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Checking cylinder
After disassembly of the engine clean and rinse the cylinder block by soaking it in a bath of cleaning solution. Then wash it with a jet of the same solution under pressure to clean the oil channels. Blow dry and the engine block with compressed air, especially system of oil channels. Inspect the unit. If the crankshaft bearings or other places there are cracks, the unit must be replaced. On the surface of the cylinder should be no signs of wear, cracks, scratches, corrosion. Small scratches can be polished, in other cases it is necessary to chisel cylinders under the repair size.
A warning  Under oversize need to chisel all four cylinders, even if signs of wear, scratches and so on. D. There are only one cylinder.
After honing the bore to make the surface of the cylinder. Check the tightness of the cooling jacket. For this mute all holes in the block, except the one through which the compressed air is bring in the cooling jacket. Lower block into a bath of water and compressed air supply. Air leakage is not expected. Just check the oil channels. Check the clearance of the piston in the cylinder (see Fig. Subsection 2.2.1.12). Measure the diameter of the cylinder (see Fig. Subsection 2.2.1.12). The maximum allowable cylinder roundness of 0.04 mm. Permissible taper cylinder 0.15 mm. The conicity is calculated as the difference between the cylinder diameter at the bottom and at the top. If the taper more cylinders to chisel under repair size. Check with a ruler, and the flatness of the probe unit, which is installed cylinder head. Checks are carried out as well as on the head unit. Permissible flatness of 0.1 mm unit.
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