe angular ball bearing with the thin-edged outer race facing the stop ring
prior to reassembling, clean all the parts in solvent, dry them, and apply lubricant to any contact surfaces. The
3rd/4th and 5th svnchro hubs, however, should be installed with a press before lubricating them'
ANGULAR EALL BEARINGCheck for wear and operation.Note the directionof installation.SYNCHRO RINGInspection, page l3 37
SYNCHRO HUBlnspection, page 13-36
SYNCHRO SLEEVEInspection, page 13 36
SPRING
SYNCHRO
SYOP RING
TAPER RING
BEARINGCheck Ior wear and operataon.
COLLAR
RINGInspection, page 13-37
SYNCHRO SPRING
SYNCHRO HUBInspection, page 13_36
SYNCHRO SLEEVEInspection, page 13 36
SPFING
RINGInspection, page 13_37
GEARInspection, page 13_25, 37
COLLARInspection, page 13-24, 25
GEARInspection, page 13 24, 37
Inspection,page 13-37
3RD GEARInspeclton,page 13 24,37
BEARINGCheck for wearano operalton.
Inspection, page 13 26
NEEDLE BEARINGCheck for wear and operat,on.
13-23
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Page 463 of 1395

Mainshaft Assembly
Clearance Inspection
NOTE; lf replacement is required, always replace the
synchro sleeve and hub as a set.
L Support the bearing inner race with a socket. and
Dush down on the mainshaft.
2. Measure the clearance between 2nd and 3rd oears.
Siandard: 0.06 - 0.21 mm 10.002 - 0.008 in)
Servica Limit: 0.3 mm (0.01 in)
lf the clearance is more than the service limit, mea-
sure the thickness of 3rd gear.
Standard: 34.92 - 34.97 mm {1.375 - 1.377 in)
Service Limit 34.8 mm (1.37 in)
3RD GEAR
lf the thickness of 3rd gear is less than the ser-
vice limit, replace 3rd gear with a new one.
lf the thickness of 3rd gear is within the service
limit, replace the 3rd/4th synchro hub with a new
one.
13-24
+
4. Measure the clearance between 4th gear and the
spacer coIar,
Standard: 0.06 - 0.21 mm {0.002 - 0.008 in)
Servic€ Limit: 0.3 mm {0.01 inl
lf the clearance is more than the service limit, mea-
sure distance @ on the spacer collar,
Standard: 26.03 - 26.08 mm {1.025 - 1.027 inl
Service Limit: 26.01 mm {1.02,[ in]
o[-l:-g;;em
fp-rro.ERcoLLAR
6.tf distance @ is less than the service limit, replace
the sDacer collar with a new one.
lf distance @ is within the service limit. measure
the thickness of 4th gear.
Standard: 31.42 - 31.'17 mm 11.237 - L239 inl
Sarvicc Limit:31.3 mm {1.23 in)
lf the thickness of 4th gear is less than the ser-
vice limit, replace 4th gear with a new one.
lf the thickness of 4th gear is within the service
limit, replace the 3rd/4th synchro hub with a new
one,
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Page 464 of 1395

7. Measure the clearance between the spacer collar
and 5th gear.
Standard: 0.06 - 0.21 mm {0.002 - 0.008 in)
Service Limit: 0.3 mm {0.01 in)
MAINSHAFT
SPACER COLLAR
8.
SOCKET5TH GEAR
lf the clearance is more than the service limit, mea-
sure distance @ on the spacer collar
Standard: 26.03 - 26.08 mm 11.025 - 1.027 in)
S€rvico Limit: 26.01 mm (1.024 in)
9.
SPACERCOLLAR
5TH GEARSIDE
lf distance @ is less than the service limit, replace
the spacer collar with a new one.
lf distance @ is within the service limit, measure
the thickness of sth gear.
Standard: 30.92 - 30.97 mm (1.217 - 1.219 in)
Service Limit: 30.8 mm (1.21 in)
r-- ,,srH GEAR
gt Fq
I .J'-----!--\--J-l
lf the thickness of 5th gear is less than the ser-
vice limit, replace 5th gear with a new one.
li the thickness of sth gear is within the service
limit, replace the sth synchro hub with a new
one.
Disassembly
1. Support 5th gear on steel blocks, and press the
mainshaft out of the 5th synchro hub, as shown. Do
not use a jaw-type puller, because it can damage
the gear teeth.
PRESS
I
ACHMENT
In the same manner as above, support the 3rd gear
on steel blocks. and press the mainshaft out of the
3rd/4th svnchro hub, as shown.
PRESS
I
BLOCKS
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