Models 463.323 (M612)
Details of installation of the preliminary fuel pump (M612)
1 - Vacuum line; 2 - Vacuum pump; 3 - Fuel supply line; 4 - Fuel return line; 13 - Preliminary fuel pump
1. Remove the cylinder head cover trim panels.
2. Remove the vacuum pump (2).
3. Disconnect from prepump (13) feed lines (3) and return (4) fuel.
4. Turn out fixing bolts and remove pump assembly (13), - Prepare to collect spilled fuel.
Attention! Do not open the pump assembly!
5. Installation is carried out in the reverse order - before installation, the preliminary pump must be filled with fuel. Make sure that the mating surfaces of the installed components are clean, do not forget to replace the gaskets.
6. Finally, start the engine and check the relevant components of the power system for signs of leak development.
Models 463.333 (M628)
Details of installation of the preliminary fuel pump (M628)
1 - Preliminary fuel pump; 2 - Bolts; 3 - injection pump; 4 - Throttle actuator actuator with upper air ducts
1. Remove air cleaner and throttle actuator with top air ducts (see Section Servicing Air Inlet Components).
2. Turn out fixing bolts (2) and remove the pre-fuel pump assembly (1), - Prepare to collect spilled fuel.
3. Installation is carried out in the reverse order - before installation, the preliminary pump must be filled with fuel. Make sure that the mating surfaces of the installed components are clean, do not forget to replace the gaskets.
4. Finally, start the engine and check the relevant components of the power system for signs of leak development.