2. Cover the clutch bellhousing with a piece of plastic sheeting, to protect the clutch from fuel spillage.
3. Position a suitable container under the end of the fuel filter drain hose. Open the drain screw on the base of the filter, and allow the fuel to drain completely.
4. When the filter has drained, close the bleed screw and unscrew the filter. In the absence of the special fuel filter socket (Purflux no. F76, a shaped socket that fits the base of the filter), the filter can be unscrewed using a suitable strap or chain wrench (see illustration).
16.4. If necessary, a chain wrench can be used to unscrew the fuel filter
5. Remove the filter, and dispose of it safely. Ensure that the sealing ring comes away with the filter, and does not stick to the filter/thermostat housing mating surface.
6. Apply a smear of clean diesel to the filter sealing ring, and wipe clean the housing mating surface. Screw the filter on until its sealing ring lightly contacts the housing mating surface, then tighten it through a further three-quarters of a turn.
7. Prime the fuel system as described in Chapter 4D.
8. Open the drain screw until clean fuel flows from the hose, then close the drain screw and withdraw the container from under the hose.
9. Refit the battery, and start the engine. If difficulty is encountered, bleed the fuel system as described in Chapter 4D.
