| 1. Carefully check a bent shaft for existence of damages and perform exact measurements of necks of radical and conrod bearings. Necks of radical bearings and conrod necks can be chiseled to three times so it is possible to establish a shaft with inserts of bearings of the repair (smaller) size. Diameter of conrod necks is identical to all types of engines. |
| 2. Clamp a bent shaft between centers of the lathe (or put necks of bearings in prisms) and by means of the arrow indicator measure beats on an average neck. Beats should not exceed the size of 0.06 mm. Otherwise the shaft should be replaced. |
| 3. Measure gaps in radical and conrod bearings. |
| 4. Well clear inserts of bearings and put them in beds of bearings of the block of cylinders or in rods. |
| 5. Put on a piece of the material "Plastigage" (plastic "wire") on a neck of each radical bearing and on a cover of each radical bearing with the enclosed inserts. Tighten bolts the moment of an inhaling of 65 Nanometers. After that do not turn a shaft. |
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6. For check of gaps of conrod bearings it is necessary to put a rod to a conrod neck and put a piece of "Plastigage" on the top part of a conrod neck (shooter). Put a bearing cover with an insert and tighten nuts the moment of an inhaling of 30 Nanometers. As it is impossible to turn a shaft more, measurements are taken on two conrod bearings which are in NMT. |
| 7. Turn off covers on radical bearings, on conrod bearings turn off both covers in turn. |
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8. By means of the measuring ruler which is included in the package of "Plastigage" measure the crushed material strips in the widest place. If this size exceeds 0.17 mm for radical bearings, it is necessary to replace covers of bearings new, and it must be kept in mind whether necks were ground earlier. |
| 9. For check of gaps of other bearings it is necessary to check a bent shaft and to perform measurements on two other conrod bearings. If there is no Plastigage set, but you can use an arrow nutromer, it is possible to perform measurements of gaps of radical and conrod bearings in the described below way. |
| 10. Install covers of bearings with the enclosed inserts according to numbers of bearings on the block of cylinders and tighten bolts the moment of an inhaling of 65 Nanometers. It is necessary to pay by all means attention to that inserts got on the former places. If gaps of conrod bearings are measured, it is necessary to enclose inserts in rods and in covers and to tighten covers former nuts, having tightened their moment 30 Nanometers. |
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11. Measure internal diameters of bearings. At the same time it is necessary to observe the direction of measurements And yes In and places of measurements 1 and 2. At the same time it is possible to define a deviation from a circle (And yes In) and the size of conicity (1 and 2). Write down the received results for each bearing. |
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12. Measure one after another diameters of all necks of bearings by means of a micrometer. At the same time besides you perform measurements in certain places which are designated by shooters. Write down results of measurements for all necks of bearings. |
| 13. Subtract results of measurements for diameters of bearings from results of measurements for internal diameters. The result will represent a gap in the bearing (radical or conrod) and has to correspond to the size specified in Specifications. |