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The cylinder block and crankshaft
Cleaning | PERFORMANCE ORDER | | 1. Remove the cylinder block all hinged units and sensors. To clear the need to also get a stub. To do this, drill a small hole on the plugs into which screw on the screws - screws. The plugs are removed ticks for heads of screws or by means of a shock stripper. | | 2. Scrape all traces of gasket material from the cylinder block and main bearing caps the frame (in the engine in which the frame is provided), being careful not to damage the split sealing plane. | | 3. Remove all plugs oil channels (if available). These plugs have a very tight fit, so they may need drilling, followed by passage of the scan. When assembling the engine, replace all the plugs. | | 4. In case of severe contamination of the surface of the cylinder need steam cleaning. | | 5. After the steam treatment unit once again clean lubrication holes and channels. Wash all internal channels of the cylinder with warm water until no water comes out clean. Thoroughly dry the block and grease all split and polished surfaces with light oil to prevent rust. The drying process can be accelerated by blowing compressed air internal channels. | | 6. If the surface of the cylinder moderately polluted, we can restrict Wet cylinder with a stiff brush and hot water (temperature, eliminating the burns) with soap or detergent. Take your time and carefully wash the cylinder block. Regardless of the method of cleaning thoroughly rinse all internal oil passages, and dry well. Lubricate the cylinder walls with oil to prevent rust. |  | 7. Screw holes in the unit should be cleaned, which will provide accurate readings torque during assembly. Run tapping, as this will clean the threaded holes by dirt, corrosion and sealant residue and restore the thread. If possible, blow out the holes with compressed air to remove any residual material from the passage of a tap. |
A warning  Good results are obtained by injecting into the holes waterborne lubricant under high pressure, which are commercially available in long aerosol cans. When cleaning this way wear protective goggles.
| | 8. Set the engine block new plugs, pre-lubricated with a suitable sealant. | | 9. If the assembly of the engine is delayed, then cover with the cylinder block with plastic wrap to prevent the ingress of dirt and rust. Lubricate the sealing surface of the split that will protect them from corrosion. |
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Checking the Status | PERFORMANCE ORDER | | 1. Visually check for cracks in the cylinder block and corrosion. Check the condition of the threads in the holes, mark the location with stripped threads. If there were suspicions of a leak of coolant inside the engine block, the block should be tested for leaks, for which it is advisable to consult a specialist. At detection of defects and repair the unit (if applicable), or replace. | | 2. Check for chips and burrs on the inner surface of the cylinder. Check the collar at the top of the cylinder, the bead points to increased wear of the cylinder. | | 3. Check for chips and burrs on the inner surface of the cylinder. | | 4. Measure the inner cylinder diameter of 10 mm from the edge of the cylinder parallel and perpendicular to the motor axis. Repeat measurements at distances of 60 and 100 mm from the edge of the cylinder. The results of these six dimensions define the taper and ovality of the cylinder. |  | 5. The designations size groups of cylinders (indicated by arrows) stamped on a demountable plane of the block under the cylinder head gasket, near the cylinder. | | 6. Check the condition of the pistons and rings (see. Subsection 3.2.2.12). The clearance between the piston and the cylinder is defined as the difference between the measured diameter of the cylinder and the piston. | | 7. Compare the results with those in (see. Subsection 3.2.1.1). If any of the measured value is beyond the regulatory limits, the cylinder should be chiseled under the next repair diameter, and if it is not possible, the cylinder block must be replaced. To take the most appropriate next steps, consult a specialist. In spare parts pistons only one repair size - 0.2 mm. | | 8. If the condition of the piston and cylinder is satisfactory, and the wear is such that the clearance between the piston and the cylinder in the normal range, you only need to replace the piston rings. | | 9. In this case, the cylinders are exposed only honningovaniyu which provides better running-in of the piston rings and tight fit to the walls of the cylinder. | | 10. Honningovanie usually done with honningovalnoy head with spring-loaded with stones, which is inserted into an electric drill. It is also necessary to procure kerosene or oil honningovaniya and rags. During honningovaniya periodically move the tool up and down in the cylinder, the cylinder wall lubricating abundantly. | | 11. After honningovaniya on the surface of the cylinder wall has a structure of fine lines intersecting at an angle of about 60 ?�. Do not remove too much material honningovanie finish immediately after the finishing of the surface. If will be established new pistons, it should be borne in mind that the manufacturer of the pistons can be recommended for treatment of the cylinder walls with a slightly different angle of intersection of the lines. In this case, follow the instructions of the manufacturer of pistons. | | 12. Do not get out of the cylinder head honningovalnuyu during rotation - first complete stop. After carefully clean the oil from the cylinder. In the absence of tools for honningovaniya, or if you are not sure that will be able to qualitatively carry out this operation, please contact the shop where the cylinders othonninguyut for a modest fee. |
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