High pressure pump 1. Fuel metering valve -N290- with fuel. the high pressure pump cannot be removed; 2. Fuel pressure sender for low pressure circuit -G410-, 15 Nm; 3. Sealing collar. Replace; 4. Bolt, 20 Nm; 5. High pressure pump with fuel metering valve -N290- (cannot be removed). Before installing the fuel lines, first tighten the fuel line fittings. Do not disassemble; 6. Threaded fitting, 27 Nm; 7. Hose clamp. Replace; select a clamp of the appropriate series; 8. Fuel pre-supply hose; 9. High pressure fuel line. To loosen and tighten the union nut, hold the fitting on the high-pressure pump. Before installation, tighten the fitting on the high pressure pump; 10. Gasket. Replace; 11/13. Bolt, 9 N'm; 12. Hall sensor -G40-; 14. Seal ring. Replace. Before installation, moisten with clean oil; 15. Body; 16. Roller pusher. Before installation, moisten with clean oil; 17. Seal ring. Replace. Moisten with clean oil before installation
High pressure line protective screen tightening torque
Tighten the bolts -arrows- of the protective shield -1-. Tightening torque: 9 Nm.
Installation of high pressure line
Tighten the high pressure line union nut by hand. Make sure that the high pressure line is installed without tension. To tighten the high pressure line on the high pressure pump, use a torque wrench with a ratchet and a socket wrench size 14 -3150-. High pressure line union nut: 25 Nm.
Removing the high pressure pump
Installation and removal of fuel. The high pressure pump must only be performed on a cold engine. When installing fuel high pressure pump, care should be taken to ensure that dirt does not get into the fuel. system. Collect leaking fuel with a rag. Always replace the seal. rings. Always secure high-pressure fuel lines so that there are no internal mechanical stresses. Remove the lower part of the air housing. filter. Unscrew the bolts -arrows- and remove the protective shield -1-.
Disconnect plug connectors -1- and -6-. Remove the fuel supply hose -2- and unscrew the screw connection -5-. Remove bolts -3- and -4- from the clamps. Unscrew bolts -arrows- and carefully lift high-pressure line.
Do not change the bending shape of the fuel lines. Do not bend the clamps from the fuel under any circumstances. highways. If the clamp was bent or fuel. If the line needs to be replaced, then the clamps should also be replaced. Carefully remove the fuel. High pressure pump. Remove the roller tappet -1 - from the housing.
Installation
Installation in reverse order: there must be no damage to the high pressure pipes. Do not change the bending shape of the fuel lines. Do not bend the clamps from the fuel under any circumstances. highways. If the clamp was bent or fuel. If the line needs to be replaced, then the clamps should also be replaced. Replace seal. high pressure pump ring. Check roller tappet -1 for damage, replace if necessary. Lubricate the roller tappet with oil and insert the projection -arrow A- into the guide -arrow B-. To install the injection pump, the roller tappet must be in the lowest position. Turn the crankshaft using the damper bolt in the direction of engine rotation, installing the roller tappet in the cylinder head so that it reaches its lowest point. Raise the fuel slightly. high pressure line for installing a high pressure pump. Insert the high pressure pump into the housing. Tighten screws -arrows- by hand until they touch the flange. Then tighten the screws crosswise (approximately 1 turn of each screw until the fuel injection pump fits) required tightening torque. When tightened from 1 side (skew) the pump may be damaged. Tightening torque: hand tighten the union nut -5- of the fuel supply line. Align without distortion or tension. Reconnect the fuel supply hose -2-. Tighten screws -3- and -4- on the clamps. Connect email connectors -1- and -6-. Tighten the high pressure line to torque. Install the protective cover -1-. Install the lower part of the air housing. filter. Check fuel system for tightness.
Visitor comments