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PART 9-1-
GENERAL IGNITION SYSTEM SERVICE
perature sensing valve and
plug or
clamp the hose.
6. Note engine idle rpm with
the
hose disconnected. If no
change
in
idle speed, the valve is acceptable
up
to this point. If there is a drop in idle
speed of 100 rpm or more, the valve
should be replaced.
7. Install vacuum line on
manifold
fitting; then verify that
the
all season
cooling mixture is up to specifications,
and that the correct radiator cap
is
installed.
8.
Cover the radiator sufficiently
to
induce a high temperature condition.
9. Continue to run the engine
until
the red high temperature light comes
on or the temperature indicated on
the
temperature gauge is at the high
end
of the band indicating an above
nor-
mal temperature.
If the engine idle speed has
by this
time increased
100
rpm
or more, the
temperature sensing valve is satisfac-
tory. If not, it should
be replaced.
Do not overheat the
engine.
DISTR !SUTOR
VACUUM CONTROL
VALVE
DISTRIBUTOR VACUUM UNIT
FIG 23 - Ignition Vacuum Schematic
CARBURETOR
9-13
INTAKE
MANIFOLD
FITTING
ACCESSORY OUTLETS
OR CAPPED
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