Page 377 of 1413

Synchro Ring, Gear
r Inspection
1. Inspect the synchro ring and gear.
A: lnspect the inside of the synchro ring for wear.
B: Inspect the synchro sleeve teeth and matching
teeth on the synchro ring for wear (rounded off).
CCGOOD WORN
C: Inspect the synchro sleeve teeth and matching
teeth on the gear for wear (rounded offl.
oo
GOOD WORN
D: Inspect the gear hub thrust surface for wear.
E: Inspect the cone surface for wear and roughness.
F: Inspect the teeth on all gears for uneven wear.
scoring, galling, and cracks.
Coat the cone surface of the gear with oil, and place
the synchro ring on the matching gear, Rotate the
ring, making sure that it does not slip.
Measure the clearance between the synchro ring
and gear allthe way around.
NOTE: Hold the synchro ring against the gear even-
ly while measuring the clearance.
Synchro Ring-to-Ggar Clgarance
Standard: 0.85 - 1.10 mm(0.033 - 0.0/B in)
Service Limit:0.i1 mm 10.02 inl
Double Cone Synchro-to-Gear Cloaiance
Standald:
@: {Outer Synchro Ring to Synchro Cone)
0.5 - 1.0 mm 10.02 - 0.0i1in)
@: lSynchro Cone to Goar)
0.5 - 1.0 mm (0.02 - 0.04 in)
O: loutsr Synchro Ring to Gsarl
0.95 - 1.68 mm (0.037 - 0.066 inl
Service Limit:
6): 0.3 mm 10.01 inl
@: 0.3 mm t0.01 inl
G): 0.6 mm (0.02 in)
lf the clearance is less than the service limit, replace
the synchro ring and synchro cone.
SYNCHRO SPBING
SYNCHRO RING
SYNCHRO CONE
SYNCHRO RING
o
13-35
Page 378 of 1413
Clutch Housing Bearing
Replacement
Mainrhaft:
1. Remove the ball bearing using the special tools as
shown.
3/8' - 16 SI.IDE HAMMCR(commercially av6ilable)
CTUTCH
ADJUSTABIT AEARINGPULER, 25 - a0 mrn07736 - A01moA
2. Remove the oil seal from the clutch housing.
CLUTCH HOUSING
3. Drive the new oil seal into the clutch housing using
the specialtools as shown.
ATTACHMEIVT, a2 x 4t rnm0r7a5 - 0010300
()|L SEAIRoplacs.
Drive the ball bearing into the clutch housing usin!
the sDecial tools as shown.
13-36
BATI. BEAMIO
Page 379 of 1413
Countcr'h!ft:
'1. Bsnd the tab on the lock washer down, then remove
the bolt 8nd bearing retainer plate.
Remove th€ needle bearing using the specisl
as shown, then remove the oil guide pl8te.
3rE' - 16 SUI'€ HAiiMER
{commorcially availabls)
lools
AD.'USTABII BEARIITGPULIIR, 25 - ao mm07t36 - A0rm0 a
CLUTCH HOUSING
3. Position the oil guide plate and new needle bearing
in the bore of the clutch housing, then drive in the
needle bearing using the specialtools as shown.
NOTE: Position the needle bearing with the oil hole
facing up.
OIL GUIDC PLATE
CI-UTCHHOUSING
Install the bearing retainer plate and new lock wash-
er, then bend the tab againstthe bolt head.
8x 10 mm15 N.m ll.5 kd.m, 11 lbf.ttl
LOCKWASHEARepl6ce.
13-37
Page 380 of 1413

Mainshaft Thrust Glearance
1. Remove the 72 mm thrust shim and oil guide plate
from the transmission housing.
72 mm THRUST SHIM
TRANSMISSIONHOUSINGOIL GUIDE PLATE
Adjustment
\.u
o
Bo
lnstall the 3rd/4th synchro hub, spacer collar, sth
synchro hub, spacer, and ball bearing on the main-
shaft. then install the above assembly in the trans-
mission housing.
Installthe washer on the mainshaft.
Measure distance @ between the end of the trans-
mission housing and washer.
NOTE:
. Use a straight edge and vernief caliper.
. Measure at three locations and averaoe the read-
Ing.END olTRANSMISSIONHOUSINGMAINSHAFT
WASHER
fr
13-38
AALL AEARING
. Try the 1.68 mm (0.0661 in) shim.
5. Measure distance @ betlveen the end of the clutch
housing and bearing inner race.
NOTE:
. Use a straight edge and depth gauge.
a Measure at three locations and average the read-
Ings.
Select the prcpet 72 mm thrust shim from the chart
by using the formula below.
NOTE: Use only one 72 mm thrust shim.
Shim Sslsction Formula:
From the measurements you made in steps 4 and 5:-1. Add distance @ (step 5lto distance @ (step 4).
-2. From this number. subtract 0.93 (which is the
midpoint of the flex range of the clutch housing
bearing spring washerl.
-3. Take this number and compare it to the avaif
able shim sizes in the chart.
(For example)
B:2.39
+ C: O.22
2.61- 0.93
1.68
END of CLUTCH HOUSING
INNEB RACE ot BALL BEARltac
Page 381 of 1413

72 mm Thrust Shim
Part NumberThickness
23931 - P21 -0000.60 mm (0.0236 in)
23932-P21 -0000.63 mm (0.0248 in)
c23933 - P21 -0000.66 mm {0.0260 in}
D23934-P21 -0000.69 mm (0.0272 in)
23935 - P21 -0000.72 mm (0.0283 in)
F23936-P21 -0000.75 mm (0.0295 in)
23937-P21 -0000.78 mm (0.0307 in)
23938-P21 -0000.81 mm (0.0319 in)
23939-P21 -0000.84 mm (0.0331 in)
J23940-P2r-0000.87 mm (0.0343 in)
K23941 - P21 -0000.90 mm (0.0354 in)
L23912-P21-OOO0.93 mm (0.0366 in)
M23943-P21 -0000.96 mm (0.0378 in)
N23944-P21 -0000.99 mm (0.0390 in)
o23915 - P21 -0001.02 mm (0.0402 in)
P23946 - P21 ,0001.05 mm (0.04'13 in)
o23947 -P21 -0001.08 mm (0.0425 in)
23948 - P21 0001.11 mm {0.0437 in}
s23919-P21 -0001.14 mm (0.0449 inl
T23950-P21 -0001.17 mm (0.0461 in)
23951 - P21 -0001.20 mm {0.0472 in)
23952 - P21 0001.23 mm {0.0484 in)
23953-P21 -0001.26 mm (0.0496 in)
X23954-P2r-0001.29 mm 10.0508 in)
23955-P21 -0001.32 mm 10.0520 in)
z239s6-P21 ,0001.35 mm (0.0531 in)
23957-P21 -0001.38 mm (0.0543 inl
AB23958 - P21 -0001.41 mm (0.0555 in)
AC23959 - P21 -0001.44 mm (0.0567 in)
AD23960 - P21 -0001.47 mm (0.0579 in)
AE23961 -P21 -0001.50 mm {0.0591 in)
23962 P21 ,0001.53 mm {0.0602 in)
23963-P21 -0001.56 mm {0.0614 in}
AH23964 - P2'1 -0001.59 mm (0.0626 in)
AI23965 - P2'1 -0001.62 mm (0.0638 in)
23966-P21 -0001.65 mm (0.0650 in)
AK23967-P21 -0001.68 mm {0.0661 in)
23968 - P21 -0001.71 mm 10.0673 in)
23969 - P21 0001.74 mm (0.0685 in)
AN23970-P21 -000'1.77 mm (0.0697 in)
AO23971 P21 0001.80 mm (0.0709 in)
7. Check the thrust clearance in the manner described
below.
NOTE: Carry out the measurement at normal room
remperarure.
-1. Install the thrust shim selected and oil guide
plate in th€ transmission housing.
?2 mm THRUSTotLPLATE
TRANSMISSIONHOUSING
Install the spring
ball bearing.
washer and washer on the
NOTE:
. Clean the spring washer, washer and thrust shim
throughly before instaliation.
. Install the spring washer. washer and thrust
shim properly.
a-=s-.r*os".^
.,,-B*^INGWASHER
-4.
Installthe mainshaft in the clutch housing.
Place the transmission housing over the main-
shaft and onto the clutch housing.
Tighten the clutch and transmission housings
with severalS mm bolts.
NOTE: lt is not necessary to use sealing agent
between the housings.
8 x 1.25 mm
27 N.m {2.8 kgf.m, 20 lbf.ft}
Tap the mainshaft with a plastic hammer,
(cont'd)
13-39
Page 382 of 1413