Pontiac 1957 Owner's Manual page 20

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CLUTCH
PROLONGING CLUTCH LIFE-The clutch
in your
Pontiac
will
not require much attention due to the use of clutch throwout
ball
bearing which
is
lubricated for life at the factory. However, normal
wear
in the clutch facings
will result
in
a
gradual change in the
"pedal lash" .
Excessive wear may be caused
by "riding"
the clutch, the habit some
drivers have
of
resting the left
foot
on the
clutch,
thus keeping the
releasing parts in contact but not disengaging. Excessive wear can
also be caused by rough usage. Letting the clutch up "with a bang"
is not only hard on the clutch
itself
but also
on
tires and the entire
car. Another practice which puts needless wear
on
the clutch is
"holding" your
car
on
a hill by partially engagi.J;lg the clutch instead
of using the brake.
.
CLUTCH PEDAL ADJUSTMENT-The
clutch pedal
should
be
adjusted
from time
to time so that it has some free travel
before the clutch actually begins to dis-
engage.
The pressure of one finger should
be enough to push the pedal in about an inch before the resistance of
the clutch spring is
felt.
If there is little or no "pedal lash" the clutch
may be slipping, which will cause it to wear
out faster.
If there is too
much "pedal lash", the clutch may not disengage completely and
cause gear shifting trouble. When
"pedal
lash"
is less than
%:
inch
or more than lYs inches, an adjustment should be made.
[ 17]

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