Removing
Gasoline models with engines of the M119.97 / 98 series
Details of the installation of the water pump on models with engines of the M119.97 / 98 series
1 - Eye; 2 - Cover; 3 - Pump of the cooling system; 2a, 3a - Gaskets; 4, 5, 6 - Branch pipes
1. Disconnect the pipes (4), (5) And (6).
2. Unscrew the cover (2) with eyelet (1). Replace gasket (2a).
3. Turn away bolts of fastening of the pump (3).
4. Wipe the sealing surfaces. Replace gasket (3a).
5. Remove the pump (3).
Gasoline models with engines of the M120.97 / 98 series
Details of the installation of the water pump on gasoline models with engines of the M120.980 / 982 series
4, 15 - Branch pipes of the cooling system; 21 - Fan clutch; 22, 24, 27 - Bolts; 25 - Pulley of the pump of the cooling system; 26 - Pump of the cooling system; 28 - Gasket; 29 - Alternator drive belt
The design of the water pump installed on engines 120
1 - Casing; 2 - Mounting bolt; 3 - Bolt with washer; 4 - Impeller; 5 - Viscous coupling; 6 - O-ring; 7 - Clutch pulley; 8 - Flange; 9 - Bearing assembly; 10 - Drainage tube; 11 - Pump shaft; 12 - sealing ring of the stuffing box; 13 - Pump impeller; 14 - Oil seal; 15 - Bearing cage; 16 - Housing; 17 - Pump drive pulley; 18 - fluid reflector disk; A - From the thermostat; B - From the radiator; C - To the engine crankcase; a - 7.85 mm
1. Loosen the fan clutch pulley bolts (21) and cooling pump pulley (23).
2. Remove the alternator drive belt. 3. Loosen the fan clutch pulley (21) and cooling pump pulley (23).
4. Remove the guide roller (25) from the front right cover.
5. Disconnect a branch pipe of system of cooling from the pump of system of cooling from below.
6. Turn away bolts of fastening of the pump (26) and take it off.
1 - M8x70 bolts
2 - Bolts М8х85
3 — Bolts М8х95
4 - M8x85 bolts with a clamp for the wiring of the TDC sensor L1 / 2
Diesel models with engines of the OM603.971 series
Details of the installation of water on diesel models with engines of the OM603.971 series
1. Empty the cooling system (see chapter Current service).
2. Remove the radiator (see Section Removal and installation of a radiator of the cooling system - installation details).
3. Remove the fan clutch.
4. Disconnect the negative cable from the battery.
5. Loosen the bolts (2) pump sprocket mountings.
6. Remove the alternator drive belt.
7. Loosen the pump pulley (5).
8. Disconnect the fittings (3) And (4) from the pump.
9. Remove generator (15).
10. Remove generator support (16).
11. Remove the pump housing (11) along with the pump.
12. Replace gasket (14). Wipe the sealing surfaces.
13. Unscrew the pump (6).
14. Replace gasket (10).
Diesel models with engines of the OM606.961 series
Details of the installation of water on diesel models with engines of the OM606.961 series
03 - Retainer; 5 - Pulley of the pump of the cooling system; 6 - Pump of the cooling system; 9 - Guide bushings; 10 - Gasket; 11 - Housing of the pump of the cooling system; 17 - TDC sensor; 110, 110a - Compressed air pipes
1. Drain the coolant.
2. Remove the fan clutch.
3. Loosen the pulley bolt (5) cooling system pump.
4. Remove the alternator drive belt.
5. Remove pulley (5) cooling system pump.
6. Set the piston of the first cylinder to the TDC position.
7. Remove the TDC sensor mounting bracket (17).
8. Check the installation of the TDC sensor and, if necessary, adjust it.
9. Turn away bolts of fastening of the pump of system of cooling (6) to the pump body (11).
Installation
Petrol models with 119.97/98 series engines
Installation is made in an order, the return to removal.
The procedure for tightening the bolts of the cooling system pump on gasoline models with engines of the M119.97 / 98 series
Gasoline models with engines of the M120.97 / 98 series
1. Wipe the sealing surfaces.
2. Replace pump gasket.
3. Further installation is made in an order, the return to removal. Check the cooling system for leaks.
Diesel models with engines of the OM603.971 series
Installation is carried out in the reverse order of removal.
Diesel models with engines of the OM606.961 series
Installation is carried out in the reverse order of removal. Replace gasket (10) and wipe the sealing surfaces.
Details of the installation of water on diesel models with engines of the OM606.961 series
03 - Retainer; 5 - Pulley of the pump of the cooling system; 6 - Pump of the cooling system; 9 - Guide bushings; 10 - Gasket; 11 - Housing of the pump of the cooling system; 17 - TDC sensor; 110, 110a - Compressed air pipes