Ford Sierra

1982-1993 of release

Repair and operation of the car

Ford Siyerra
+ 1.2. Identification of the car
+ 2. Maintenance
+ 3. General data
- 4. Engines
   - 4.1. Petrol engines
      + 4.1.1. Technical characteristics
      4.1.2. Adjustment of gaps of valves
      + 4.1.3. System of ignition
      + 4.1.4. Fuel system
      + 4.1.5. The repair which is not demanding removal of the engine
      4.1.6. Removal and installation of the engine
      4.1.7. Dismantling of the engine
      4.1.8. Identification of the interacting parts
      4.1.9. Assembly of the engine
      4.1.10. Replacement of pistons
      4.1.11. Removal and installation of an intermediate shaft
      4.1.12. System of gas distribution
      4.1.13. Lubrication system
      + 4.1.14. Cooling system
      4.1.15. Suspension bracket of the power unit
      4.1.16. System of production of the fulfilled gases
   + 4.2. Diesel engine
+ 5. Coupling
+ 6. Transmissions
+ 7. Driveshaft and back bridge
+ 8. Steering
+ 9. Suspension brackets
+ 10. Brake system
+ 11. Body
+ 12. Electric equipment

4.1.10. Replacement of pistons

PERFORMANCE ORDER

Prevention

Always it is necessary to replace a set of four pistons together with fingers. In case of need grindings of one cylinder it is necessary to grind everything and to replace all pistons together with fingers. Identical diameter also means that they have identical weight that, in turn, is a condition of the correct balancing of the engine.

1. To squeeze out fingers of pistons on the press.

2. To lay rods on a plate and to check whether they are deformed.

3. To install adaptation 21.014 in a vice and to extend against the stop his directing finger.

4. To install in the same direction the piston by the sign "Front", and also a rod an oil spray.

5. To arrange the piston in adaptation so that the arrow at the bottom of the piston was directed forward.

6. To implant against the stop the directing finger into a piston opening.

7. To press a piston finger into an opening in foot on the opposite side of the piston so that its head was made even to an inner edge of foot.

8. To install the remote plug corresponding to this type of the engine in adaptation.

9. To put on a rod head signs with the thermochrome handle (Faber-Castell 2815) and to heat it until color of a sign changes for the color corresponding to external color of the handle. It means that the head of a rod heated up to temperature necessary for a finger press fitting in the head plug (260 ° –300 °C).

10. To quickly transfer a rod and to place it in the piston on an adjusting shaft. To implant a piston finger against the stop.

11. To wait until the rod cools down and to check correctness of connection of the piston with a rod