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Volume Test: Mechanical

  1. Be sure there is gasoline in the tank. Disconnect ignition wire from distributor.
  2. Disconnect fuel line at carburetor inlet fitting. Install length of fuel resistant hose over end of fuel line. Place end of hose into a gasoline container.
  3. Crank engine. Compare amount of fuel pumped to specifications for each manufacturer. Pump output should be about 1 pint in 30 seconds.
  4. If little or no gasoline flows from hose, check fuel lines or gas tank filter for kinks, restrictions or leaks. If lines and filter are clear, pump is defective and must be replaced.
Fig 1: Typical Electric Fuel Pump Installation In Fuel Tank (All But Aries and Reliant
G669
NOTE: Aries and Reliant use a mechanical fuel pump only.