MBE 4000 – Section 2.10 Fuel Filter Housing

Section 2.10
Fuel Filter Housing

Perform the following procedures for removal and installation of the fuel filter housing. ‪

Section 2.10.1
Fuel Filter Housing Removal

Remove the fuel filter housing as follows:‪

FIRE ‪
To avoid injury from fire, keep all potential ignition sources away from diesel fuel, including open flames, sparks, and electrical resistance heating elements. Do not smoke when refueling.‪

1. Disconnect the batteries.
2. Open the fuel tank fill cap to release pressure in the fuel system. Replace and tighten the cap.
3. Using a 36-mm socket, unscrew the cap on the fuel filter. Lift both the cap and the filter element a short distance above the filter housing. See Figure "Non-EGR Engine Fuel Filter Housing" for non-EGR engines or Figure "EGR Engine Fuel Filter Housing" for EGR engines. Allow the fuel to drain off the filter into the housing before removing.
   

   1. Fuel Filter Housing Mounting Bracket‪	9. Seal Ring‪
   2. Fuel Filter Housing‪	10. Banjo Fitting‪
   3. Filter Element‪	11. Fuel Delivery Line‪
   4. O-ring‪	12. Banjo Bolt‪
   5. Fuel Filter Cap‪	13. Fuel Return Line‪
   6. Banjo Bolt‪	14. Fuel Drain Line‪
   7. Priming Nipple Valve‪	15. Bolts‪
   8. Dust Cover‪	16. Bolts‪

   Figure 1. Non-EGR Engine Fuel Filter Housing

4. Remove the priming valve assembly or banjo bolt and seal rings from the delivery line on the filter housing. Mark both sides of the connection with a paint pen. Discard the seal rings. See Figure "Non-EGR Engine Fuel Filter Housing" for non-EGR engines or Figure "EGR Engine Fuel Filter Housing" for EGR engines.
   

   1. Seal Ring‪	9. Fuel Filter Housing‪
   2. Banjo Bolt‪	10. Filter Element‪
   3. Fuel Return Line‪	11. O-ring‪
   4. Banjo Fitting‪	12. Fuel Filter Cap‪
   5. Fuel Delivery Line‪	13. Bracket Mounting Bolts‪
   6. Banjo Bolt‪	14. Fuel Filter Housing Mounting Bracket‪
   7. Priming Nipple Valve‪	15. Fuel Filter Housing-to-Bracket Mounting Bolts‪
   8. Dust Cover‪	16. Fuel Drain Line‪

   Figure 2. EGR Engine Fuel Filter Housing

   Note: MBE 4000 engines built in March 2005 will be equipped with a fuel priming valve which is located in secondary filter. Engines built before March 2005 require the installation of a fuel priming valve before using the Diesel Fuel System Primer tool (J-47912).

5. Disconnect the fuel return line from the filter housing. Mark both sides of the connection with a paint pen. Discard the seal rings.

   Note: In a suitable container, catch any fuel that runs out of the filter housing or fuel return line.

6. Remove the drain line from the filter housing. Mark both sides of each connection with a paint pen. Discard the seal rings.

   Note: In a suitable container, catch any fuel that runs out of the filter housing or fuel lines.

7. Remove the two bolts attaching the filter housing to the mounting bracket.
8. Remove the filter housing from the engine.
9. Clean the fuel filter cap. Discard the filter element.

Section 2.10.2
Fuel Filter Housing Installation

Install the fuel filter housing as follows: ‪

1. For non-EGR engines install the fuel filter housing on the mounting bracket. Tighten the mounting bolts to 25 N·m (18 lb·ft). For EGR engines install the fuel filter housing on the mounting bracket. Tighten the mounting bolts to 60 N·m (44 lb·ft). See Figure "Non-EGR Engine Fuel Filter Housing" for non-EGR engines or Figure "EGR Engine Fuel Filter Housing" for EGR engines.
2. Install the drain line, as removed. Install new seal rings on the banjo fitting. Tighten the banjo bolt to 40–50 N·m (30–37 lb·ft).
3. Install the delivery line, as removed. Install a new seal rings on the priming valve or banjo bolt. Tighten the banjo bolt to 40–50 N·m (30–37 lb·ft). If removed, install priming nipple valve and torque to 15–16 N·m (11–12 lb·ft).
4. Install the return line, as removed. Install new seal rings on the banjo fitting. Tighten the banjo bolt to 40–50 N·m (30–37 lb·ft).
5. Install a new filter element. Refer to "2.9.2 Fuel Filter Installation" .