Ford Siyerra
+ 1.2. Identification of the car
+ 2. Maintenance
+ 3. General data
- 4. Engines
+ 4.1. Petrol engines
- 4.2. Diesel engine
- 4.2.1. Technical characteristics
4.2.1.1. Block of cylinders
4.2.1.2. Krivoshipno-shatunny mechanism
4.2.1.3. Lubrication system
4.2.1.4. Fuel system
4.2.1.5. Tightening moments
4.2.2. Check and adjustment of gaps of valves
+ 4.2.3. Fuel system
+ 4.2.4. Nozzles
4.2.5. Glow plugs
4.2.6. Check of a compression
4.2.7. Removal of air from fuel system
4.2.8. Fuel filter
4.2.9. Fuel pump, installation of the beginning of injection of fuel
4.2.10. Adjustment of speed of idling
+ 4.2.11. The repair which is not demanding removal of the 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 bent shaft is shaped from steel together with four counterbalances and leans on five radical bearings. |
| Axial side play |
0,08 – 0,29 mm
|
| Diameters of radical necks: |
| – nominal size |
59,994-60,021 mm
|
| – 1st repair size |
59,694 – 59,721 mm
|
| – 2nd repair size |
59,494 – 59,521 mm
|
| – 3rd repair size |
59,194 – 59,221 mm
|
| Length of radical necks: |
| – lobby |
38,40 – 38,55 mm
|
| – intermediate |
30,40 – 30,60 mm
|
| – average |
37,76 – 37.81 mm
|
| – back |
37,84 – 38,04 mm
|
| Gap of necks in radical bearings |
0,040 – 0.098 mm
|
| Diameters of conrod necks: |
| – nominal size |
54,984 – 55,011 mm
|
| – repair size |
54,684 – 54,711 mm
|
| Length of conrod necks |
36,00 – 36,10 mm
|
| Thickness of persistent half rings: |
| – nominal size |
2,30 – 2,33 mm
|
| – repair size |
2,50 – 2.53 mm
|
Radical inserts
| These are thin-walled inserts with a cover from a steel sheet and antifrictional material from tsinko-aluminum alloy. |
| Width of inserts: |
| – forward, average and back |
29,80 mm
|
| – intermediate |
21,80 mm
|
Rods
| Rods are shaped from steel and have a dvutavrovy profile in a section and a basis socket straight line. |
| Distance between axes of openings of a head and the basis |
150 mm
|
| Internal diameter of the plug of a head of a rod (after installation) |
28,0+0,02 – 28,0+0,07 mm
|
| Gap of a conrod neck in the conrod bearing |
0,040 – 0,098 mm
|
Connecting rods
| These are thin-walled inserts with a cover from a steel sheet and antifrictional material from tsinko-aluminum alloy. |
| Thickness of inserts: |
| – nominal |
1,819 ± 0,003 mm
|
| – repair |
1,969 ± 0,003 mm
|
| Width of inserts |
29,0 mm
|
Pistons
| Pistons are manufactured of aluminum-silicon alloy. |
| The maximum difference of mass of a set of pistons of the engine should not exceed 5 g |
| Method of installation in the cylinder |
Deepenings at the bottom of the piston (for plates of valves and the combustion chamber) have to be from the fuel pump
|
| Diameter of the piston (measured under an opening of a piston finger and in parallel to an axis of this opening) |
| – nominal: |
| • group A |
93,855 – 93,870 mm
|
| • group B |
93,870 – 93,885 mm
|
| – 1st repair size: |
| • group C |
94,055 – 94,070 mm
|
| • group D |
94,070 – 94,085 mm
|
| – 2nd repair size: |
| • group E |
94,255 – 94,270 mm
|
| • group F |
94,270 – 94,285 mm
|
| – 3rd repair size: |
| • group G |
94,455 – 94,470 mm
|
| • group N |
94,470 – 94,485 mm
|
| Vystupaniye of pistons in VMT over the top plane of the block of cylinders |
0,54 – 0,89 mm
|
| Piston gap in the cylinder |
0,130 – 0,160 mm
|
Piston fingers
| The finger is made of steel and superficially tempered. |
| 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 movement by two spring lock rings |
| Outer diameter |
27,994 – 28,000 mm
|
Piston rings
| Each piston has three rings: |
| – top |
Sealing with the chromeplated, convex external working surface
|
| – average |
Sealing with a conic external working surface
|
| – lower |
Oil scraper U-Flex type
|
| Installation method: concerns average and lower rings, the inscription of "Torahs" (top) is directed towards a piston bottom. |
| Width of the lock of a ring put in the cylinder: |
| – top ring |
0,40 – 0,65 mm
|
| – average ring |
0,35 – 0,60 mm
|
| – lower ring |
0,15 – 0,30 mm
|
| Thickness of rings: |
| – top |
1,978 – 1,990 mm
|
| – average |
1,978 – 1,990 mm
|
| – lower |
4,478 – 4,490 mm
|
| Gap of rings in piston flutes |
0,032 - 0,090 mm
|
System of gas distribution
The system of gas distribution contains:
– the cam-shaft installed in the block of cylinders;
– pushers;
– cores of pushers;
– levers of valves and valve.
The cam-shaft is put in action by a two-row chain from a bent shaft. Distribution phases
| Phases of distribution are defined at a zero gap of valves for raising of final and inlet valves of equal 0,60 mm. |
| OZD |
12 ° before VMT
|
| ZZD |
40 ° after NMT
|
| OZW |
56 ° before NMT
|
| ZZW |
12 ° after VMT
|
| OZD and ZZD |
Respectively opening and closing of the inlet valve
|
| OZW and ZZW |
Respectively opening and closing of the final valve
|
| Working gap of valves (in a cold state): |
| – gap of inlet valves |
0,30 mm
|
| – gap of final valves |
0,35 mm
|
Cam-shaft
The pig-iron cam-shaft has cams with the improved thermal characteristics and is installed in the block of cylinders on three bearings.
| Diameters of necks |
41,925 – 41,950 mm
|
| Radial side play |
0,05 – 0,11 mm
|
| Axial side play |
0,05 – 0,15 mm
|
| Raising of cams (at a zero gap of valves): |
| – inlet: |
9,12 mm
|
| – final: |
9,12 mm
|
|
|
