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
|
| Engine type: |
| – till December, 1986 (Sierra '83) |
YTT (Peugeot XD2P)
|
| – since January, 1987 (Sierra '87) |
YTP
|
| Diameter of the cylinder |
94 mm
|
| Piston stroke |
83 mm
|
| Working volume |
2304 cm3
|
Compression pressure:
| – nominal |
2,5 MPas
|
| – minimum |
2,0 MPas
|
| – an admissible difference between cylinders |
0,5 MPas
|
| Rated power |
49 kW (67 h.p.)
|
| Nominal speed |
4200 rpm
|
| Maximum torque |
139 Nanometer
|
Speed at the maximum moment
|
2000 rpm
|
Head of the block of tsilinr
The head is made of light alloy with the inserted combustion chambers, saddles and guides of valves.
| Height of a head of the block of cylinders |
90 ± 0,15 mm
|
| Maximum size of regrinding of the lower plane of a head of the block of cylinders |
0,5 mm
|
| Maximum not planeness of the lower plane of a head of the block of cylinders: |
| – cross |
0,1 mm
|
| – on diagonal |
0,2 mm
|
Combustion chambers
Vortex combustion chambers, steel, inserted into a head of the block of cylinders and recorded by means of a ball.
| Combustion chamber type |
vortex Ricardo Comet Mark V
|
| Diameter of a ball |
3 mm
|
| Vystupaniye of vortex cameras from the lower plane of a head of the block of cylinders |
0 – 0,03 mm
|
Saddles of valves
Saddles of valves of a vpressovana in a head of the block of cylinders.
| Corner of a working facet of a saddle of the valve:
| – inlet |
120 °
|
| – final |
90 °
|
| Width of a working facet |
2,2 – 2,5 mm
|
| Outer diameter of saddles of inlet valves: |
| – nominal |
42,275 – 43,325 mm
|
| – repair |
42,475 – 42,525 mm
|
| Outer diameter of saddles of final valves: |
| – nominal |
36,275 – 36,525 mm
|
| – repair |
36,475 – 36,525 mm
|
Guides of valves
Guides of valves are pressed in a head of the block of cylinders and are identical both for inlet, and to final valves.
| Outer diameter: |
| – nominal |
14,048 – 14,059 mm
|
| – the first repair |
14,280 – 14,290 mm
|
| – the second repair |
14,579 – 14,590 mm
|
| Internal diameter |
8,520 – 8,542 mm
|
| Length |
55 mm
|
| Distance between a guide and the lower plane of a head of the block of cylinders |
27,95 – 28,05 mm
|
Valve
The valve are established in a head of the block of cylinders vertically and in parallel each other (at right angle to the lower plane of a head of the block of cylinders).
| Diameter of a plate: |
| – inlet valve |
40,5 mm
|
| – final valve |
33,5 mm
|
| Diameter of a core: |
– inlet valve |
8,473 – 8,495 mm
|
| – final valve |
8,453 – 8,475 mm
|
| The maximum gap of the valve in a guide |
0,15 mm
|
| Corner of a working facet: |
| – inlet valve |
120 °
|
| – final valve |
90 °
|
| Full length of the valve |
116,25 mm
|
| Deepening of valves of rather lower plane of a head of the block of cylinders: |
0,75 – 1,15 mm.
|
| Working gap of valves (at the cold engine) |
| Gap of inlet valves |
0,30 mm
|
| Gap of final valves |
0,35 mm
|
Springs of valves
About two springs on each valve, identical to inlet and final valves are used.
| Free length: |
| – internal spring |
41,00 mm
|
| – external spring |
44,6 mm
|
| Length under load of 155 N (15,8 kg): |
| – internal spring |
22 ± 0,5 mm
|
| – external spring |
26 ± 0,5 mm
|
| Diameter of a wire of a spring: |
| – internal spring |
2,3 mm
|
| – external spring |
3,8 mm
|
| Internal diameter: |
| – internal spring |
15,0 0 + 0,40 mm
|
| – external spring |
23,2 0 + 0,40 mm
|
| Installation method: the end of a spring with the compressed rounds, has to be from a head of the block of cylinders |
Laying of a head of the block of cylinders
Laying of a head of the block of cylinders was made of synthetic material and had originally (engines with number below SH 79876) two thickness, and then (engines with number above SH 79876) three thickness. Thickness of laying is selected depending on a vystupaniye of pistons over the top plane of the block of cylinders of the engine. Thickness of laying is identified on number of cuts on its edge.
|
Vystupaniye of pistons (engines with number below SH 79876):
|
|
– less than 0,84 mm
|
laying 1,58 mm thick (designation: 2 cuts)
|
|
– more than 0,84 mm
|
laying 1,70 mm thick (designation: 3 cuts)
|
|
Vystupaniye of pistons (engines with number above SH 79876):
|
|
– from 0,69 to 0,79 mm
|
Laying 1,53 mm thick (designation: 2 cuts)
|
|
– from 0,79 to 0,89 mm
|
laying 1,63 mm thick (designation: 3 cuts)
|
|
– more than 0,89 mm
|
laying 1,73 mm thick (designation: 4 cuts)
|
|
As spare parts laying only of new type (three thickness) are made
|
|
|
