Engine Equipment
COLD WEATHER STARTING AIDS
In a diesel engine, the fuel injected into the
5. Engage the starter and at the same time pull the
combustion chamber is ignited by the heat of the air
pump plunger all the way out. Push the plunger in
compressed into the cylinder. However, when starting
slowly, forcing the starting fluid through the atomizing
an engine in extremely cold weather, a large part of
nozzle into the air intake. Continue to push the pump
the energy of combustion is absorbed by the pistons
in until the engine starts. If the plunger is not all the
and cylinder walls and in overcoming the high friction
way in when the engine starts, push it in slowly until it
created by the cold lubricating oil.
locks in the IN position.
When the ambient temperature is low, it may be
6. Unscrew the cap and remove the capsule. Do not
necessary to use an air heater or a starting fluid to
leave the empty capsule in the container.
assist ignition of the fuel.
7. Replace the cap on the capsule container and make
NOTE: Starting aids are NOT intended to
sure the piercing shaft is all the way down.
correct for a low battery, heavy oil, or other
conditions which cause hard starting. They are
to be used only when other conditions are
normal, but the air temperature is too cold for
Service
the heat of compression to ignite the fuel-air
mixture.
The cold weather fluid starting aid will require very
little service. Replace the piston seal packing if the
FLUID STARTING AID
pump leaks. If there is an excessive resistance to
pumping, the nozzle may be plugged. Remove the
The fluid starting aid (Fig. 11) is designed to inject a
nozzle and clean it.
highly volatile fluid into the air intake system at low
ambient temperatures to assist in igniting the fuel oil
injected. This fluid is contained in suitable capsules to
facilitate handling.
The starting aid consists of a cylindrical capsule
container with a screw cap, inside of which a sliding
piercing shaft operates. A tube leads from the capsule
container to the hand operated pump and another
tube leads to the atomizing nozzle threaded into a
tapped hole in the air inlet housing.
The capsule container should be mounted in a vertical
position and away from any heat.
Start the engine, using the fluid starting aid, as
follows:
1. Remove the threaded cap and insert a fluid capsule
in an upright position within the container.
CAUTION: The starting fluid is toxic and
inflammable. Use caution when handling.
2. Pull the piercing shaft all the way out and install
and tighten the cap on the container.
3. Push the piercing shaft all the way down. This will
rupture the capsule and fill the container with the
starting fluid.
4. Move the engine throttle to the maximum speed
Fig. 11 - Typical Fluid Starting Aid
position.
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