Engine and peripherals

Pump flow rate

~1min read

Petrol engines

Il est conseillé de contrôler le débit de pompe à carburant par le tuyau de retour

It is advisable to check the fuel pump flow rate through the fuel return hose connected to the pump-gauge assembly.

De'bit de pompe

IMPORTANT

During this procedure, it is essential to:

  • not smoke or bring any hot or glowing object near the work area,
  • protect yourself from fuel spray caused by the residual pressure in the lines when disconnecting them.

FUEL PUMP FLOW RATE CHECK

Disconnect the fuel return line (1) (Mot. 1265).

Connect a length of line to the hose and place its end in a 0-2,000 ml graduated cylinder.

Bridge terminals (3) and (5) of the DF7 engine (K) and E7J engine (L) fuel pump relay (located in the engine fuse box). Within one minute, at a voltage of 12 volts, the pump flow rate must be at least 1.3 litres.

De'bit de pompe

If the flow rate is low, check the pump supply voltage (a flow loss of about 10% occurs for each 1-volt drop in voltage).

Test yourself

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