Downloaded from www.Manualslib.com manuals search engine a bobby pin) between the rubber
cup at the end of the spark plug
wire
and the tubular metal con
nector inside of it. If the spark plug wire is wet or oily, wipe it
dry. Wrap a dry handkerchief or facial tissue, folded several thick·
nesses, around the wire at least
three inches back from the end
and grasp the wire at this point.
Hold the bare wire about 1f4 inch
from the
bare tip of the spark
plug from which you removed the Checking Spark
wire. When the engine is "turned over" a spark should jump across
the 1f4 inch space, indicating ample current supply. If no spark
jumps, the difficulty is probably caused by a defective ignition part
and should be corrected by. your Authorized Chevrolet Dealer.
COOLING SYSTEM
When the car will run but evidences serious overheating on the temperature gauge in the instrument panel, there are several items
which may be checked.
(L) Engine overheating will occur when the OIL LEVEL falls dangerously low. Check the oil level as a matter of course.
(M) Low COOLANT LEVEL will, of course, cause engine over
heating. Determine the cause of the low coolant level and have
it corrected if necessary.
(N) Check the RADIATOR CORE. Clean it if it is plugged with
bugs, leaves or other foreign material.
71
(0) Condition of the FAN BELT is very important, not only for engine cooling but also for proper
generator operation. Check the
condition of the belt. Replace it if it is worn or frayed. Loosen the generator toward the engine to remove and replace the belt. Tighten the belt, whether new or old, by loosening the generator bolts, prying with a bar on the generator until the belt is ten
sioned properly, then retighten
the
generator bolts.
(P) Another cause of engine overheating may be an inoperative COOLING SYSTEM THERMOSTAT. If the thermostat should fail in the closed position, it will not
permit coolant to circulate through
the system.
In such an emergency the thermostat may be removed
but should be replaced with a properly functioning thermostat as soon as possible.
Fan Belt Tension
Thermostat
Installation
