Centinel System – Repair Manual – 006-015   Fuel Filter (Spin-On Type)

Use the correct filter(s) for your engine. It must remove a minimum of 95 percent of free and emulsified water. It must also have a minimum of 98.7 percent 15-micron particle-removal efficiency.

Refer to Procedure 018-024 in Section V.

Apply a thin coating of clean engine oil to the filter gasket surface.

CAUTION  Mechanical overtightening of the filter can distort the threads or damage the filter element seal.

NOTE: Do not prefill the fuel filter. Damage to the fuel system may result.

Install the filter onto the filter head. Turn the filter until the gasket contacts the filter head surface.

Tighten the filter an additional ¾ of a turn after the gasket contacts the filter head surface, or as specified by the filter manufacturer.

To perform the priming procedure, use the following items to fabricate a fuel bypass hose:

• 2- Quick-disconnect fittings, Part Number 3376859
• Clear tubing (capable of 2758 kPa [400 psi])

Install the fuel bypass hose fabricated above between the suction-side Compuchek™ fitting at the top of the IFSM and the fuel pump Compuchek™ fitting located on the head of the fuel pump.

Connect the clear hose and the shutoff valve normally used to check for air-in-fuel to the rail Compuchek™ fitting. Refer to Procedure 006-003 in Section 6. Place the open end of the tube in a suitable container and fully open the shutoff valve in the hose.

Fill the fuel filter by turning the ignition switch to the ON position, but do not start the engine. The fuel lift pump should begin to operate. Monitor the open end of the bleed line from the rail Compuchek™. When fuel is seen coming out of this line, turn the ignition OFF. Remove the bleed line and the air-in-fuel test line.

Use the correct filter(s) for your engine. It must remove a minimum of 95 percent of free and emulsified water. It must also have a minimum of 98.7 percent at 25-micron particle-removal efficiency.

Refer to Procedure 018-024 in Section V.

Apply a thin coating of clean engine oil to the filter gasket surface and the center seal.

CAUTION  Mechanical overtightening of the filter can distort the threads or damage the filter element seal.

NOTE: Do not prefill the fuel filter. Damage to the fuel system may result.

Install the filter onto the filter head. Turn the filter until the gasket contacts the filter head surface.

Tighten the filter an additional 3/4 of a turn after the gasket contacts the filter head surface, or as specified by the filter manufacturer.

If the filter is equipped with a water-in-fuel sensor, rotate the sensor to the desired location and connect the wiring harness.

NOTE: The engine will, perhaps, run rough for several minutes until the air is out of the system.

Fill the fuel filter by turning the ignition keyswitch to the ON position. The priming pump will operate for 2 minutes, which will adequately fill the fuel filter. The engine can then be started.

Some engines utilize a manual, remote mount priming pump. Flip the priming pump mounted toggle switch to the ON position. Operate the pump for 2 minutes and shut it off. The engine can then be started.

Use the correct filter(s) for your engine. It must remove a minimum of 95 percent of free and emulsified water. It must also have a minimum of 98.7 percent at 25-micron particle-removal efficiency.

Refer to Procedure 018-024 in Section V.

Apply a thin coating of clean engine oil to the filter gasket surface and the center seal.

CAUTION  Mechanical overtightening of the filter can distort the threads or damage the filter element seal.

NOTE: If the filter is equipped with a water-in-fuel sensor, rotate the sensor on the filter to the desired location and connect the wiring harness. Fill the filter with clean fuel prior to installation.

Install the filter onto the filter head. Turn the filter until the gasket contacts the filter head surface.

Tighten the filter an additional 3/4 of a turn after the gasket contacts the filter head surface, or as specified by the filter manufacturer.

NOTE: The engine will, perhaps, run rough for several minutes until the air is out of the system.

Remove the external hex plug on the top ofthe integrated fuel system module. Crank the engine until a solid stream of fuel comes out of the port.

Install the hex plug.

Crank the engine for 20 seconds. If the engine does not start within 20 seconds, wait two minutes. It will probably be necessary to remove the filter, fill the filter with clean fuel, and install the filter.

Repeat these steps until the engine starts.