CHAPTER 3
3-10
is fi lled with fuel, air is displaced by the incoming fuel, and relieved
through the fuel vent hose. When the fuel tank is near full, slow down
or stop the nozzle fl ow to keep the fuel from splashing out the vent.
Fuel Hoses
Fuel hoses transport gasoline from one component to another. These
hoses are required to be of certain diameters in order to comply with
engineering and environmental standards. Hose clamps are often
used to seal the hose to a fi tting, and these connections should be
checked regularly.
Fuel Pumps/ Filter
From the fuel tank, gasoline is moved from the tank to the engine
by the pressure produced in fuel pumps. Fuel fi lters are not able to
remove large amounts of water. If the fuel becomes contaminated
with water, the water separator fi lter(s) must be replaced.
Fuel Sender & Gauge
A fuel sender on the fuel gauge uses a dipstick/fl oat system to measure
the amount of fuel left in the tank. This measurement generates a
specifi c resistance value in an electronic circuit connected to the fuel
gauge at the helm. As different fuel levels are reached, the resistance
value in the circuit with the fuel gauge changes which is read by the
fuel gauge and is converted to an approximate fuel level.
Fuel Tank
The fuel tank should be inspected for damage before each voyage.
This should be done when you check the fuel lines for tightness
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