Crankshaft
The steel crankshaft is supported by five bearings.
| Axial play | 0.09 – 0.30 mm |
| Main journal diameters: | |
| – nominal size | 57,980 – 58,000 mm |
| – repair size -0.25 | 57,730 – 57,750 mm |
| – repair size -0.50 | 57,480 – 57,500 mm |
| – repair size -0.75 | 57.230 – 57.250 mm |
| Main bearing clearance* | 0.011 – 0.058 mm |
| Thickness of thrust half rings: | |
| – nominal size | 2.301 – 2.351 mm |
| - repair size | 2.491 – 2.541 mm |
| Connecting rod journal diameters: | |
| – 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 |
| – repair size -0.75 | 51.230 – 51.250 mm |
| Diameters of connecting rod journals, mm: | |
| – engines with a working volume of 1.1 dm³: | |
| nominal size | 42,990 – 43,010 mm |
| repair size -0.25 | 42,740 – 42,760 mm |
| repair size -0.50 | 42.490 – 42.510 mm |
| repair size -0.75 | 42.240 – 42.260 mm |
| repair size -1.0 | 41,990 – 42,010 mm |
| – engines with a working volume of 1.3 and 1.6 dm³ | |
| nominal size | 47,890 – 47,910 mm |
| repair size -0.25 | 47,640 – 47,660 mm |
| repair size -0.50 | 47.390 – 47.410 mm |
| repair size -0.75 | 47.140 – 47.160 mm |
| repair size -1.0 | 46.890 – 46.910 mm |
| Clearance in connecting rod bearings | 0.006 – 0.060 mm |
* Measurements should be taken using Plastigage measuring rods.
Connecting rods
The connecting rods are forged from steel and have an I-beam cross-section.
| Connecting rod head bore diameter | 20.589 – 20.609 mm |
| Connecting rod base bore diameter, mm: | |
| – engines with a working volume of 1.1 dm³ | 46,685 – 46,705 |
| – engines with a working volume of 1.3 and 1.6 dm³ | 50,890 – 50,910 |
| Inner diameters of connecting rod bearing holes, mm: | |
| – engines with a working volume of 1.1 dm³: | |
| • nominal size | 43,016 – 43,050 |
| • repair size -0.25 | 42,766 – 42,800 |
| • repair size -0.50 | 42,516 – 42,550 |
| • repair size -0.75 | 42,266 – 42,300 |
| • repair size -1.0 | 42,016 – 42,050 |
| – engines with a working volume of 1.3 and 1.6 dm³: | |
| • nominal size | 47,916 – 47,950 |
| • repair size -0.25 | 47,666 – 47,700 |
| • repair size -0.50 | 47,416 – 47,450 |
| • repair size -0.75 | 47,166 – 47,200 |
| • repair size -1.0 | 46,916 – 46,950 |
| Connecting rod bearing clearance* | 0.006 – 0.060 mm |
| Permissible non-perpendicularity of the hole axis relative to the connecting rod axis: | |
| - head hole | 0.10 mm |
| - base hole | 0.15 mm |
* Measurements should be taken using Plastigage measuring rods.
Pistons
Installation method: The arrow on the bottom of the piston should point towards the front of the engine (towards the timing drive).
| Piston diameter, mm: | |
| – engines with a working volume of 1.1 dm³: | |
| • nominal size 1 | 73,910 – 73,920 |
| • nominal size 2 | 73,920 – 73,930 |
| • nominal size 3 | 73,930 – 73,940 |
| • nominal size 4 | 73,940 – 73,950 |
| • nominal extended size | 73,930 – 73,955 |
| • increased by 0.29 mm | 74,210 – 74,355 |
| • increased by 0.5 mm | 74,460 – 74,885 |
| – engines with a working volume of 1.3 and 1.6 dm³: | |
| • nominal size 1 | 79,910 – 79,920 |
| • nominal size 2 | 79,920 – 79,930 |
| • nominal size 3 | 79,930 – 79,940 |
| • nominal size 4 | 79,940 – 79,950 |
| • nominal extended size | 79,930 – 79,955 |
| • increased by 0.5 mm | 80,210 – 80,235 |
| • increased by 1.0 mm | 80,430 – 80,455 |
| Piston clearance in cylinder: | |
| – nominal size | 0.020 – 0.040 mm |
| - nominal extended size | 0.010 – 0.045 mm |
Piston rings
Each piston has three rings: two sealing rings and one oil scraper ring.
| Clearance of the sealing ring lock (installed in the cylinder), mm: | |
| – engines with a working volume of 1.1 dm³ | 0,25 – 0,45 |
| – engines with a working volume of 1.3 and 1.6 dm³ | 0,20 – 0,40 |
| Oil scraper ring lock clearance, mm: | |
| – engines with a working volume of 1.1 dm³ | 0,30 – 0,50 |
| – engines with a working volume of 1.3 and 1.6 dm³ | 0,4 – 1,4 |
Piston pins
| Length, mm: | |
| – engines with a working volume of 1.1 dm³ | 63,0 – 63,8 |
| – engines with a working volume of 1.3 and 1.6 dm³ | 66,2 – 67,0 |
| Diameter, mm: | |
| - marked in white | 20,622 – 20,625 |
| - marked in red | 20,625 – 20,628 |
| - marked in blue | 20,628 – 20,631 |
| - marked in yellow | 20,631 – 20,634 |
| Piston hub clearance | 0.005 – 0.011 mm |
| Connecting rod tension | 0.013 – 0.045 mm |