Dodge B-I-B 1948 Driver Manual page 45

9. Accumulation of moisture, dirt or oil, on the distributor cap,
wires or spark plugs.
10. Cracked distributor cap or rotor.
The difficulty may be located by the following procedure. When
the engine is being cranked with the ignition switch on and all other
electrical equipment off, a slight intermittent discharge should show
on tbe ammeter. If such a discharge does not show, look for diffi-
culties covered by items 1, 2, 3, 4 and 5. If a continuous discharge
shows and the distributor points are breaking, the condenser is
shorted and should be replaced. If the intermittent discharge
shows, items 7 and 8 should be checked by pulling the large wire
running from the coil to the distributor out of the distributor cap,
then holding the end of the wire about
1,4
in. from the cylinder
block while the engine is being cranked with the ignition switched
on. If the spark does not jump that gap, the coil is faulty.
If spark is being delivered to the distributor cap, items 9 and 10
should be checked. The spark timing can be checked by the pro-
cedure outlined under the electrical system for setting ignition timing.
If the distributor shaft or gear is broken, the distributor rotor will
not turn when the engine is cranked.
See "The Electrical System" for timing instructions.
OCCASIONAL OR REPEA TED ENGINE MISS
If a miss occurs in one or more cylinders while accelerating or at high
engine speeds, the difficulty is more than likely due to faulty ignition
in which case the procedure given under "If the Engine Stops or
Fails to Start" should be followed and the spark plugs should be
carefully
ch~cked
in accordance with instructions given in the elec-
trical section of this manual.
If the engine momentarily ceases to fire on all cylinders when
accelerating or at high speeds, the difficulty may be caused by a
loose or broken electrical connection or by a restricted flow of fuel
through the carburetor. (See "Fuel Pump", page 44, for information
on cleaning the fuel filter.) A miss which occurs only at idling or slow
engine speed when the throttle is nearly closed would indicate im-
proper mixture' of fuel and air, improperly adjusted spark plug gaps
or insufficient compression. (See page 43 for carburetor adjust-
ments.) If adjusting the idling fuel and air mixture does not eliminate
the difficulty, the cylinder in which the miss occurs can be deter-
mined by using a screw driver with an insulated handle to short
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