engines. This system is composed of a housing, spark
plug, flow control nozzle, and two solenoid control
valves. This system is operated as follows:
1. The spark plug is energized by the flame heater
2. The nozzle sprays fuel under pressure into the
intake manifold assembly.
3. The fuel vapor is ignited by the spark plug and
bums in the intake manifold heating the air before it
enters the combustion chamber.
The flame fuel pump assembly is a rotary type,
driven by an enclosed electric motor. The fuel pump
receives fuel from the vehicle fuel tank through the
supply pump of the vehicle and delivers it to the spray
nozzle. The pump is energized by the on/off switch
located on the instrument panel.
The intake manifold flame heater system has a filter
to remove impurities from the fuel before it reaches the
The two fuel solenoid valves are energized (open)
whenever the flame heater system is activated. The
valves ensure that fuel is delivered only when the system
is operating. These valves stop the flow of fuel the
instant that the engine or the heater is shut down.
When troubleshooting or repairing these units,
consult the manufacturers repair manual.
Cold starting aids, such as ether, should be used
only in extreme emergencies. Too much ether may
detonate in the cylinders too far before top dead center
on the compression stroke. This could cause serious
damage, such as broken rings, ring lands, pistons, or
even cracked cylinder heads. If you must use ether, the
engine has to be turning over before you spray it into the
ETHER IS TO BE USED ONLY IN