Opel 1900 1973 Service Manual page 485

1973 OPEL SERVICE MANUAL
14. Remove the downshift timing valve plug retain-
ing pin and remove downshift timing valve plug.
Remove the low speed downshift timing valve and
spring.
15. Remove the manual low and r&erse control
valve retaining pin. Remove the spring and the
manual low control valve and the reverse control
valve.
16. Remove the l-2 accumulator valve retaining pin
and remove the l-2 accumulator valve plug, l-2 ac-
cumulator valve and spring.
17. A clean work area which is free of dirt and dust
should be used to inspect, clean and install the valves
in the valve body. Handle valve components with
clean hands and tools. Since most valve failures are
caused initially by dirt or other foreign matter pre-
venting a valve from functioning properly, a
thorough cleaning of all the components with a
cleaning solvent is essential. Do not use paraffin to
Location
Pump Pressure Regulator
Pump Priming V a l v e ........................................................... . ............
Valve Body 1.2 Shift V a l v e ......................................................................
Valve Body 2-3 Shift V a l v e ......................................................................
Valve Body Detent Pressure Regulator V a l v e ......................................
High-Speed
Valve Body
Low-Speed Timing V a l v e ....................................................
Valve Body
Reverse and Low Control Valve ........................................
Valve Body
Detent V a l v e ..........................................................................
Valve Body 1-2 Accumulator Valve ........................................................
3 - 2 Control V a l v e ..................................................................
Valve Body
Secondary Governor
Gov. Body
Accumulator Piston ..............................................................
Valve Body
Servo
Case
Servo Cushion ........................................................................
Clutch Pack Clutch Return (All) ................................................................
22. Install spring and accumulator piston in valve
body.
23. Compress accumulator piston with C-clamp and
install retaining ring.
24. Install new valve body gasket.
25. Bolt the transfer plate and gasket to the valve
body. Torque to 6-8 lbs. ft.
Disassembly, Inspection and Reassembly of Case
1. Inspect case for damage. See Figure 7C-202.
SPRING IDENTIFICATION CHART
Application
Valve ....................................................
Timing Valve ....................................................
Valve ................................................
Return ..........................................................................
clean out the valve body passages and valve bore.
Compressed air may be used to blow out the pas-
sages.
18. Inspect each valve for free movement in its re-
spective bore in t.he valve body. If necessary, use
crocus cloth to remove small burrs on a valve. Do
not remove the sharp edges of the valves as these
edges perform a cleaning action within the bore.
19. Inspect the valve springs for distortion or col-
lapsed coils. Replace the entire valve body assembly
if any parts are damaged.
20. Inspect the transfer plate for dents or distortion.
Replace transfer plate if necessary.
21. Reassemble the valves, springs, plugs and retain-
ing pins in their proper location and order into the
valve body using a liberal amount of transmission
fluid. See the spring data chart which includes the
spring identification sizes in the event springs have
been disarranged.
Height
2 . 7 5 6
1 . 0 4 3
2 . 4 6 7
1 . 7 6 9
1 . 6 2 5
1 . 3 4 9
1 . 3 8 0
1 . 3 4 3
2 . 5 6 9
1 . 0 7 2
1 . 8 5 3
1 . 3 1 7
1 . 9 1 7
2 . 2 4 0
1 . 0 3 9
1 . 0 5 0
2. Inspect and clean oil passages with cleaning sol-
vent and air.
3. Check for good retention of band anchor pins.
4. Inspect all threaded holes for thread damage.
5. Inspect detent valve and modulator valve bores for
scratches or scoring.
6. Inspect case bushing inside of case at rear. If
tool J-23 130-3 and driver handle J-8092. See Figure
Outer
Diameter
, 4 7 4
, 4 0 6
1 . 2 2 4
1 . 8 5 0
1 . 2 6 7