Toyota Corolla

1992-1998 of release

Repair and car operation

Toyota Corolla
+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engines
   + 3.1. Petrol engines
   - 3.2. Diesel engine
      3.2.1. Specifications
      3.2.2. Replacement of a gear belt
      3.2.3. Removal of a head of cylinders
      3.2.4. Dismantling of a head of cylinders
      3.2.5. Partition of a head of cylinders
      3.2.6. Assembly of a head of the block of cylinders
      3.2.7. Installation of a head of cylinders
      3.2.8. Check and adjustment of gaps of valves
      3.2.9. Check of a compression of cylinders
      3.2.10. Pistons and rods
      3.2.11. Measurement of cylinders
      3.2.12. Assembly of pistons and rods
      3.2.13. Installation of pistons and rods
      3.2.14. Cranked shaft and flywheel
      + 3.2.15. Cooling system
      + 3.2.16. Greasing system
      3.2.17. Device of injection of diesel fuel
      3.2.18. Car operation on diesel fuel
      3.2.19. Fuel filter
      3.2.20. Fuel pump of a high pressure
      3.2.21. Nozzles
      3.2.22. Glow plugs
      3.2.23. Adjustment of a mode of idling
      3.2.24. Adjustment of the maximum turns
      + 3.2.25. Good advice to owners of the diesel engine
   + 3.3. Engine electric equipment
+ 4. Systems of cooling, heating
+ 5. Fuel, exhaust systems
+ 6. System of decrease in toxicity
+ 7. Transmissions
+ 8. Coupling and semi-axes
+ 9. Brake system
+ 10. Suspension bracket and steering
+ 11. Body
+ 12. Electric equipment

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3.2.9. Check of a compression of cylinders


At suspicion that the cylinder has the lowered compression, it is necessary to check by means of a measuring instrument of a compression it in separate cylinders. On the diesel engine it is more difficult to do it, as the adapter which is rolled instead of candles is required. Pistons, valves or piston rings which do not hold pressure thus are defined. If the engine still rather new, the compression about 32,0 Bar has to be provided. Limit of wear is value 20,0 Bar. If the compression is lower than this value, it is necessary to solve, replace or repair the engine. Important also that, one or all cylinders have a bad compression. If, for example, the difference at separate cylinders makes 5,0 atm, maybe, that at the "bad" cylinder valves hang and repair only heads of cylinders, that is repair of valves is required. It is possible also that burned piston rings in flutes that leads to a pressure stravlivaniye along the piston in the krivoshipno-shatunny mechanism. At identical loss of a compression it is possible to judge in the majority a case wear of cylinders. For check of a compression warm up the engine to working temperature and turn out glow plugs. Disconnect a wire from the valve останова supply of fuel. Connect the device for compression check in compliance with the maintenance instruction of the manufacturer. The assistant should sit down in the car and include approximately for 5 seconds a starter, thus pressing a gas pedal against the stop. Consistently check a compression in all cylinders and compare to a preset value. If the compression is small in one cylinder, it is possible as first aid for temporary restoration of density to fill in in a candle opening the corresponding preparation. Certificates of these products can be received at dealers in auto parts.