Ford Siyerra
+ 1.2. Car identification
+ 2. Maintenance
- 3. General data
+ 3.1. Cars with petrol engines
- 3.2. Cars with diesel engines
- 3.2.1. Changes in a car design from 1988 to 1993.
3.2.1.1. Dm3 engine 2,3
- 3.2.1.2. Dm3 engine 1,8
3.2.1.2.1. Technical characteristics
3.2.1.2.2. Head of the block of cylinders
3.2.1.2.3. Block of cylinders
3.2.1.2.4. Krivoshipno-shatunny mechanism
3.2.1.2.5. Gazoraspredeleniye system
3.2.1.2.6. Greasing system
3.2.1.2.7. Cooling system
3.2.1.2.8. Fuel system
3.2.1.2.9. Tightening moments
3.2.1.2.10. Engine adjustment
+ 3.2.1.3. Fuel system
+ 3.2.1.4. The repair which is not demanding removal of the engine
3.2.1.5. Removal and engine installation
3.2.1.6. Engine dismantling
3.2.1.7. Check of details
3.2.1.8. Check of gaps of a cranked shaft and rods
3.2.1.9. Engine assembly
3.2.1.10. Greasing system
3.2.1.11. Cooling system
3.2.1.12. Coupling
3.2.1.13. Mechanical five-speed transmission of MT 75 type
3.2.1.14. Power shaft and back bridge
3.2.1.15. Steering system
3.2.1.16. Forward suspension bracket
3.2.1.17. Brake system
3.2.1.18. Electric equipment
3.2.1.19. General data
+ 4. Engines
+ 5. Coupling
+ 6. Transmissions
+ 7. Driveshaft and back bridge
+ 8. Steering
+ 9. Suspension brackets
+ 10. Brake system
+ 11. Body
+ 12. Electric equipment
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Krivoshipno-shatunny mechanism
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1–cranked shaft,
2–intermediate shaft,
3–loose leaves of radical bearings of a cranked shaft,
4–persistent half rings of a cranked shaft,
5–pulley,
6–covers of radical bearings,
7–rod,
8–cover of a rod,
9–loose leaves of shatunny bearings,
10-piston,
11-piston rings,
12-lock spring ring,
13-piston finger,
14-plug of a head of a rod |
Cranked shaft
The cranked shaft is made of cast iron together with eight counterbalances and leans on five radical bearings.
| Diameter of radical necks: |
| – the nominal |
53,970-53,990 mm
|
| – repair-0,25 |
53,720-53,740 mm
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| – repair-0,50 |
53,470-53,490 mm
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| Diameter of shatunny necks: |
| – the nominal |
48,970-48,990 mm
|
| – repair-0,25 |
48,720-48,740 mm
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| – repair-0,50 |
48,470-48,490 mm
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| Width of the average radical bearing: |
| – the nominal |
31,070-31,130 mm
|
| – the repair |
32,070-32,130 mm
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| Radial gap of radical bearings of a cranked shaft |
0,015-0,062 mm
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| Axial gap of a cranked shaft |
0,093-0,306 mm
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| The maximum moment of a friction in radical bearings of a cranked shaft (without the established knots the piston rod) |
10 Nanometers
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Loose leaves of radical bearings
Loose leaves thin-walled. The manufacturer does not give the sizes of loose leaves.
As spare details loose leaves nominal and repair are delivered: reduced by 0,25 mm and 0,50 mm.
Rods
Rods with four distances between axes of openings of a head and the basis for providing one extent of compression in all cylinders of the engine are made. Designations "And", "In", "With" and "D", put on a lateral surface of covers of rods, define selective group of distance between axes of openings of a head and the basis.
Method of installation of a rod concerning the block of cylinders: the letter "F" put on a lateral surface of a rod, should be from a drive of system of a gazoraspredeleniye.
Diameter of an opening of a nest of the loose leaf of the shatunny bearing: 52,000–52,020 mm.
Diameter of an opening in the plug of a head of a rod: 26,012–26,020 mm.
Distance between axes of openings of a head and the rod basis:
– group A: 129,880–129,940 mm;
– group B: 129,941–130,000 mm;
– group C: 130,011–130,060 mm;
– group D: 130,061–130,120 mm.
Loose leaves of shatunny bearings
Thin-walled loose leaves. The manufacturer does not give the sizes of loose leaves. As spare details loose leaves nominal and repair are delivered: reduced by 0,25 mm and 0,50 mm.
Pistons
Pistons from an easy alloy with the filled-in steel insert are used.
| Diameters of pistons (measured at right angle to an axis of a piston finger): |
| – the nominal: |
| • group A |
82,460-82,475 mm
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| • group B |
82,475-82,490 mm
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| • group C |
82,620-82,635 mm
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| • group D |
82,635-82,650 mm
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| – the repair: |
| • group E (+0,5 mm) |
82,961-82,979 mm
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| • group F (+1,0 mm) |
83,461-83,479 mm
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| Piston gap in the cylinder: |
| – groups A and D |
0,025-0,055 mm
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| – groups E and F |
0,021-0,054 mm
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| Vystupaniye in VMT of a bottom of the piston over the top plane of the block of cylinders |
0,50-0,84 mm
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Piston fingers
The finger rotates in the piston and the plug of a head of a rod (a so-called floating finger) and is fixed from longitudinal moving by two spring lock rings.
Installation of lock rings in a piston flute: cut up.
External diameter of a finger: 25,996–26,000 mm.
Piston rings
Each piston has three rings: two sealing and one maslosjemny.
Installation method: the inscription "Top" (top) is directed towards a piston bottom.
Width of the lock (cut) of the ring located in the cylinder:
– top ring (sealing): 0,35–0,50 mm;
– average ring (sealing): 0,35–0,50 mm;
– bottom ring (maslosjemny): 0,25–0,45 mm.
Gap in a piston flute:
– top ring (sealing): 0,090–0,122 mm;
– average ring (sealing): 0,050–0,082 mm;
– bottom ring (maslosjemny): 0,030–0,065 mm.
Flywheel
Radial palpation: 0,13 mm.
Number of teeths of a wreath: 135. |
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