Chevrolet 1977 10 Series, Руководство по ремонту, Страница: 256 / 468

(200)7A-20
OVERHAUL MANUAL
Fig. 7A-8 1 A - P r o p e r L o c a ti o n o f L o w and Reverse Ho u sin g to
Case S p a c e r
composition-faced and flat steel clutch plates. (See Clutch
Plate Usage C hart, Fig. 7A-82A).
2. Install low and reverse clutch housing to case spacer
ring in case (Fig. 7A-81A).
3. Install low and reverse clutch housing assembly
aligning reverse clutch housing feed hole to reverse clutch
case feed passage, using J-25012 (Fig. 7A-83A).
If the low and reverse clutch housing does not seat past
the case snap ring groove, proceed as follows:
a. Remove tool J-25012.
b. Using rear sun gear and input drum as a tool, install
input drum and rear sun gear in case.
c. R otate rear sun gear back and forth, tapping lightly
with input drum , to align roller clutch race and low and
reverse clutch hub splines (Fig. 7A-84A).
d. Remove tool (input drum and rear sun gear).
Fig. 7 A - 8 3 A - - ln s t a llin g L o w and Reverse Clu tch H o u sin g
NOTE:
It may be necessary to loosen adjusting screw
on J-25013-5 on output shaft to install snap ring,
e.
Repeat the above steps if low and reverse clutch
housing is not fully seated past case snap ring groove.
4. Install low and reverse clutch housing to case snap
ring, flat side against housing (beveled side up). Position
snap ring gap on opposite side of parking actuator rod.
FRONT GEAR PARTS
Rear Sun Gear and Input Drum (Fig. 7A-85A)
Inspection
1. Inspect rear sun gear for cracks, splits, damage
spline, worn gear or journals and plugged lubrication holes
(Fig. 7A-85A).
2. Inspect rear sun gear bushing for damage or scoring.
3. If necessary, remove input drum to rear sun gear
snap ring and remove sun gear from input drum.
M O D E L
D IR EC T CLUTCH FORW ARD CLUTCH LO & REV. C LUTCH
Flat Steel
Com position
Plates
Waved Plates Flat Steel
Com position
Plates
Flat
Steel
C om position
Plates
No.
Thickness No. No.
Thickness No.
Thickness No. No. No.
CU, CN, CZ 4 2.324m m
(.0 9 1 ") 4 1 1.585m m
(.0 6 2 " )
2 1.969m m
(.0 7 7 " )
3
5
4-G rooved
CX 3 2.324m m
(.0 9 1 ") 3 1
1,585m m
(.0 6 2 ")
2
1.969m m
(.0 7 7 " )
3 5 4-G rooved
CD, CE, CR,
CY
5 2.324m m
(.0 9 1 " ) 5 1 1.585m m
(.0 6 2 ") 3 1.969m m
(.0 7 7 ") 4 7 6 -N o n -
Grooved
N O T E : * T h e direct and forw ard clutch flat steel clutch plates should be identified by their thickness.
• The waved plate has (3) teeth, equally spaced, om itted, for identification.
• The direct and forw ard production installed com position-faced clutch plates must not be interchanged.
For service, direct and forw ard clutch use the same com position-faced plates.
• All lo and reverse clutch composition-faced plates are serviced w ith the grooved com position-faced plates.
LO& REVERSE
CLUTCH HOUSING
TO CASE SPACER
L O & REVERSE
CLUTCH HOUSING
Fig. 7A -8 2A -C lu tc h Plate Usage