4. Repair of the engine
Specifications
The repair procedures which are not demanding extraction of the engine from the car - the petrol engine
General parameters
|
Designations |
|
|
Engine of 1580 cm 3 |
XU5 |
|
Engine of 1761 cm 3 |
XU7 |
|
Engine of 1998 cm 3 |
XU10 |
|
Engine code * |
|
|
Engine of 1580 cm 3 |
BFZ (XU5 JP/Z) |
|
Engine of 1761 cm 3 |
LFZ (XU7 JP/Z or XU7 JP/L3) or L6A (XU7 JP/K) |
|
Engine of 1998 cm 3 |
RFX (XU10 J2C/Z or XU10 J2C/L3), R6D (XU10 J2C/K) or RFY (XU J4D/Z or XU10 J4D/L3) |
|
Number of valves |
|
|
Everything, except 1998 cm 3 RFY |
8 |
|
1998 cm 3 RFY |
16 |
|
Diameter of cylinders |
mm |
|
Engine of 1580 cm 3 |
83.00 |
|
Engine of 1761 cm 3 |
83.00 |
|
Engine of 1998 cm 3 |
86.00 |
|
Course of pistons |
mm |
|
Engine of 1580 cm 3 |
73.00 |
|
Engine of 1761 cm 3 |
81.40 |
|
Engine of 1998 cm 3 |
86.00 |
|
|
|
|
Direction of rotation of a bent shaft |
Clockwise (looking on the right side of the car) |
|
|
|
|
Location of the first cylinder |
From the party of the block turned to transmission |
|
Extent of compression |
|
|
Engine of 1580 cm 3 |
9.25:1 |
|
Engine of 1761 cm 3 |
9.25:1 |
|
Engine of 1998 cm 3 |
9.5:1 |
|
|
|
|
Ignition order (all models) |
1-3-4-2 |
|
The maximum developed power |
kW/h.p. |
|
Engine of 1580 cm 3 |
66/90 or 65/89 (at 6000 rpm) |
|
Engine of 1761 cm 3 |
|
|
• L6A |
70/95 (at 6000 rpm) |
|
• LFZ |
74/101 (at 6000 rpm) |
|
Engine of 1998 cm 3 |
|
|
• RFX and R6D |
90/123 or 89/121 (at 5750 rpm) |
|
• RFY |
114/155 or 112/152 (at 6500 rpm) |
|
Maximum torque |
Nanometer |
|
Engine of 1580 cm 3 |
130 (at 2600 rpm) |
|
Engine of 1761 cm 3 |
|
|
• L6A |
142 (at 3000 rpm) |
|
• LFZ |
153 (at 3000 rpm) |
|
Engine of 1998 cm 3 |
|
|
• RFX and R6D |
176 (at 2750) |
|
• RFY |
183.5 (at 3500) |
* The code of the engine is beaten out on Schild, fixed in front at the left end face of the block of cylinders (engines of 1580 cm of 3 and 1761 cm 3), or directly on the forward surface of the block, is more left than an oil filter (the engine of 1998 cm 3). The code given in brackets is identification number of manufacturer and can not be mentioned in the present manual.
Camshaft
|
Drive |
|
|
Zubchatoremenny transfer |
|
|
• Number of bearings |
5 |
|
|
|
|
Diameter of bearing necks |
At the time of drawing up the Management of manufacturers it is not stipulated |
|
Diameter of bearings in a head of cylinders |
At the time of drawing up the Management of manufacturers it is not stipulated |
Valvate gaps, mm
|
Inlet valves |
0.20 ± 0.05 |
|
Final valves |
0.40 ± 0.05 |
Lubrication system
|
|
|
|
Type of the oil pump |
Gear, with the chain drive from the right end of a bent shaft |
|
The minimum admissible pressure of oil at a temperature of 80 °C |
bar |
|
BFZ and LFZ |
5.3 (at 4000 rpm) |
|
RFX 6.4 |
6.4 (at 4000 rpm) |
|
|
|
|
Pressure of operation of the sensor switch of a control lamp, bar |
0.5 |
Efforts of tightening of threaded connections, Nanometer
|
Engines 1580 and 1761 of cm 3 |
|
|
Nuts/bolts of fastening of a cover of a head of cylinders |
10 |
|
Bolts of fastening of covers of a gas-distributing belt |
8 |
|
Bolt of fastening of a pulley of a bent shaft |
120 |
|
Bolt of fastening of a roller of a natyazhitel of a gas-distributing belt |
20 |
|
Bolt of fastening of a cogwheel of the camshaft |
35 |
|
Nuts of fastening of covers of bearings of the camshaft |
15 |
|
Bolts of fastening of a head of cylinders |
|
|
• Stage 1 |
60 |
|
• To completely weaken all bolts |
|
|
• Stage 2 |
20 |
|
• Stage 3 |
To hold on for 300 ° |
|
Bolts of fastening of the pallet of a case |
19 |
|
Bolts of fastening of an assembly bracket of the generator |
22 |
|
Bolts of fastening of the oil pump |
16 |
|
Bolts of fastening of a flywheel / driving disk |
50 |
|
Nuts of fastening of covers of conrod bearings: |
|
|
• Stage 1 |
40 |
|
• To completely weaken all nuts |
|
|
• Stage 2 |
20 |
|
• Stage 3 |
To hold on for 70 ° |
|
Nuts/bolts of fastening of covers of radical bearings |
|
|
• Fixing nuts / bolts |
54 |
|
• Side bolts of a cover of the central bearing |
16 |
|
Fixture of the right support of the power unit |
|
|
• Bolts of fastening of an arm of a support to the engine |
45 |
|
• Nuts of fastening of an arm |
45 |
|
Fixture of the left support of the power unit |
|
|
• Bolts of fastening of an arm of a support to a body |
25 |
|
• Fixing hairpin |
50 |
|
• Central nut |
80 |
|
Fixture of a back support of the power unit |
|
|
• Bolts of fastening of assembly of a support to the block |
45 |
|
• A bolt of fastening of an arm to a support |
50 |
|
• A bolt of fastening of an arm to a stretcher |
50 |
|
Engines of 1998 cm 3 |
|
|
Nuts/bolts of fastening of a cover of a head of cylinders |
10 |
|
Bolts of fastening of covers of a gas-distributing belt |
8 |
|
Bolt of fastening of a pulley of a bent shaft |
110 |
|
Bolt of fastening of a roller of a natyazhitel of a gas-distributing belt |
20 |
|
Bolt of fastening of a cogwheel of the camshaft |
35 |
|
Nuts of fastening of covers of bearings of the camshaft |
16 |
|
Bolts of fastening of a head of cylinders |
|
|
• Stage 1 |
35 |
|
• Stage 2 |
70 |
|
• Stage 3 |
To hold on for 160 ° |
|
Bolts of fastening of the pallet of a case |
19 |
|
Bolts of fastening of an assembly bracket of the generator |
22 |
|
Bolts of fastening of the oil pump |
16 |
|
Bolts of fastening of a flywheel / driving disk |
50 |
|
Nuts of fastening of covers of conrod bearings: |
|
|
• Stage 1 |
40 |
|
• Stage 2 |
20 |
|
• Stage 3 |
To hold on for 70 ° |
|
Bolts of fastening of covers of radical bearings |
70 |
|
Bolts of fastening of a raspylitelny tube of jets of supply of oil to pistons |
10 |
|
Bolts of fastening of the holder of a forward epiploon |
16 |
|
Fixture of the right support of the power unit |
|
|
• Nuts of fastening of an arm of a support |
45 |
|
• Curved fixing plate |
20 |
|
Fixture of the left support of the power unit |
|
|
• Bolts of fastening of an arm of a support to a body |
20 |
|
• Fixing hairpin |
50 |
|
• Central nut |
65 |
|
Fixture of a back support of the power unit |
|
|
• Bolts of fastening of assembly of a support to the block |
45 |
|
• A bolt of fastening of an arm to a support |
50 |
|
• A bolt of fastening of an arm to a stretcher |
70 |
The repair procedures which are not demanding extraction of the engine from the car - the diesel engine
General parameters
|
Designations |
|
|
Engine of 1905 cm 3 |
XUD9 |
|
Engine code * |
|
|
The engine of 1905 cm 3 without turbo-supercharging |
D9B (XUD9 A/L) |
|
The engine of 1905 cm 3 with a turbo-supercharging |
D8B (XUD9 TF/L) |
|
The engine of 1905 cm 3 with a turbo-supercharging |
DHX (XUD9 TF/Y) |
|
|
|
|
Diameter of cylinders, mm |
83.00 |
|
|
|
|
Course of pistons, mm |
86.00 |
|
|
|
|
Direction of rotation of a bent shaft |
Clockwise (looking on the right side of the car) |
|
|
|
|
Location of the first cylinder |
From the party of the block turned to transmission |
|
Extent of compression |
|
|
The engine of 1905 cm 3 without turbo-supercharging |
23.00:1 |
|
The engine of 1905 cm 3 with a turbo-supercharging |
21.80:1 |
|
|
|
|
Ignition order |
1-3-4-2 |
|
The maximum developed power |
kW/h.p. |
|
Models without turbo-supercharging |
(47 - 51) / (65 - 71) (at 4600 rpm) |
|
Models with a turbo-supercharging |
(66 - 67.5) / (90 - 92) (at 4000 rpm) |
|
Maximum torque |
Nanometer |
|
Models without turbo-supercharging |
118 - 120 (at 2000 rpm) |
|
Models with a turbo-supercharging |
196 (at 2250 rpm) |
|
The maximum admissible frequency of rotation of the engine without loading |
rpm |
|
Models without turbo-supercharging |
5150 ± 125 |
|
Models with a turbo-supercharging |
5100 ± 125 |
|
The maximum turns of the engine under loading |
rpm |
|
All models |
4600 ± 80 |
|
Compression pressure (at the heated-up engine and turns of a provorachivaniye) |
bar |
|
Nominal |
25 - 30 |
|
Minimum admissible |
18 |
|
|
|
|
The maximum admissible dispersion between cylinders |
5 |
* The code of the engine is beaten out on Schild, fixed on a forward wall of the block of cylinders. The code given in brackets is identification number of manufacturer and can not be mentioned in the present manual.
Camshaft
|
Drive |
Zubchatoremenny transfer |
|
Number of bearings |
3 |
|
Admissible axial side play, mm |
0.07 - 0.16 |
Valvate gaps, mm
|
Inlet valves |
0.15 ± 0.08 |
|
Final valves |
0.30 ± 0.08 |
Lubrication system
|
|
|
|
Type of the oil pump |
Gear, with the chain drive from the right end of a bent shaft |
|
The minimum admissible pressure of oil at a temperature of 90 °C |
bar |
|
Models without turbo-supercharging |
3.5 (at 4000 rpm) |
|
Models with a turbo-supercharging |
4.9 (at 4000 rpm) |
|
|
|
|
Pressure of operation of the sensor switch of a control lamp, bar |
0.8 |
Efforts of tightening of threaded connections, Nanometer
|
Bolts of fastening of a cover of a head of cylinders |
20 |
|
Bolt of fastening of a pulley of a bent shaft |
|
|
• Stage 1 |
40 |
|
• Stage 2 |
To hold on for 60 ° |
|
Bolt of fastening of covers of a natyazhitel of a gas-distributing belt |
8 |
|
Adjusting bolt of a natyazhitel of a gas-distributing belt |
18 |
|
Axial nut of a natyazhitel of a gas-distributing belt |
18 |
|
Bolt of fastening of a cogwheel of the camshaft |
45 |
|
Screws of fastening of a stripper of a cogwheel of TNVD |
10 |
|
Nut of fastening of a cogwheel of TNVD |
50 |
|
Nuts of fastening of covers of bearings of the camshaft |
20 |
|
Bolts of fastening of a head of cylinders |
|
|
- Models without turbo-supercharging |
|
|
• Stage 1 |
20 |
|
• Stage 2 |
60 |
|
• Stage 3 |
To hold on for 180 ° |
|
- Models with a turbo-supercharging |
|
|
• Stage 1 |
20 |
|
• Stage 2 |
60 |
|
• Stage 3 |
To hold on for 220 ° |
|
Bolts of fastening of the pallet of a case |
19 |
|
Bolts of fastening of the oil pump |
13 |
|
Bolts of fastening of a casing of a forward epiploon of a bent shaft |
16 |
|
Bolts of fastening of a flywheel / driving disk |
50 |
|
Nuts of fastening of covers of conrod bearings: |
|
|
• Stage 1 |
20 |
|
• Stage 2 |
To hold on for 70 ° |
|
Bolts of fastening of covers of radical bearings |
70 |
|
Bolt of fastening of a raspylitelny tube of jets of supply of oil to pistons (to model with a turbo-supercharging) |
10 |
|
Fixture of the right support of the power unit |
|
|
• Bolts of fastening of an arm of the engine (assembly of a natyazhitel) |
18 |
|
• Nuts of fastening of an arm |
45 |
|
• Bolts of a curved fixing plate |
20 |
|
Fixture of the left support of the power unit |
|
|
• Bolts of fastening of assembly of a rubber pillow of a support to a body |
20 |
|
• Fixing hairpin |
50 |
|
• Central nut |
65 |
|
Fixture of a back support of the power unit |
|
|
• Bolts of fastening of assembly of a support to the block |
45 |
|
• A bolt of fastening of an arm to a support |
50 |
|
• A bolt of fastening of an arm to a stretcher |
70 |
Removal and capital repairs of the engine
|
|
At the time of drawing up the present manual data on some engines were inaccessible. In case of lack of any parameters it is necessary to address for consultation to experts company service center of the Citroyon company. |
Head of cylinders
|
The maximum admissible not planeness the interfaced surfaces |
mm |
|
XU series engines |
0.05 |
|
XUD series engines |
0.07 |
|
Height of a head of cylinders |
mm |
|
XU series engines |
141.0 ± 0.05 |
|
XUD series engines |
235.0 ± 0.05 |
|
|
|
|
Size of a vystupaniye of vortex cameras (only diesel models), mm |
0 - 0.03 |
Valves
|
Diameter of plates |
mm |
|
Inlet |
|
|
- Petrol engines |
|
|
• 1580 cm 3 |
41.6 |
|
• 1761 cm 3 |
Data are absent |
|
• 1998 cm 3 |
42.6 |
|
- Diesel engines |
|
|
• 1905 cm 3 |
38.6 |
|
Final |
|
|
- Petrol engines |
|
|
• 1580 cm 3 |
34.7 |
|
• 1761 cm 3 |
Data are absent |
|
• 1998 cm 3 |
34.5 |
|
- Diesel engines |
|
|
• 1905 cm 3 |
33.0 |
|
Diameter of cores |
mm |
|
Inlet |
|
|
- Petrol engines |
|
|
• 1580 cm 3 |
7.83 - 7.98 |
|
• 1761 cm of 3 and 1998 cm 3 |
Data are absent |
|
- Diesel engines |
|
|
• 1905 cm 3 |
7.99 |
|
Final |
|
|
- Petrol engines |
|
|
• 1580 cm 3 |
7.83 - 7.98 |
|
• 1761 cm of 3 and 1998 cm 3 |
Data are absent |
|
- Diesel engines |
|
|
• 1905 cm 3 |
7.97 |
|
Total length |
mm |
|
Inlet |
|
|
- Petrol engines |
|
|
• 1580 cm 3 |
108.79 |
|
• 1761 cm of 3 and 1998 cm 3 |
Data are absent |
|
- Diesel engines |
|
|
• 1905 cm 3 |
112.40 |
|
Final |
|
|
- Petrol engines |
|
|
• 1580 cm 3 |
108.37 |
|
• 1761 cm of 3 and 1998 cm 3 |
Data are absent |
|
- Diesel engines |
|
|
• 1905 cm 3 |
111.85 |
Block of cylinders
|
Diameter of cylinders |
mm |
|
Petrol engines |
|
|
- 1580 cm of 3 and 1761 cm 3 |
|
|
• Dimensional group A |
83.000 - 83.010 |
|
• Dimensional group B |
83.010 - 83.020 |
|
• Dimensional group C |
83.020 - 83.030 |
|
- 1998 cm 3 |
Data are absent (face value of 86 mm) |
|
Diesel engines |
|
|
- Nominal rate |
83.000 - 83.018 |
|
- The repair size (with excess) R1 |
83.200 - 83.218 |
|
- The repair size (with excess) R2 |
83.500 - 83.518 |
|
- The repair size (with excess) R3 |
83.800 - 83.818 |
|
The size of a vystupaniye of sleeves of cylinders over the surface of the block of cylinders (the aluminum block) - only engines 1580 and 1761 of cm 3 |
mm |
|
Nominal rate |
0.03 - 0.10 |
|
The maximum admissible difference between two sleeves |
0.05 |
Pistons
|
Diameter |
mm |
|
Petrol engines |
|
|
- 1580 cm of 3 and 1761 cm 3 |
|
|
• Dimensional group A |
82.960 ± 0.007 |
|
• Dimensional group B |
82.970 ± 0.007 |
|
• Dimensional group C |
82.980 ± 0.007 |
|
- 1998 cm 3 |
Data are absent |
|
Diesel engines |
|
|
- Nominal rate |
82.930 - 82.939 |
|
- 1st repair size |
83.130 - 83.139 |
|
- 2nd repair size |
83.430 - 83.439 |
|
- 3rd repair size |
83.730 - 83.739 |
Rods
|
The maximum admissible weight difference between two conrod and piston assemblies |
|
|
Petrol engines |
|
|
- 1580 cm of 3 and 1761 cm 3 |
13.0 |
|
- 1998 cm 3 |
7.0 |
|
Diesel engines |
4.0 |
Bent shaft
|
|
|
|
Axial side play, mm |
0.07 - 0.32 |
|
Diameter of radical necks |
mm |
|
Petrol engines |
|
|
- 1580 cm 3 |
|
|
• Nominal rate |
59.981 - 60.000 |
|
• Repair value |
59.681 - 59.700 |
|
- 1791 cm of 3 and 1998 cm 3 |
Data are absent |
|
Diesel engines |
|
|
• Nominal rate |
60.0 +0, 60.0 - 0.019 |
|
• Repair value |
59.7 +0, 59.7 - 0.019 |
|
Diameter of conrod necks |
mm |
|
Petrol engines |
|
|
- 1580 cm 3 |
|
|
• Nominal rate |
49.984 - 50.000 |
|
• Repair value |
49.684 - 49.700 |
|
- 1791 cm of 3 and 1998 cm 3 |
Data are absent |
|
Diesel engines |
|
|
• Nominal rate |
50.0 +0, 50.0 - 0.019 |
|
• Repair value |
49.7 +0, 49.7 - 0.019 |
|
|
|
|
Maximum admissible ovality of necks (all models), mm |
0.007 |
|
Working gap in radical bearings |
mm |
|
Petrol engines * |
|
|
1580 cm of 3 and 1791 cm 3 |
0.025 - 0.050 |
|
1998 cm 3 |
0.038 - 0.069 |
|
Diesel engines **
|
0.025 - 0.050 |
|
• 1761 cm of 3 and 1998 cm 3 |
Data are absent |
|
|
|
|
Working gap in conrod bearings, mm |
0.025 - 0.050 |
* On engines of 1791 cm 3 since 1994 the nominal size of a gap is changed - see the text.
** The presumable data typical for engines of this kind are provided (address in service centers of the Citroyon company).
Piston rings
|
Gaps in locks |
mm |
|
Petrol engines |
|
|
- Top compression ring |
|
|
• 1580 cm 3 * |
0.4 - 0.6 |
|
• 1761 cm 3 * |
0.3 - 0.5 |
|
- Second compression ring |
|
|
• 1580 cm 3 |
0.15 - 0.35 |
|
• 1761 cm 3 * |
0.3 - 0.5 |
|
- Oil scraper ring |
|
|
• 1580 cm of 3 and 1761 cm 3 * |
0.3 - 0.5 |
|
• 1761 cm 3 * |
0.3 - 0.5 |
|
Diesel engines |
|
|
- Both compression rings |
0.20 - 0.40 |
|
- Oil scraper ring |
0.25 - 0.50 |
* The presumable data typical for engines of this kind are provided (address in service centers of the Citroyon company).
Efforts of tightening of threaded connections, Nanometer
|
- XU series engines (petrol) |
See above Specifications to the section the Repair procedures which are not demanding extraction of the engine from the car - petrol engines |
|
- XUD series engines (diesel) |
See above Specifications to the section the Repair procedures which are not demanding extraction of the engine from the car - diesel engines |