Opel 1900 1973, Service Manual, Page: 365 / 625

4 1973 SERVICE MANUAL
Condition
P o s s i b l e C a u s e
Correction
Heat-blued driven plate
and pressure
plate
assembly.
Improper pedal 1. Replace
only
driven
plate,
and
a d j u s t m e n t . adjust clutch pedal and cable.
Grab and chatter with
oil present on clutch
assembly. 1. Oil leak. 1. Correct oil leakage, clean
pressure plate in solvent, replace
driven plate and adjust pedal lash.
MAINTENANCE AND ADJUSTMENTS
C L U T C H L A S H A D J U S T M E N T
G T
Pedal lash, free pedal travel must be adjusted occa-
sionally to compensate for normal wear of the clutch
facings. As the driven plate wears thinner, pedal lash
decreases. Adjust clutch pedal free travel only with
ball stud located on right side of clutch housing if
cable length is not to be changed. To adjust pedal
lash proceed as follows:
1. Loosen lock nut on ball stud end located to the
right of the transmission on the clutch housing. Posi-
tion ball stud so that the outer end protrudes
inches out of housing and finger tighten lock nut. See
Figures and
2. Adjust ball stud, pivoting clutch release fork, to
obtain
to inches pedal lash, free pedal. See
Figure
Opel 1900 and Manta
The clutch actuation works without clutch pedal free
travel. A readjustment of the clutch is only required
if the indicator lamp at the instrument panel lights
In synchronism with the gradual wear of the clutch
linings the clutch pedal travels from its basic
adjust-
ment position upwards, towards driver. If the
clutch lining wear has reached such an extent that
the clutch pedal rests against switch, the indicator
lamp at the instrument panel lights up.
This is an indication that the clutch pedal position
has to be corrected to ensure proper clutch operat-
ion.
To proper clutch operation, observe the fol-
lowing adjustment instructions.. For all adjustment
dimensions, refer to Figure
1. If the parking brake is provided with an indicator
lamp, the parking brake has to be disengaged,
wise the same indicator lamp as for the clutch lights
2. Carry out adjustment only with ball stud on clutch
housing whereby the distance (Item 20, Figure
between clutch housing contacting surface and
clutch release lever has to be adjusted in the rear to
4 inches.
Clutch Control Cable on
Installation of a New Clutch Disc or
Control Wire)
G T
1. Adjust ball stud so that outer end protrudes ap-
proximately inches out of clutch housing.
2. Adjust distance between release lever and clutch
housing face at eye for control cable to approxi-
mately 4
inches. See Figure Hold cable in
this position and place E-ring two grooves ahead of
washer on rubber grommet. Clutch pedal free travel
is now between
and 1 inches and clutch
release bearing has proper clearance from pressure
plate.
Opel 1900 and Manta
1. Adjust ball stud on clutch housing to basic dimen-
sion of approximately inch. With lower end of
control wire unhooked, push clutch release
lever towards the front so that the clutch release
bearing rests against clutch spring. Now, adjust ball
stud so that the dimension (Item 20, Figure
between clutch housing contacting surface and
clutch release lever amounts in the rear to 4
inches.
2. Pull reattached control wire out of dash
panel so that clutch pedal rests against switch (in-
dicator lamp lights up).
3. In this position, install lockwasher at upper con-
trol wire attachment three grooves towards the front,
thereby completing control wire adjustment.