Pic. 166. Location of the fuel filter
Pic. 167. Removal and installation of the fuel filter: 1 - filter cartridge; 2 - filter housing; 3 — fastening of fuel hoses; 4 - bolts; 5 - mount; 6, 7 - fuel hoses; 8 — a hose of a contour of giving of fuel
Pic. 168. Fuel filter and connecting pipelines on a 2.9-liter engine: 1 - sealing ring; 2 - hollow bolt; 3 - fitting for fastening fuel hoses to the filter; 4 - bolt; 5 - connecting fitting; 6 - connecting hose nozzles; 7 - sealing ring; 8 - fitting for connecting the return fuel line; 9 - rubber hose of the return fuel line; 10 - fuel return circuit; 11 - clamp for fastening the fuel line to the thermostat housing; 12 - fuel supply hose; 13 - clamp for fastening the fuel line to the thermostat housing; 14 - clamp for fastening the fuel line to the thermostat housing; 15 - hose clamp to the heat exchanger; 16 - collar; 17 - adapter; 18 — a collar of fastening of an adapter to a head of the block; 19 - fuel line; 20 - hose; 21 - fuel hose from the filter to the injection pump; 22 - sealing ring; 23 - filter housing; 24 - fuel filter with gaskets; 25 - sealing ring; 26 - threaded connection to high pressure fuel pump; 27, 28 - fuel lines of the return circuit; 29 - sealing ring; 30 - heat exchanger fastening bolt; 31 - sealing ring; 32 - fuel line; 33 - heat exchanger for fuel heating; 34 - fuel line
High pressure fuel pump and injectors are very sensitive to diesel fuel contamination. The fuel filter is used to clean it. Every 60,000 km, its filter element must be replaced. On fig. 166 shows the position of the fuel filter in the engine compartment. When replacing it, refer to Fig. 167. In fig. 168 shows the details of the fuel filter on the 2.9L engine and its installation. The fuel filter element must be replaced as follows:
- remove the air filter housing (with turbocharged diesel engine);
- unscrew cartridge 1 from below (see fig. 167) filter. In this case, a container should be placed under the flowing fuel. If only the filter element is being replaced, screw in a new cartridge;
- to remove the filter housing, unscrew bolts 4 and remove fasteners 3 and 5;
- Disconnect fuel hoses 6 and 7 from filter housing 2. Also unscrew the fuel supply hose 8;
- unscrew the bolts securing the filter housing to the cylinder head and remove it.
Installation is carried out in the reverse order. Screw the housing to the block head with a torque of 23 Nm, fastening the fuel hoses to the filter with a torque of 9 Nm.