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Audi 100/A61990-1997 of releaseRepair and car operation |
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Audi 100/A6 + 1. Maintenance instruction + 2. Maintenance - 3. Engines + 3.1.1.2. Technical characteristics + 3.1.2. 5-cylinder engines - 3.1.3. 6-cylinder engines 3.1.3.2. Gear belt 3.1.3.3. Head of cylinders 3.1.3.4. Valves 3.1.3.5. Replacement of maslosjemny caps of valves 3.1.3.6. Check of directing valves 3.1.3.7. Fair processing of a landing facet of the saddle / valve 3.1.3.8. Grinding in of saddles of valves 3.1.3.9. Compression check 3.1.3.10. Poliklinova belt 3.1.3.11. Greasing system 3.1.3.12. Oil pump + 3.2. Diesel engines + 3.3. Removal and partition of engines + 4. Cooling system + 5. Heating and ventilation + 6. Fuel system + 7. Exhaust system + 8. Systems of start, ignition + 9. Transmission + 10. Brake system + 11. Suspension brackets, steering + 12. Body + 13. Electric equipment + 14. Good advice |
3.1.3.9. Compression check
Check of a compression allows to draw conclusions on an engine condition. Namely, at check it is possible to establish, as it should be silt valves and pistons (piston rings), or they are worn-out. Besides, results of check show, whether to replace the engine or to it the complete repair is required. For check it is required компрессометр which for petrol engines is offered in specialized shops for reasonable price. The most admissible difference of pressure in separate cylinders can make 3,0 bar (for diesel engines 5,0 a bar). In case one or several cylinders in comparison with others have a difference of pressure more than 3,0 bar, it is the instruction on defective valves, worn-out piston rings or working surfaces of cylinders. If the deterioration border is reached, it is necessary to repair or replace the engine.
Check of a compression should be carried out on the heated-up engine. The temperature of the engine should make at least 30 ° Page.
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