Ford Sierra

Ford Sierra
1.2. Car identification
2. Maintenance service
3. The general data
- 4. Engines
   - 4.1. Petrol engines
       4.1.1. Technical characteristics
      4.1.2. Adjustment of backlashes of valves
       4.1.3. Ignition system
       4.1.4. Fuel system
       4.1.5. The repair which is not demanding removal of the engine
      4.1.6. Removal and engine installation
      4.1.7. Engine dismantling
      4.1.8. Identification of co-operating parts
      4.1.9. Engine assemblage
      4.1.10. Replacement of pistons
      4.1.11. Removal and installation of an intermediate shaft
      4.1.12. System timing
      4.1.13. Greasing system
       4.1.14. Cooling system
      4.1.15. A suspension bracket of the power unit
      4.1.16. System of release of the fulfilled gases
    4.2. The diesel engine
5. Coupling
6. Transmissions
7. A kardannyj shaft and the back bridge
8. A steering
9. Suspension brackets
10. Brake system
11. A body
12. An electric equipment

4.1.10. Replacement of pistons

The prevention

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

1. To squeeze out on a press fingers of pistons.
2. To lay rods on a plate and to check up, whether they are deformed.
3. To establish the adaptation 21.014 in a vice and to extend against the stop its directing finger.
4. To establish in the same direction the piston a sign "Front", and also a rod an oil spray.
5. To arrange the piston in the adaptation so that an arrow at the bottom of the piston has been directed forward.
6. To insert against the stop directing finger into a piston aperture.
7. To press a piston finger into an aperture in stop on a piston opposite side so that its head it was made even to internal edge of foot.
8. To establish in the adaptation the remote plug corresponding to given type of the engine.
9. To put on a head of a rod signs the handle "thermochrome" (Faber-Castell 2815) and to heat up it while colour of a sign will not change on the colour corresponding to external colour of the handle. It means that the rod head has heated up to the temperature necessary for запрессовки of a finger in the plug of a head (260 –300 ).
10. Quickly to transfer a rod and to place it in the piston on an adjusting shaft. To insert a piston finger against the stop.
11. To wait, while the rod will not cool down and to check up correctness of connection of the piston with a rod