Carver 396 Motor Yacht 2003, Owner'S Manual

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ECTION
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drawal tube. Anti-siphon check valves are spring-loaded
and automatically stop the flow of fuel in the case of a
ruptured or disconnected fuel hose.
Never remove an anti-siphon check valve from the fuel
system. The valves are important safety components.
Clean or replace obstructed or sticking valves.
On electronically fuel-injected systems, fuel return lines
have been installed. With electronic fuel-injected en-
gines, the fuel tank selector valve selects both the fuel
feed and fuel return lines simultaneously. The fuel
return lines return the fuel to the tank the fuel was
drawn from, preventing the other tank from overflow-
ing.
NOTE: Fuel return lines are not used with carbureted
engines.
Each diesel propulsion engine in your boat is plumbed
to the fuel tank located on the same side of the boat as
the engine. The diesel propulsion system uses fuel
supply and return lines. The supply lines feed fuel to
the engine. The return lines transfer fuel not burned by
the engine back to the fuel tank. If your boat is
equipped with the optional generator, the generator
draws fuel from the port fuel tank only.
Fuel Transfer Pump
A fuel transfer pump is included with the diesel fuel
system. Because the optional generator draws fuel only
from the port fuel tank, the fuel levels in the tanks may
become unequal. If this occurs, use the fuel transfer
pump to pump fuel from one tank to the other until the
fuel levels are equal.
To transfer fuel between fuel tanks:
1. Place the "house" battery bank master disconnect
switch in the "ON" position.
2. Switch the Main - One circuit breaker on the Safety
Breaker Panel "ON".
Diesel Fuel
Systems