Crankshaft
The crankshaft is made of cast iron along with eight counterweights and is supported by five main bearings.
| Diameter of main journals | |
| Engine 1.6 dm3: | |
| - nominal | 57.970 - 57.990 mm |
| - repair -0.25 | 57.720 - 57.740 mm |
| Engine 1.8 dm3: | |
| - nominal | 53.970 - 53.990 mm |
| - repair -0.25 | 53.720 - 53.740 mm |
| - repair -0.50 | 53.470 - 53.490 mm |
| Diameter of connecting rod journals | |
| Nominal | 48.970 - 48.990 mm |
| Repair -0.25 | 48.720 - 48.740 mm |
| Repair -0.50 | 48.470 - 48.490 mm |
| Middle main bearing width | |
| Rated | 31.070 - 31.130 mm |
| Repair | 32.070 - 32.130 mm |
| Radial clearance of crankshaft main bearings | 0.015 - 0.062 mm |
| Axial clearance of the crankshaft | 0.090 - 0.370 mm |
| Maximum friction torque in the crankshaft main bearings (without piston-rod assembly installed) | 10 Nm |
Main bearing shells
Inserts are thin. Nominal and repair inserts are supplied as spare parts: reduced by 0.25 mm and 0.50 mm.
Connecting rods
Connecting rods are made with four distances between the axes of the holes of the head and the base to ensure one degree of compression in all engine cylinders. Notation "A", "IN", "WITH" And "D", applied on the side surface of the connecting rod caps, determine the selective group of the distance between the axes of the holes of the head and base.
Connecting rod installation method relative to cylinder block: letter "F", applied on the side surface of the connecting rod, must be located on the drive side of the gas distribution system.
| Connecting rod bearing socket hole diameter | 52.000 – 52.020 mm |
| Bore diameter in connecting rod head sleeve | 26.012 - 26.020 mm |
| The distance between the axes of the holes of the head and the base of the connecting rod: | |
| – 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 |
Connecting rod bearing shells
Thin wall liners. Nominal and repair inserts are supplied as spare parts: reduced by 0.25 mm and 0.50 mm.
Pistons
Light alloy pistons with a cast steel insert are used.
| Piston diameters (measured at right angles to the axis of the piston pin) | |
| Engine 1.6 dm3: | |
| – group A | 79.96 - 79.97 mm |
| – group B | 79.97 - 79.99 mm |
| – group C | 80.12 - 80.14 mm |
| – group D | 80.14 - 80.15 mm |
| – Group E | 80.46 - 80.48 mm |
| – group F | 80.96 - 80.98 mm |
| Engine 1.8 dm: | |
| - nominal: | |
| • group A | 82.460 - 82.475 mm |
| • group B | 82.475 - 82.490 mm |
| • group C | 82.620 - 82.635 mm |
| • group D | 82.635 – 82.650 mm |
| - repair: | |
| • Group E (+0.5 mm) | 82.961 - 82.979 mm |
| • group F (+1.0 mm) | 83.461 - 83.479 mm |
| Piston clearance in cylinder | |
| Groups A to D | 0.025 - 0.055 mm |
| Groups E and F | 0.021 - 0.054 mm |
| Protrusion at TDC of the piston bottom above the upper plane of the cylinder block | |
| 1.6L engine | 0.430 - 0.860 mm |
| 1.8L engine | 0.500 - 0.840 mm |
Piston pins
The pin rotates in the piston and connecting rod head bushing (the so-called floating finger) and secured against longitudinal movement by two spring retaining rings.
Installation of circlips in the piston groove: cut upwards.
Pin outer diameter: 25.996–26.000 mm.
Piston rings
Each piston has three rings: two sealing and one oil scraper.
Installation Method: Lettering "Top" (top) directed towards the bottom of the piston.
| Castle Width (incision) ring located in the cylinder | |
| Engine 1.6 dm3: | |
| - top ring (sealing) | 0.30 - 0.50 mm |
| - middle ring (sealing) | 0.30 - 0.50 mm |
| - bottom ring (oil scraper) | 0.20 - 0.45 mm |
| Engine 1.8 dm3: | |
| - top ring (sealing) | 0.30 - 0.50 mm |
| - middle ring (sealing) | 0.35 - 0.45 mm |
| - bottom ring (oil scraper) | 0.25 - 0.45 mm |
| Piston groove clearance | |
| Engine 1.6 dm3: | |
| - top ring (sealing) | 0.070 - 0.102 mm |
| - middle ring (sealing) | 0.050 - 0.082 mm |
| - bottom ring (oil scraper) | 0.030 - 0.065 mm |
| Engine 1.8 dm3: | |
| - top ring (sealing) | 0.090 - 0.122 mm |
| - middle ring (sealing) | 0.050 - 0.082 mm |
| - bottom ring (oil scraper) | 0.030 - 0.065 mm |
Flywheel
| Radial beats | 0.13mm |
| Number of crown teeth | 135 |
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