Mazda 121 - Primary Shaft; 3 Rd Gear, 4 Th Gear

J
TRANSAXLE
3FD
GEAB
Pdmary Shatl
Note
.
ll
the
prlmary
shaft
is replaced,
adiust
the bearing
pretoad. (Reler io
Page
J-39.)
1.
Inspect the
primary
shaft
runout
Maximum
runout:
0.0lsmm
(0.0005
in)
2.
Inspect the splines
tor
damage
and
wear.
3. Insbect
the
gear
teeth
for damage'
wear, and cracks
4.
Inspect the oil
passage
for blockage.
3rd
gear,
4th
gear
'1.
l\,leasure the clearance
between
the shaft
and
gears
BA
2.
Inspect the
synchronizer
cones
lor
weat.
3.
Inspect the
gear
teeth
for damage,
wear'
and cracKs.
4.
Insbect the
Contact surfaces
of the synchronizer
ring and
the 3rd/4th
gear
for wear
and cracks
Bearing
Insoect the
bearing
ior damage
or
rough
rotation.
0rFoJx063
J-28
mm
(.n)
Shaft
srde
(outer
diameleo
Ge side
(inner
diamelet
3rd
gear
side
A
32.945-32.970
(1
.297-
1 .298)
33.000-33.025
(1.299-1.30O)
4th
geff
side
B
2A.545-28.570
0
.123-1
.125)
2A.6@-24.621
l1
.126-1
.127
)