Nissan Silvia. Instruction — part 304
FMT046
ASSEMBLY
NMMT0043
Apply multi-purpose grease onto oil seal lips. Using a drift (SST),
install the oil seal to the front cover.
CAUTION:
Do not reuse the removed oil seal. Always use a new oil seal.
FMT047
Reverse Idler Gear
INSPECTION
NMMT0044
Install the reverse idler gear to the reverse idler shaft and set the
gear in a vice to measure the oil clearance.
Oil clearance: 0.040 - 0.082 mm (0.0016 - 0.0032 in)
FMT048
Main Drive Gear
REMOVAL AND INSTALLATION
NMMT0045
Remove/install the mainshaft assembly for this operation.
Refer to “Clutch Housing”, MT-25.
DISASSEMBLY
NMMT0046
1.
Remove the needle bearing from the main drive shaft.
FMT049
2.
Remove the snap ring from the main drive gear.
FMT050
3.
Using a bearing replacer (multi-purpose tool), remove the main
drive gear bearing with a press.
GI
MA
EM
LC
EC
FE
CL
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
REPAIR FOR COMPONENT PARTS
Front Cover (Cont’d)
MT-29
FMT035
INSPECTION
NMMT0064
I
Check the gears for any damage, wear, or flaking.
I
Press the 5th baulk ring closely to the main drive gear to mea-
sure the clearance.
Clearance: 0.80 - 1.60 mm (0.0315 - 0.0630 in)
FMT036
I
Make sure that, when trying to rotate the 5th baulk ring pressed
closely to the main drive gear, the baulk ring does not slip.
FMT051
ASSEMBLY
NMMT0047
1.
Using a drift (SST), install the main drive gear bearing with a
press.
FMT052
2.
Select a snap ring from those shown in the table to allow the
clearance specified below.
Allowable clearance: 0 - 0.1 mm (0 - 0.004 in)
Main drive gear snap ring
Unit: mm (in)
Thickness
Part No.
Discriminated
mark
1.95 (0.0768)
32204 - 89F01
0
2.00 (0.0787)
32204 - 89F02
1
2.05 (0.0807)
32204 - 89F03
2
2.10 (0.0827)
32204 - 89F04
3
2.15 (0.0846)
32204 - 89F05
4
2.20 (0.0866)
32204 - 89F06
5
REPAIR FOR COMPONENT PARTS
Main Drive Gear (Cont’d)
MT-30
Mainshaft
REMOVAL AND INSTALLATION
NMMT0048
Refer to “Clutch Housing”, MT-25.
FMT053
FMT054
INSPECTION BEFORE DISASSEMBLY
NMMT0049
1.
Measure the end play of each gear. Replace the snap ring if
the measurement is out of the specified range.
Unit: mm (in)
Gear
End play
1st main gear
2nd main gear
Reverse main gear
0.15 - 0.40 (0.0059 - 0.0157)
0.10 - 0.45 (0.0039 - 0.0177)
0.10 - 0.45 (0.0039 - 0.0177)
GI
MA
EM
LC
EC
FE
CL
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
REPAIR FOR COMPONENT PARTS
Mainshaft
MT-31
FMT055
2.
Measure the oil clearance for each gear with a dial gauge. If
the clearance is out of the specified range, check the gear,
needle bearing and shaft.
Unit: mm (in)
Gear
Oil clearance
1st main gear
2nd main gear
Reverse main gear
0.015 - 0.066 (0.0006 - 0.0026)
FMT056
DISASSEMBLY
NMMT0050
1.
Remove the snap ring on the side of the 6th main gear.
2.
Set a bearing replacer (Multi-purpose tool) on the 1st main
gear, remove the 6th main gear, mainshaft bearing, inner race,
needle bearing, steel ball and 1st main gear with a press.
FMT057
3.
Remove the inner baulk ring, synchronizer cone and outer
baulk ring.
4.
Set a bearing replacer (Multi-purpose tool) onto the 2nd main
gear, remove the 1st & 2nd coupling sleeve & synchronizer
hub, 2nd main gear and needle bearing with a press.
5.
Remove the 1st & 2nd coupling sleeve from the synchronizer
hub.
CAUTION:
I
Use a sheet of paper or cloth to cover the insert balls and
insert springs to avoid losing them during work.
I
Be careful not to deform the insert springs.
FMT058
6.
Remove the snap ring on the side of the reverse gear.
7.
Place a bearing replacer (Multi-purpose tool) and a drift (SST)
onto the reverse main gear, remove the 5th & reverse coupling
sleeve & synchronizer hub, reverse main gear and needle
bearing with a press.
8.
Remove the 5th & reverse coupling sleeve from the synchro-
nizer hub.
CAUTION:
I
Use a sheet of paper or cloth to cover the insert balls and
insert springs to avoid losing them during work.
I
Be careful not to deform the insert springs.
FMT059
INSPECTION
NMMT0051
Mainshaft
NMMT0051S01
I
Check the gears for any damage, wear or flaking.
I
Support the mainshaft with a V-block to check for runout by
measuring at each position shown in the figure. If the mea-
sured value exceeds the limit, replace the shaft.
Limit: Less than 0.03 mm (0.0012 in)
REPAIR FOR COMPONENT PARTS
Mainshaft (Cont’d)
MT-32
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