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FORD SCORPIO1985-1994 of releaseRepair and car operation |
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Ford Skorpio + 1.1. Car identification + 2. Maintenance service - 3. Engines + 3.1. Engine OHC + 3.2. Engine DOHC - 3.3. Engine V6 3.3.1. A technical characteristics 3.3.2. The repair which is not demanding removal of the engine 3.3.3. Engine removal - 3.3.4. Dismantling and check of details of the engine 3.3.4.1. Engine dismantling 3.3.4.2. Check of degree of deterioration of details of the engine 3.3.4.3. Axis knot коромысел 3.3.4.4. Pushers of valves and a bar of pushers 3.3.4.5. A camshaft 3.3.4.6. Heads of the block of cylinders 3.3.4.7. Cylinders 3.3.4.8. Check and restoration of pistons and piston rings 3.3.4.9. Piston fingers and rods 3.3.4.10. A cranked shaft 3.3.4.11. Radical and шатунные bearings 3.3.4.12. Distributive gear wheels 3.3.4.13. A flywheel + 3.3.4.14. Greasing system 3.3.4.15. Ventilation system картера + 3.3.4.16. Engine assemblage 3.3.4.17. Adjustment of backlashes of valves 3.3.4.18. Auxiliary details of the engine 3.3.4.19. Engine installation 3.3.4.20. Start of the engine after major repairs or restoration + 3.3.5. Changes in a design of engines V6 2,4 and 2,9 дм3 + 3.4. Ignition and engine management systems + 3.5. Diesel engines + 4. Cooling system + 5. Fuel system + 6. Coupling + 7. Transmissions + 8. A kardannyj shaft and the back bridge + 9. A steering + 10. Suspension brackets + 11. Brake system + 12. Wheels and tyres + 13. A body + 14. An electric equipment |
3.3.4.8. Check and restoration of pistons and piston rings
Deterioration of pistons and piston rings can be found out at occurrence of signs of the raised expense of oil and a low compression that is sometimes connected with deterioration of cylinders. In due course flutes in which rings on the piston settle down, also can increase in sizes. The backlash between a ring and the piston in a flute should not exceed 0,102 mm for two top sealing rings and 0,076 mm for bottom маслосъемного a ring. However seldom happens that the piston has worn out only in flutes of rings, and the requirement for replacement on one only to this reason hardly can arise. At any replacement of pistons the weight of four complete sets of pistons and rods should be within change in 8 grammes to keep the general balancing of the engine.
The most simple way of installation of rings is use probeа, and installation of rings is made on one, since bottom маслосъемного rings. Then probe it is possible to move downwards over other flutes of piston rings until the necessary flute will be reached. Then the piston ring moves with probeа in the necessary flute. Other method of installation of rings is their deduction big and index fingers. Such method demands strong hands and the big care as the ring can be opened too strongly and to break. |
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