Ford Siyerra
+ 1.2. Identification of the car
+ 2. Maintenance
+ 3. General data
- 4. Engines
- 4.1. Petrol engines
- 4.1.1. Technical characteristics
4.1.1.1. Head of the block of cylinders
4.1.1.2. Block of cylinders of the engine
4.1.1.3. Krivoshipno-shatunny mechanism
4.1.1.4. System of gas distribution
4.1.1.5. Lubrication system
4.1.1.6. Cooling system
4.1.1.7. Fuel system
4.1.1.8. System of ignition
4.1.1.9. Tightening moments
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
|
Bent shaft
The steel bent shaft leans on five bearings.
| Axial side play |
0,08 – 0,28 mm
|
| Diameters of radical necks: |
| – nominal size |
56,970 – 56,990 mm
|
| – repair size-0,25 |
56,720 – 56,740 mm
|
| – repair size-0,50 |
56,470 – 56,490 mm
|
| – repair size-0,75 |
56,220 – 56,240 mm
|
| – repair size-1,00 |
55,970 – 55,990 mm
|
| Gap in radical bearings |
0,010 – 0.064 mm
|
Prevention
To take measurement by means of measuring cores of Plastigage.
|
| Diameters of conrod necks: |
| – nominal size |
51,980 – 52,000 mm
|
| – repair size-0,25 |
51,730 – 51,750 mm
|
| – repair size-0,50 |
51,480 – 51,500 mm
|
| – repair size-0,75 |
51,230 – 51,250 mm
|
| Thickness of persistent half rings: |
| – nominal size |
2,30 – 2,35 mm
|
| – repair size |
2,50 – 2,55 mm
|
Flywheel
The flywheel is fixed on a flange of a bent shaft by six bolts.
Intermediate shaft
The intermediate shaft is located in a forward part of the block of cylinders, on the left side. Provides the ignition distributor drive, and also oil and fuel pumps.
Axial gap – 0,050–0,204 mm.
Rods
Rods are shaped from steel and in section the dvutavrovy profile has them. The piston finger is pressed in a rod head.
| Diameter of an opening of a head of a rod |
23,964 – 23,976 mm
|
| Finger tightness in a rod head: |
0,018 – 0,039 mm
|
| Temperature of heating of a head of a rod in the course of installation of a finger |
250 – 300 °C
|
| Diameter of an opening of the basis of a rod |
55,000 – 55,020 mm
|
| Internal diameters of openings of connecting rods: |
| – nominal size |
52,006 – 52,044 mm
|
| – repair size-0,25 |
51,756 – 51,794 mm
|
| – repair size-0,50 |
51,706 – 51,744 mm
|
| – repair size-0,75 |
51,256 – 56,294 mm
|
| – repair size-1,00 |
51,006 – 51,044 mm
|
| Gap in radical bearings |
0,006 – 0.064 mm
|
Prevention
To take measurement by means of measuring cores of Plastigage.
|
| Admissible not perpendicularity of an axis of openings concerning a rod axis: |
| – head opening |
0,10 mm
|
| – basis opening |
0.15 mm
|
Pistons
Pistons are manufactured of light alloy, without flutes on the carrying-out part, with the filled-in invarny ring limiting thermal errors of the sizes. In the top part there are three flutes for piston rings. The axis of an opening of a piston finger is displaced concerning a piston axis. Pistons are delivered in sets together with fingers and rods.
Installation method: the arrow at the bottom of the piston has to be directed towards a forward part of the engine (towards the drive of system of gas distribution).
Piston fingers
The fingers made of alloy of steel and subjected to thermal treatment are pressed in heads of rods (hot installation at a temperature of head of 250 ° –300 °C) and turn in piston naves.
| Length: |
| – dvigatel1,3 dm3
|
60,0 – 60,8 mm
|
| – dvigatel1,6 dm3
|
68,0 – 68,8 mm
|
| – dvigatel2,0 dm3
|
72,0 – 72,8 mm
|
| Diameter: | |
| – designation in red color |
23,994 – 23,997
|
| – designation in blue color |
23,997 – 24,000
|
| – designation in red color |
22,000 – 24,003
|
| Gap in piston naves |
0,008 – 0,014 mm
|
| Tightness in a rod head |
0,018 – 0,039 mm
|
Sizes of pistons (mm)
|
Engine
|
1,3 dm3
|
1,6 dm3
|
2,0 dm3
|
| Diameters are nominal standard: |
| – group 1 |
78,965 – 78,975
|
87,615 – 87,625
|
90,765 – 90,775
|
| – group 2 |
78,975 – 78,985
|
87,625 – 87635
|
90,775 – 90,785
|
| – group 3 |
78,985 – 78,995
|
87,635 – 87,645
|
90,785 – 90,795
|
| – group 4 |
78,995 – 79,005
|
87,645 – 87,655
|
90,795 – 90,805
|
| Diameters of the repair sizes: |
| – standard |
78,900 – 79,015
|
87,640 – 87,665
|
90,780 – 90,805
|
| – with the admission 0,5 |
79,490 – 79,515
|
88,140 – 88,165
|
91,280 – 91,305
|
| – with the admission 1,0 |
79,990 – 80,015
|
88,640 – 88,665
|
91,780 – 91,805
|
| Gap of new pistons in tsilinra |
0,015 – 0,050
|
0,015 – 0,050
|
0,025 – 0,060
|
Piston rings
Each piston has three rings: two sealing and one oil scraper.
| Gap of the lock of the sealing rings (located in the cylinder): |
| – dvigatel1,3 dm3 and dvigatel1,6 dm3
|
0,30 – 0,50 mm
|
| – dvigatel2,0 dm3
|
0,038 – 0,048 mm
|
| Gap of the lock of an oil scraper ring |
0,40 – 1,40 mm
|
Arrangement of locks of rings:
– sealing – on 150 ° (to the opposite sides) concerning the lock of an oil scraper ring;
– oil scraper – the lock of the holding apart spring is put according to the direction of an arrow at the bottom of the piston; locks of the top and lower plates are installed on 25 mm from the direction of an arrow to the right and to the left.
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