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Centinel System – Repair Manual – 006-003   Air in Fuel

Table of Contents

Initial Check

Initial Check

 TOC

To perform a pressure-side air-in-fuel check, use the following items:

  • Quick-disconnect fitting, Part Number 3376859
  • Pressure valve (capable of 2758 kPa [400 psi])
  • Clean clear tubing
  • Clean container.

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Connect the equipment to the quick-connect fitting at the fuel module as shown.

Put a coil in the clear hose.

Put the end of the clear hose in the clean container.

Operate the engine at idle with no load.

Slightly open the valve until a steady stream of fuel is visible.

If there is an air leak, bubbles will be visible in the coil of the clear tubing.

If an air leak is found, inspect the center seal ring in the fuel filter for deformation.

If the seal ring is not damaged, continue to test and look for air leaks until there are no bubbles visible.

Remove the air-in-fuel check equipment.

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Last Modified:  13-Mar-2002
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