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
+ 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
   15.2. System of ignition of EZL
   15.3. System of ignition of TFZ
   15.4. Check of system of ignition
   15.5. Ignition coil
   15.6. Ignition distributor
   15.7. Distributor rotor
   15.8. Corner of an advancing of ignition
   15.9. Elements of a control system of ignition
+ 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






15.6. Ignition distributor

GENERAL INFORMATION

For removal of a cover of the distributor of ignition on models with system of ignition of TFZ turn screws of fastening of a cover on a turn quarter.

Combination of a rotor of the distributor with a label on the case of the distributor of ignition

SYSTEM OF IGNITION OF EZL

Removal

PERFORMANCE ORDER
1. The distributor of ignition is established in vertical situation sideways the block of cylinders.
2. Remove a weight wire from the accumulator.
3. Establish the piston of the first cylinder in the top dead point as follows. Unscrew screws, lift and move aside a cover of the distributor of ignition, without disconnecting from it high-voltage wires. Define the location of an adjusting label on the case of the distributor of ignition which represents small dredging on the top edge of the case of the distributor of ignition.
4. For a bolt of fastening of a pulley of a cranked shaft turn a cranked shaft of the engine in the direction of working rotation before combination of an electrode of a rotor of the distributor with a label on the distributor case.
5. Continue to rotate a cranked shaft of the engine while the label of the top dead point on a quencher of krutilny fluctuations will not be combined with the index on a cover of a driving chain.
Prevention

Make combination of an adjusting label with the index very precisely.


6. Check that the rotor of the distributor was precisely combined with a label on the distributor case. If a rotor of the distributor will turn on 180 ° from a label on the distributor case, means, the piston of the first cylinder is in the top dead point on an exhaust step. In this case turn a cranked shaft of the engine on one complete revolution and combine an adjusting label on a quencher of krutilny fluctuations with the index on a cover of a driving chain.
7. Now it is possible to remove and establish the ignition distributor without violation of a corner of installation of the moment of ignition if thus not to turn a cranked shaft of the engine.
8. Unscrew a bolt of fastening and remove the case of the distributor of ignition from the block of cylinders.
9. Check a condition of a sealing ring and, if necessary, replace it.

Installation

PERFORMANCE ORDER
1. If after removal of the distributor of ignition the cranked shaft of the engine was turned, execute the following actions.
2. Unscrew a spark plug from the first cylinder. Close a thumb an opening for a spark plug and turn a cranked shaft of the engine until the finger will not feel pressure in the cylinder. Continue to rotate a cranked shaft of the engine while the label of the top dead point on a quencher of krutilny fluctuations will not be combined with the index on the case of a driving chain.
3. Insert the ignition distributor into the block of cylinders and combine a distributor shaft with a drive so that the rotor of the distributor was combined with a label on the case of the distributor of ignition. The case of the distributor of ignition should be established accurately on a fixing flange of the block of cylinders, and the opening in a fixing flange for a bolt of fastening of the distributor of ignition should be established in the groove center in the basis of the case of the distributor. If necessary turn the distributor case.
4. Fix the distributor case a bolt, having tightened it the demanded moment.
5. Establish a cover of the distributor of ignition and fix it screws.

SYSTEM OF IGNITION OF TFZ

Removal

Arrangement of a bolt of fastening of the distributor of ignition on models with system of ignition of TFZ

PERFORMANCE ORDER
1. The distributor of ignition is established in vertical situation sideways the block of cylinders.
2. Remove a weight wire from the accumulator.
3. Establish the piston of the first cylinder in the top dead point as follows. Turn screws of fastening of a cover of the distributor of ignition on a turn quarter, lift and move aside a cover of the distributor of ignition, without disconnecting from it high-voltage wires. Define the location of an adjusting label on the case of the distributor of ignition which represents small dredging on the top edge of the case of the distributor of ignition.
4. For a bolt of fastening of a pulley of a cranked shaft turn a cranked shaft of the engine in the direction of working rotation before combination of an electrode of a rotor of the distributor with a label on the distributor case.
5. Continue to rotate a cranked shaft of the engine while the label of the top dead point on a quencher of krutilny fluctuations will not be combined with the index on a cover of a driving chain.
Prevention

Make combination of an adjusting label with the index very precisely.


6. Check that the rotor of the distributor was precisely combined with a label on the distributor case. If a rotor of the distributor will turn on 180 ° from a label on the distributor case, means, the piston of the first cylinder is in the top dead point on an exhaust step. In this case turn a cranked shaft of the engine on one complete revolution and combine an adjusting label on a quencher of krutilny fluctuations with the index on a cover of a driving chain.
7. Now it is possible to remove and establish the ignition distributor without violation of a corner of installation of the moment of ignition if thus not to turn a cranked shaft of the engine.
8. Remove a hose from the vacuum regulator located sideways of the case of the distributor of ignition.
9. Sideways cases of the distributor of ignition disconnect the electric socket of the sensor of impulses.
10. Using paint, note position of the case of the distributor of rather fixing flange.
11. Unscrew a bolt of fastening and take the case of the distributor of ignition from the block of cylinders (see fig. An arrangement of a bolt of fastening of the distributor of ignition on models with system of ignition of TFZ).
12. Check a condition of a sealing ring and, if necessary, replace it.

Installation

PERFORMANCE ORDER
1. If after removal of the distributor of ignition the cranked shaft of the engine was turned, execute the following actions.
2. Unscrew a spark plug from the first cylinder. Close a thumb an opening for a spark plug and turn a cranked shaft of the engine until the finger will not feel pressure in the cylinder. Continue to rotate a cranked shaft of the engine while the label of the top dead point on a quencher of krutilny fluctuations will not be combined with the index on the case of a driving chain.
3. Insert the ignition distributor into the block of cylinders and combine a distributor shaft with a drive so that the rotor of the distributor was combined with a label on the case of the distributor of ignition. The case of the distributor of ignition should be established accurately on a fixing flange of the block of cylinders, and the opening in a fixing flange for a bolt of fastening of the distributor of ignition should be established in the groove center in the basis of the case of the distributor. If necessary turn the distributor case.
4. Fix the distributor case a bolt, having tightened it the demanded moment.
5. Establish a cover of the distributor of ignition and fix it screws.
6. Connect a hose to a vacuum regulator and the electric socket of the sensor of impulses.
7. Check and, if necessary, adjust a corner of an advancing of ignition.