1973 OPEL GT-R light

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Page 261 of 625

OPEL GT-R 1973  Service Manual CONTENTS
SubjectPage No.
DESCRIPTION AND OPERATION:
Power
BrakeBooster. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Master
Cylinder
. .

Page 265 of 625

OPEL GT-R 1973  Service Manual 5A- 61973 OPEL SERVICE MANUAL
ing on dusty and sandy roads - the filter and sound
deadener should occasionally be replaced. To do so,
brake booster has to be removed without detaching
brake master cyl

Page 266 of 625

OPEL GT-R 1973  Service Manual POWER BRAKE BOOSTER AND MASTER CYLINDER5A- 7cylinder to brake booster and torque nuts to 14 
Ib.ft.on the GT and 12 
lb.ft. on the Opel 1900 and Manta.
2. Position assembly into brake booster bracket

Page 267 of 625

OPEL GT-R 1973  Service Manual 5A- 81973 OPEL SERVICE MANUAL
4. If required, adjust mechanically actuated stop
light switch. Pedal travel of 5/S” to 1” should actu-
ate switch. Add or subtract washers between bracket
and switch

Page 273 of 625

OPEL GT-R 1973  Service Manual 5B- 141973 OPEL SERVICE MANUALConditionPossible CauseCorrection2. Partial system failure.2. Check front and rear brake system
and repair, if necessary. Also, check
brake warning light, if a failed
sys

Page 278 of 625

OPEL GT-R 1973  Service Manual DISC BRAKES5B- 19
CAUTION:
Fasteners in Steps 7 and 9 are important
attachingparts in that they cooId affect theperfom-
ante of vital components and systems, and/or couJd
resuJt in major repair expens

Page 279 of 625

OPEL GT-R 1973  Service Manual 58.201973 OPEL SERVICE MANUAL
half, and blow out pistons, carefully regulating air
flow. When removing pistons, proceed with extreme
caution and always keep the fingers ofthe hand hold-
ing the brake

Page 280 of 625

OPEL GT-R 1973  Service Manual DISC BRAKES5B- 21caliper half collars and the clamp rings are correctly
positioned on rubber seals.
12. Install brake caliper on steering knuckle, torqu-
ing bolts to 72 lb.ft.or with an equivalent pa