93 4 DLT ENGINE FUEL FILTER (Fig. 181) The filter is located in the engine compartment. It filters the fuel sucked from the fuel tank. This is essential for ensuring injecting operation because nozzle is extremely sensitive to foreign particles in the supply circuit. Removal 1. Unscrewdrain plug and drain fuel from fuel bowls. 2. Remove fuel filter with top cover from mounting bracket. 3. Unscrew fuel filter bowl mounting bolt & remove bowl with element. 4. To remove filter from vehicle, loosen banjo bolt & disconnect suction line from filter. Inspection 1. Check fuel tank filter element for clogging or damage. Replace if necessary. 2. Check FIP side filter element for clogging, damage. Replace if necessary. 3. Replace fuel tank side f i l ter element at recommended intervals. 4. Replace FIP side filter element at recommended interval. Assembly 1. Assemble new filter element if necessary. 2. Assemble fuel filter and fit it on mounting bracket. 3. Connect suction line to fuel filter inlet and tighten banjo bolt to specified torque. 4. Always use new sealing washers. 5. Prime fuel system as mentioned above. Fig. 181
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