FUEL SYSTEM


  1. CONSTRUCTION


    1. The fuel tank assembly uses a saddle shape to allow the propeller shaft to pass under the center portion of the tank. Also, a jet pump is used to transfer the fuel from the side of the tank which does not have a fuel pump to the side which does have a fuel pump.

    2. The propeller shaft is located below the raised center of the bottom of the fuel tank assembly. The fuel tank assembly is shaped as indicated below. A fuel tank assembly with such a shape tends to cause fuel to be present in both chamber A and chamber B when the fuel level is low. This stops the fuel in chamber B from being pumped out. To prevent this from occurring, a jet pump has been provided to transfer the fuel from chamber B to chamber A. This is accomplished by utilizing the flow of the fuel through the jet pump, so that the pressure difference created by the fuel as it passes through the venturi is used to suck the fuel out of chamber B and send it to chamber A.

      B003SICC02
      *1 Engine *2 Fuel Tank Assembly
      *3 Fuel Pump (for Low Pressure) *4 Fuel Filter
      *5 Fuel Main Valve Assembly (for Low Pressure) *6 Fuel Main Valve Assembly (for High Pressure)
      *7 Jet Pump *8 Venturi
      *a Chamber B *b Chamber A
      *c from Fuel Pump (for Low Pressure) *d from Chamber B
      *e to Chamber A - -