| 1. grindstone, needle files, or a scraper to remove burrs from the edges of the oil holes. |
| 2. Rinse the crankshaft solvent, and then dry thoroughly as possible using compressed air. Do not forget to clean the oil holes with a stiff brush. Then rinse them well with solvent. | When using compressed air do not forget to wear safety goggles! |
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3. Check the indigenous and crank pins for scoring, cavities, cracks and signs of uneven wear. 4. Inspect the entire surface of the shaft for cracks and other damage. To detect hidden cracks should resort to the magnetic particle inspection, - give a shaft in car-care center workshop. | 5. micrometer measure diameters of main and connecting rod shaft necks. Measure the diameter of the neck of each produce at several points along the length and circumference, which will estimate the value of its taper and roundness, which should not go beyond the permissible range (see. Specifications). It should also assess the value of the crankshaft run-out - take a couple of V-shaped blocks and measuring DTI. In the absence of the necessary equipment, contact professional help service centers. |
6. If wear / taper / oval necks exceeds the permissible value, or there are mechanical damage to the surfaces, the crankshaft should be given in the groove. After the groove of the shaft need to pick up new loose leaves of radical and / or the connecting rod bearing corresponding repair size. | 7. Check the gland necks on both journals of the crankshaft. Have developed grooves, burrs or scoring will exit the new seals of action in the very near future. In some cases, the pintle may be recovered by the bore and pressing onto them special thin-walled sleeves. If such regenerative repair is not possible, replace the shaft. |
8. Check the condition of loose leaves of radical bearings and rod (see. Section Check of a condition and selection of loose leaves radical and connecting rod bearings of the crankshaft). |