Mercedes W124

since 1985-1995 of release

Repair and car operation



W124 Mercedes
+ Governing bodies and control devices
+ MAINTENANCE
+ 2. Maintenance (diesel engines)
+ ENGINE
+ 4. Repair of 6-cylinder petrol SOHC engines
+ 5. Repair of 6-cylinder petrol DOHC engines
+ 6. Repair of the diesel engine established in the car
- 7. Major maintenance of engines
   7.2. General information
   7.3. Recommendations about engine removal
   7.4. Removal and installation of 4-cylinder petrol engines
   7.5. Removal and installation of 6-cylinder petrol engines
   7.6. Removal and installation of diesel engines
   7.7. Sequence of dismantling of the engine
   + 7.8. Analysis of a head of the block of cylinders
   + 7.9. Assembly of a head of the block of cylinders
   7.10. Removal of pistons with rods
   7.11. Removal of a cranked shaft
   7.12. Block of cylinders of the engine
   7.13. Pistons and rods
   7.14. Cranked shaft
   7.15. Survey of radical and shatunny bearings
   7.16. Engine balance of assembly at major maintenance
   7.17. Installation of piston rings
   7.18. Installation of a cranked shaft
   7.19. Check of a working gap of radical bearings
   7.20. Installation of a cranked shaft
   + 7.21. Installation of pistons with rods
   7.22. Engine start after major maintenance
+ COOLING SYSTEM
+ FUEL SYSTEM
+ 10. System of injection of BOSCH CIS-E fuel (KE-JETRONIC)
+ 11. System of injection of BOSCH HFM fuel
+ 12. Fuel system of diesel engines
+ 13. Fuel system of diesel engines
+ SYSTEMS OF START, IGNITION
+ 15. System of ignition of 4-cylinder petrol engines
+ 16. System of ignition of four-cylinder petrol engines
+ PRESTARTING HEATING
+ TRANSMISSION
+ 19. Mechanical transmission
+ 20. Automatic transmission
+ POWER SHAFTS
+ BRAKE SYSTEM
+ SUSPENSION BRACKET
+ BODY
+ ELECTRIC EQUIPMENT
+ CHECK OF MALFUNCTIONS





7.7. Sequence of dismantling of the engine

GENERAL INFORMATION

Removal of a casing of the oil filter

Casing removal сапуна

Engine installation on the special stand considerably facilitates assembly processes - dismantlings. Before engine installation with the stand shoot a flywheel and a back sealing ring of a cranked shaft. In the absence of the stand engine dismantling on a floor is possible. At work in these conditions observe extra care.

First of all it is necessary to remove the following knots from the engine:

– oil filter;
– generator;
– pump of the amplifier of a steering;
– arms of support of the power unit;
– thermostat and thermostat casing;
– a pipe for щупа measurements of level of engine oil;
– plait of wires and all electric switches; and sensors;
– inlet and final collectors;
– coil and spark plugs.

If it is necessary to make only repair of the block of cylinders, a cranked shaft, pistons and rods, it is necessary to remove a head of the block of cylinders, the oil pallet, the oil pump and a driving chain.

In need of carrying out complete major maintenance it is necessary to remove from the engine:

– inlet and final collectors;
– driving chain and tension mechanism;
– head of the block of cylinders;
– drive flywheel / plate;
– oil pallet;
– oil pump;
– pistons with rods;
– cranked shaft.