Section 5 • Fuel System

1.Fuel System

Section 3 • Using Your Boat contains important fueling information. Take time to read all the fuel related information in the owner’s manual.

The 242 Islander standard gasoline fuel system consists of a 102 gallon fuel tank, fuel tank vent, an anti-siphon valve, engine fuel supply line and fuel fill (See Figure 5.1.1).

The fuel tank vent serves as a pressure/vacuum release and safety overflow. The fuel vent is located inside the fuel cap on the port side of the hull. Periodically check the vent to assure that it is not clogged.

!CAUTION

Never start an engine until you are certain that fuel fumes are not present in engine compartment or elsewhere in the boat.

Single Engine

Gas Fuel System

(Fig 5.1.1)

Anti-Siphon Valve (Inboard/Outboard Engine Only)

The fuel pick-up at the fuel tank has an anti-siphon valve to prevent fuel from siphoning out in the event of line failure (See Figure 5.1.1 and 5.1.2). In an emergency situation, remove the anti-siphon valve if the engine is not getting fuel. NOTE: Replace with new anti-siphon valve or fuel shut off valve as soon as possible as anti-siphon protection is required by federal law.

ANTI-SIPHON VALVE

 

 

 

(FIG. 5.1.2)

ANTI-SIPHON VALVE OPEN

 

 

 

FUEL FLOW

 

 

 

TO ENGINE

 

 

FROM FUEL

 

 

 

TANK

FUEL PUMP SUCTION PULLS OPEN THE SEALING BALL

 

ANTI-SIPHON VALVE CLOSED

NO FUEL

 

 

FUEL FLOW

 

 

 

 

FROM FUEL

PUMP SUCTION

 

 

 

 

TANK BLOCKED

 

 

 

SPRING PRESSURE PUSHES THE SEALING BALL CLOSED

fUEl fIll

 

 

 

 

fUEl

 

 

Tank

sTaTIC gROUnD

 

 

WIRE

 

 

fUEl VEnT

 

 

#28 ClaMPs

 

 

#10 ClaMPs

 

 

sTaTIC gROUnD

 

 

WIRE

sTaTIC gROUnD

 

 

#10 ClaMPs

 

WIRE

 

 

fUEl PICk-UP TO EngInE

fUEl sEnDIng UnIT

242 Islander®

5.1

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Image 47
Baja Marine 242 manual Fuel System, Anti-Siphon Valve Inboard/Outboard Engine Only