Fuel System - Volvo Penta 3.0GS/SX Owner's Manual

Fuel system

A fuel pump sucks fuel from the fuel tank through the fuel filter to the fuel injection system or to the carburetor.
The fuel pump and fuel injection system are fused, see Electrical System.
IMPORTANT! All work on the engine fuel injection system must be carried out at an authorized workshop.
WARNING! Be extremely careful when replacing fuel filters or other service work on the fuel system. Ga-
soline is highly inflammable and can be extremely explosive in certain circumstances. Before starting
work: switch off the ignition and allow the engine to cool completely. There must be no smoking, naked fla-
mes or sparks in the immediate vicinity. Place a rag under fuel connectors and filters when removing.
Remove the rag and any fuel spillage immediately and dispose of it in a safe place. When work has finis-
hed: check carefully that there are no leaks. Check both before and after starting the engine. Run the engi-
ne compartment fan for at least 4 minutes before starting the engine.
To prevent fire and explosion, Volvo Penta fuel system components meet requirements for fuel and fuel
vapour containment. Do not substitute automotive or other non-approved parts.
50
A
Fuel pumps
WARNING! Frequently check fuel pumps for
signs of fuel leakage. Should this occur, have it
serviced immediately by your Volvo Penta dea-
ler.
All carburettor models except the 3.0GL have a sing-
le electric fuel pump installed at the front of the engi-
ne on the starboard side. The pump wiring is protec-
ted by a 6 A circuit breaker (A). The model 3.0GL
has a mechanical fuel pump.
EFI engines have two electric fuel pumps; a low
pressure pump to bring fuel from the boat tank to the
engine, and a high pressure pump to supply the fuel
injectors both pumps are protected by a single 20
amp circuit breaker (A).
All the fuel pumps operate only when the engine is
running.
If a pump does not operate and/or the engine will not
start, check and reset the circuit breaker. See your
Volvo Penta dealer if further service is required.
IMPORTANT! Do not run engine out of fuel or
run the electric fuel pumps dry more than 20 se-
conds. Running the electric fuel pumps dry will
damage the fuel pumps.