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The engine is now ready for starting.
Move the speed control lever to full open
position.
COLD STARnNG EQUIPMENT
Method of Operation.
The small hand pump (see Fig. C.I) is con-
structed with inlet and outlet ports. On the upward
stroke of the pump fuel is drawn through a copper
pipe trom the supply tank into the pump body.
On the downward stroke tuel is pressure ted
through the outlet port and a copper pipe to an
atomiser fitted in the venturi. A swirl in the
atomiser causes the fuel to be sprayed into the
venturi.
PREPARAnON FOR STARnNG
Check the radiator water level.
Check the engine sump oil level.
See that there is tuel oil in the tank.
Where a pneumatic govemor is fitted. make
quite sure that the connections on the pipe
trom the butterfly valve to the govemor on the
tuel pump are light.
Check that the starter battery is tully charged
and that all electrical connections are properly
made and all circuits in order.
Priming the Foei System.
In the case of a new engine or an engine which
bas been la:id up it is important that the fuel
system is "bIed" as follows :-
Fig. C.l.
Pressure Fed Systems.
Slacken small plug on tbe top of tbe final fuel
filter and operate tbe band primer on tbe fuellifl
pump ontil fuel tree trom air bubbles issues trom
the plug hole. Tighten the plug.
Slacken the bleed screw on the top of the tue!
pump.
Again operate the hand primer on the fuel lift
pump until fuel issues trom the bleed screw and
all signs of air have disappeared.
Tighten the bleed screw securely and give the
primer a tew more strokes in order to deliver the
fuel through the relief valve on the tue! filter.
clearing this part of the system of air.
The spray is directed on to a heater plug (see
Fig. C2) which is also fitted into the veoturi.
The resistaoce wire 00 the heater plug is heated
by an electric current when the heater button is
pressed on the "Heater-Starter" switch.
As the pistons tra vel down 00 the suction stroke
the fuel spray, which bas been fired by the hot
resistaoce wire on the plug, is drawn into the
cylinder bare to assist in easy starting.
The wiring diagram (see Fig. C3) shows all
necessary details of the "Heater.Starter" switch
and Heater plug coonections.
Use of Equipment.
The hand pump is used in conjunction with the
induction heater and "Heater-Starter" switch for
starting in cold weather.
Excessive use of the hand pump is to he depre-
cated as it is liable to he harmful to the engine
and could damage the piston rings.
Gravity Fed Systems.
Slacken smal I plug on the top of tbe final fuel
filter and turn on fuel tank supply until fuel tree
trom air issues trom tbe plug hole. Tighten the
plug.
Slacken the bleed screw on tbe top of the fuel
pump and allow fuel to run until no trace of air
remains.
Tighten tbe bleed screw securely whilst fuel is
still issuing.
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