Page 475 of 625

7C-1141973 OPEL SERVICE MANUAL
4. Cracking
5. Charring
6. Chips or metal particles imbedded in lining
If a composition drive plates exhibits any of the
above conditions, replacement is required.
B. Wipe steel plates dry and check for heat discolora-
tion. If the surface is smooth and an even color smear
is indicated, the plates should be reused. If severe
heat spot discoloration or surface scufftng is in-
dicated, the plates must be replaced.
23. Install second clutch plates into second clutch
drum with cushion plate (wave washer) first, then
steel plate, composition plate, steel plate, etc. Use
liberal amount of transmission fluid. See Figure 7C-
166.
-I
DRUM
7c-167Figure 7C-167
Disassembly, Inspection and Reassembly of Third
Clutch1. Compress third clutch sprag race and retainer
assembly retaining ring, and remove assembly from
third clutch drum. See Figure
7C-168. Third clutch
hub and input sun gear assembly will be removed at
the same time.
Figure 7C-16624. Install second clutch spacer plate into second
clutch drum. If necessary, expand spacer plate with
screw driver until ends of spacer are evenly butted
together seating tightly into drum. See Figure 7C-
159.
25. Install second clutch spacer retaining ring
26. Install ring gear into second clutch drum.
Figure 7C-168
27. Install ring gear retaining ring.
28. Air check second clutch assembly. See Figure7C- 167.2. Remove input sprag race and retainer assembly
from third clutch hub and input sun gear assembly.
See Figure
7C-169.
Page 477 of 625
7C.1161973 OPEL SERVICE MANUALDRUM
THIRD CLUTCH
PISTON
70174Figure 7C-174
damaged, replace piston. Install new lip seal on pis-
ton. See Figure
7C-175.
CHECKTHI
Figure 7C-175
12. Install new oil lip seal on input shaft inside of
third clutch drum. See Figure
7C-176.13. Inspect steel thrust washer on front face of third
clutch drum. Replace if scored or damaged. See Fig-
ure 7c-177.
14. Install third clutch piston into third clutch drum
using a
.020 music wire crimped into a piece of cop-
per tubing and a liberal amount of transmission fluidFigure 7C-176
Figure 7C-177
so that lip seal is not damaged upon installation. See
Figure
7C-178.15. Install the 12 third clutch piston return springs
onto piston.
16. Install retaining seat.
17. Using compressor tool J-23075 on retaining seat,
compress piston return springs. Care must be taken
so that retaining seat does not catch in snap ring
groove and damage retainer.
18. Install snap ring using snap ring pliers such as J-
8059.
Page 478 of 625

AUTOMATIC TRANSMISSION 7C-117WIRE CRIMPED
INTO COPPERTUBING
Figure 7C-178
19. Inspect condition of the third clutch composition
and steel plates. Do not diagnose a composition
drive plate by color,A. Dry composition plates with compressed air and
inspect the composition surface for:
1. Pitting and flaking
2. Wear
3. Glazing
4. Cracking
5. Charring
6. Chips or metal particles imbedded in lining
If a composition drive plate exhibits any of the above
conditions, replacement is required.
B. Wipe steel plates dry and check for heat discolora-
tion. If the surface is smooth and an even color smear
is indicated, the plates should be reused. If severe
heat spot discoloration or surface
scutXng is in-
dicated, the plates must be replaced.
20. Install third clutch plates into third clutch drum
beginning with a steel plate, composition plate, steel
plate, composition plate, etc. Use a liberal amount of
transmission fluid.
21. Inspect thrust washer and needle thrust bearing
for damage. Replace if necessary.
22. Install thrust washer and bearing onto input
shaft. Secure with petroleum jelly (unmedicated).23. Inspect sprag assembly for wear, damage orsprags that freely fall out of cage. Inspect input sun
gear for chipped or nicked teeth or abnormal wear.
Replace part if necessary.
24. Install sprag onto third clutch hub with groove
on sprag cage outer diameter toward input sun gear.
See Figure
7C-179.Figure 7C-179
25. Install sprag race and retainer assembly over
sprag assembly. Holding input sun gear with left
hand, sprag race and retainer assembly should “lock
up” when turned with right hand in a clockwise
direction and should rotate freely when turned coun-
terclockwise. See Figure
7C-180.Figure 7C-180