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Hercules G-1600 — Fuel Pump Test

Testing & diagnosis · fuel system

For the Hercules G-1600, from the Hercules service manual.

Procedure

  1. Hook the fuel supply line from the tank to the pump inlet connection.
  2. Holding the pump in hand, work the rocker arm using long, even strokes until the bowl fills with fuel.
  3. Continue strokes to force fuel through the pump and out the outlet side.
  4. With strokes approximately 3/4 to 1 inch at the tip of the rocker arm, the pump should deliver fuel.

Specs & values

  • Strokes approximately 3/4 to 1 inch at rocker arm tip

Source: Hercules service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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