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7. Turn the
cen/"
carburetor throttle valve adjusting
screw IIBn until the eogine is running 475 RPM on
the tachometer.
8.
Tum the rear carburetor idle mixture adjusting screw
"Au
Y8
turn right or left, to obtain maximum RPM.
9.
Repeat Slep 9
on
the'tnl" andjronl carbureto",.
10.
If idle RPM has now changed, then
turn
the
,tnII!r
carburetor
throttle
valve
adjusting screw "B" until the
engine is again running at 475
RPM.
11. Repeat steps
9,
10 and 11. These adjustments may
have to be repeated several times to obtain proper
idle RPM and idle mixture adjustment.
TRAN SMISS ION
The Corvette Powerglidc transmission is an automatic
hydraulic three element torque converter with planetary
gears for reverse and low.
It
is essentially the same as the
1954 Chevrolet passenger car Powerglide with automatic
shift
features.
No oil cooler is required with the transmis-
.ion
as
the high englne torque available, coupled with the
lesser demands made for torque converter multiplication
p
with this light weight car, makes the use of an oil cooler
unnecessary.
CODLING SYSTEM
The cooling system is
designed
with two
purposes
in
mind;
first, to carry off
a certain amount of heat created in the
engine so
it
will not
operate at too
high a temperalure;
and
second,
to maintain tbe
engine heat at the temperature
whicb will produce
the most
efficient and
economical opera-
tion of the
engine.
The
cooling
system cOllBists
of
radiator
with
auxiliary
tanlt,
fan, water
pump, thermostat
t
water
passages
in cylinder
block and cylinder head, and the necessary
connectioDl
and fittings.
An auxiliary tank witb
a
four
pound
pressure
cap is
located
o.
n the upper right side
of the engine slightly above
the top
of tbe cylinder head
.
This
tank retains a
reserve supply
water
to
keep the cooling
system
filled
.
When the cooling'
system
requires
water,
it is added
through the
auxili
tank filler opening
as
there
is
no opening
in
the radio
top tank.
A
vapor line
connects
tbe radiator top tanlt
10
the auxiliary tank to
vent
air
or vapor
from the radiator
10
the auxiliary tank wbere it
can escape througb the
p .....
un:
cap.
This
vapor
line
can.
n ot
be bent so
as
to
create
a
sag •
water or
vapor
may
accumuJate in this pocket and
prevtIU
the traOBfer
of
air.
Tbe ovcrllow
line
is
attacbed to the
filler
neck and drains at the front
of the engine.
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