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 ignition unit.

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 nozzle.

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 manufacturer's repair manual.

ETHER

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 air intake.

CAUTION

ETHER IS TO BE USED ONLY IN EXTREME EMERGENCIES.