Bleed Fuel System

IMPORTANT: Any time the fuel system has been opened up for service (lines disconnected or filters removed), it will be necessary to bleed air from the system.

NOTE: A second person will be needed for the following procedure.

The fuel system can be bleed at two locations:

• Fuel Filter
• Fuel Injection Pump

Fuel Filter

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   Rotary Pump

   
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   Inline Pump

   A - Bleed Vent Screw

   B - Hand Primer

   Open bleed vent screw (A).

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2. Pump hand primer (B) until fuel runs out smoothly without spiting.

3. When no air bubbles are seen close vent screw.

4. Pump the hand primer until resistance is felt.

5. Repeat until no air bubbles flow from vent screw.

Fuel Injection Rotary Pump

1. 
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   A - Fuel Return Line

   B - Bleed Screw

   C - Hand Primer

   Loosen fuel return line (A) at fuel injection pump.

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2. Loosen injection pump bleed screw (B).

3. When no air bubbles are seen tighten fuel return line (A) and bleed screw (B).

4. Pump the hand primer (C) resistance is felt.

5. Repeat until no air bubbles flow from fuel return line.

Fuel Injection Inline Pump

1. 
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   A - Fuel Return Line

   B - Bleed Screw

   C - Hand Primer

   Loosen fuel return line (A) at fuel injection pump.

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2. Loosen injection pump bleed screw (B).

3. When no air bubbles are seen tighten fuel return line (A) and bleed screw (B).

4. Pump the hand primer (C) resistance is felt.

5. Repeat until no air bubbles flow from fuel return line.