Audi 100/A6

1990-1997 of release

Repair and car operation


Audi 100/A6
+ 1. The maintenance instruction
+ 2. Maintenance service
+ 3. Engines
- 3.2. Diesel engines
   + 3.2.1.2. Technical characteristics
   - 3.2.2. 5-cylinder engines
      3.2.2.2. Technical characteristics
      3.2.2.3. Sinhronizatsionnye labels timing
      3.2.2.4. Compression check
      3.2.2.5. A gazoraspredelitelnyj belt
      3.2.2.6. A privodnoj belt of the fuel pump
      3.2.2.7. Натяжитель газораспределительного a belt and an asterisk
      3.2.2.8. Additional приводной a belt
      3.2.2.9. A camshaft cover
      3.2.2.10. Camshaft epiploons
      3.2.2.11. Epiploons of a cranked shaft
      3.2.2.12. A head of cylinders
      3.2.2.13. Hydraulic pushers
      3.2.2.14. A flywheel
      3.2.2.15. Engine fastenings
      3.2.2.16. The oil pallet
      3.2.2.17. The oil pump and маслозаборный a branch pipe
+ 3.3. Removal and a partition of engines
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. An exhaust system
+ 8. Systems of start, ignition
+ 9. Transmission
+ 10. Brake system
+ 11. Suspension brackets, a steering
+ 12. A body
+ 13. An electric equipment
+ 14. A good advice


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3.2.2.4. Compression check
THE GENERAL DATA

If the engine works badly or with faults, inspect a compression. Regular carrying out of this check will allow you to warn occurrence of malfunctions in advance.

For check carrying out the tester intended for diesel engines is required. Connect a tester to an adapter and twist an adapter in an aperture of a candle of heating or in an injector aperture.

The engine should be разогрет, the accumulator is charged, candles and injectors are unscrewed, wires of the locking valve and the fuel block are disconnected.

Pressure in all cylinders should be identical. The difference more than in 0,5 bar between any two cylinders means malfunction. In the serviceable engine pressure should accrue quickly. The small pressure of the first step gradually raising at the subsequent steps, specifies that piston rings are worn out. Small pressure of the first step which does not accrue at the subsequent steps, specifies in leak in valves or on the punched lining of a head. Adjournment on the bottom parts of valves can become the reason of a low compression also. Low pressure in two next cylinders practically always means that between them the head lining is punched.

If at carrying out of check you have difficulties, address to experts.