1973 OPEL GT-R Service Manual

7A- 81973 OPEL SERVICE MANUAL\\“\314”TO ,l
17
16
1.E-RING12. CLUTCH PEDAL FREE TRAVEL-
2.WASHER3/4” TO 1 l/4”
3.RUBBER GROMMET13. RETURN SPRING
4.WASHER14. RELEASE LEVER
5.SLEEVE15. RUBBER BELLOWS
6.DASH PANEL16. BALL STUD LOCK NUT
7. BOWDEN CONTROL CABLE17. CLUTCH HOUSING
8.BRACKET18. BALL STUD
9. WASHER, HAIRPIN CLIP19. BOWDEN CONTROL CABLE
10.RUBBER STOP20. DISTANCE BETWEEN RELEASE
11.CLUTCH PEDALLEVER AND CLUTCH HOUSING
7A.6\
Figure
7A-6 Clutch Pedal Lash - GT Model

CLUTCHlA- 9
1.2.3.4.
8.
-9.
-11.BRACKET
1.“E” RING12.CABLE
2.WASHER13.RELEASE LEVER
3.RUBBER GROMMET
14.BALL STUD4.CLUTCH OPERATINGDAMPER
15.CLUTCH HOUSING
5.GROMMET16.BALL STUD LOCK NUT
6.WASHER17.RUBBER BELLOWS7.
“E” RING18.CABLE SUPPORT BRACKET
8. ADJUSTMENT SWITCH19. NUT, CABLE SUPPORT BRACKET
9.CLUTCH PEDAL20.DISTANCE BETWEEN RELEASE
10. RETURN SPRING
LEVER AND CLUTCH HOUSINGJA-7
Figure JA-7 Clutch Pedal Adjustment
- Opel 1900 and Manta

7A- 101973 OPEL SERVICE MANUAL
Arrangement Of Clutch
1 Clutch release lever14 Clutch ossy. bolt, lockwasher
2 Slot in lever for control cable boll15 Hollow space under felt ring filled
endwith molybdenum disulfide paste
3Assembly marks
4Clutch assembly
5Flywheel
6 Flywheel ring gear
7Thrust pin
8Retaining spring
9Crankshaft
10 Clutch gear pilot bushing
11Oil seal
12Flywheel bolt
13Clutch housing
16 Felt ring
17 Clutch release bearing
18 Clutch gear ball beorirq
19 Clutch gear
20 Snap ring
21 Paper gasket
22 Clutch gear oil seal
23 Clutch release bearing sleeve
24 Clutch disc, long end of hub facing
forward.
?A-8Figure
7A-8 Arrangement of Clutch

Figure 7A-9 Exploded View of Clutch Pedal and Housing

7B- 121973 OPEL SERVICE MANUAL
MANUAL TRANSMISSION
CONTENTS
Subject
DESCRIPTION AND OPERATION:
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Power
Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DIAGNOSIS: (Not Applicable)
MAINTENANCE AND ADJUSTMENTS:
Adjusting
ReverseGearshiftBlocker. . . . . . . . . . . . . . . . . . . . . . . . . .Shift Lever Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ServicingGearshift
Lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MAJOR REPAIR:
Transmission
Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Installation
ofTransmission. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Removing and Installing
Speed0 Driven Gear
(Transmission
Removed). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ReplacingBushinginSelectorLever. . . . . . . . . . . . . . . . . . . . . . . . . .Transmission
Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Transmission
Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SPECIFICATIONS:
Specifications ..,....._....,......,.....,......,.,.....,,.,..,......,.,....,........
Page No.
78-12
7B-13
78-1978-l
9
7B-19
78-22
78-22
78-23
78-23
78-23
78-28
78-33

MANUAL TRANSMISSION78.13POWER FLOWIST
& 2ND GEAR
SLIDING GEARr2yDmSPEEDGEAR
1ST SPEED
GEAR ‘EREVERSE
-IDLER GEAR
COUNTERSHAFT GEAR
+/UNIT
- IST SPEED GEAR~LCOUNTERSHAFT GEAR UNITCOUNTERSHAFT GEAR UNIT
f-t3RD SPEED GEAR
REVERSE SPEED GEARCOUNTERSHAFT GEAR
UNIT - 2ND SPEED GEAR
POWER FLOW. NEUTRAL POSITION
Figure 78.1
Neutral PositionDRIVE(INPUT1
ERSHAFT
R UNIT
‘E GEAR
78-lThe countershaft gear unit and the mainshaft lst,
Znd, and 3rd speed gears are all idling in “Neutral”
position. The reverse idler gear is not engaged or in
mesh with any gear and, therefore, it is idle.

7B- 141973 OPEL SERVICE MANUAL
POWER FLOW - 1st SPEED
MAIN DRIVE GEAR (INPUT)
COUNTERSHAFT GEAR UNIT 1st SPEED GEAR
1 st SPEED GEAR
1st AND 2nd GEAR SLIDING GEAR1st AND 2nd SPEED SLIDING GEAR GUIDE UNITCOUNTERSHAFT GEAR
UI‘!IT DRIVE GEAR1st SPEED GEAR1st AND 2nd GEAR SLIDING GEAR
,st AND 2nd SPEED SLIDING GEAR GUIDE UN1MAINSHAFT (OUTPUT)
70-2Figure 78.2
First SpeedAfter synchronizing the speeds of the mainshaft and
the 1st speed gear, the 1st and 2nd gear sliding gear
shifts to the rear of the transmission and locks the 1st
speed gear to the mainshaft through the 1st and 2nd
speed sliding gear guide unit. This 1st and 2nd speed
sliding gear guide unit is internally splined to the 1st
and 2nd gear sliding gear and is
exl~ernally splined to
the mainshaft. Both the 3rd speed gear and the 2nd
speed gear are idling. The reverse idler gear is not
engaged with any gear and, therefore, it is idle.
With a 1st speed gear ratio of
3.428:1, the main drive
gear (input) must turn 3.428 revolutions for every
one revolution of the main shaft (output).
IT

MANUAL TRANSMISSION76.15POWER FLOW. 2nd SPEED
MAIN DRIVE GEAR (INPUT)
COUNTERSHAFT GEAR UNIT 2nd SPEED GEAR
2nd SPEED GEAR
1st AND 2nd GEAR SLIDING GEAR
1st AND 2nd SPEED SLIDING GEAR GUIDE UNITCOUNTERSHAFT GEAR UNIT DRIVE GEAR
2nd SPEED GEAR
1st AND 2nd GEAR SLIDING GEAR
Ist AND 2nd SPEED SLIDING GEAR GUIDE UIMAINSHAFT (OUTPUT)
76Figure 78.3
Second SpeedAfter synchronizing the speeds of the mainshaft and
the 2nd speed gear, the 1st and 2nd gear sliding gear
shifts toward the front of the transmission and locks
the 2nd speed gear to the mainshaft through the 1st
and 2nd speed sliding gear guide unit. This 1st and
2nd speed sliding gear guide unit is internally splined
to the 1st and 2nd gear sliding gear and is externally
splined to the mainshaft. Both the 3rd speed gear and
the 1st speed gear are idling. The reverse idler gear
is not engaged with any gear and, therefore, it is
idle.
With a 2nd speed gear ratio of
2.156:1, the main
drive gear (input) must turn 2.156 revolutions for
every one revolution of the mainshaft (output).
VIT
i-3