Fuel System Bleeding

causym CAUTION: Escaping diesel fuel under pressure can penetrate the skin causing serious injury.

Avoid the hazard by relieving pressure before disconnecting lines. Tighten all connections before applying pressure.

Search for leaks with a piece of cardboard. Protect hands and body from high pressure fluids.

If an accident occurs, see a doctor immediately. Any fluid injected into the skin must be surgically removed within a few hours or gangrene may result. Doctors unfamiliar with this type of injury should reference a knowledgeable medical source.

Bleed Low Pressure Fuel Lines

1. Loosen bleed screw (A) on the fuel/water separator and operate the primer pump (B) until bubble-free fuel exits at the bleed screw.

2. Tighten the bleed screw.


A-Bleed Screw on Fuel/Water Separator
B-Primer Pump

X9811
T150404
T150405

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Bleed Injection Pump

1. Loosen the fuel drain manifold line fitting and crank the engine until bubble-free fuel exits at the fitting.

2. Tighten the fitting


A-Fuel Drain Manifold Line Fitting

T150406

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Bleed High Pressure Fuel Lines

1. Loosen, in turn, each injector line fitting and crank the engine until bubble-free fuel exits at the fitting.

2. Ensure that all line fittings are tightened.


A-Injection Line Fitting

T150407

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