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Main and connecting rod bearings - Check and selection
1. Indigenous and connecting rod bearings at engine major repairs must be replaced, but used ones bearings should be carefully checked to restore the general condition of the engine at the time of repair. 2. The reasons for the destruction of the crankshaft bearings are insufficient lubrication due to incorrect assembly (overlapping channels, a small gap), pollution and penetration of foreign particles (delayed replacement of oil and filter, there is a leak), frequent overloading the engine and corrosion (caused by frequent short trips) . Whatever the reason, caused destruction of bearings, it should be eliminated. 3. If the crankshaft will not pereshlifovyvatsya, you must choose the standard bearing size group (after rounding the necks are set only repair bearings). After selection check bearing clearances.
Figure 17.5a selection of indigenous inserts for 4-cylinder engines
| 17.5b insert group B is marked in blue 1. Group A 2. Group B 3. Marking
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| 17.5b Places of drawing rooms dimensional Group I of radical bearings on engines V6 1. Dimensional Bearing Group 1 st 2. The front part of the engine
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4. On 4-cylinder engines size group number is stamped on the main bearing plane under-Don (photo). 5. On 4-cylinder engines in the 2nd and 4th cervical installed liners in the group (if not pereshlifovyvalsya crankshaft). Group necks inserts 1,3 and 5 (A or B) stamped on the pallet (pictured).
| 3. Position of the room size group crankshaft journals (applied in the order of 7 th cervical to the 5th) 4. Places of drawing rooms of the indigenous liner
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Number liner | Room size group crankshaft journals | 0 | 1 | 2 | 0 | 0 | 1 | 2 | 1 | 1 | 2 | 3 | 2 | 2 | 3 | 4 |
17.5v code table for selection of indigenous inserts on engines K24
| 17.6a Place application group numbers guy supports necks on the engines V6 (from right to left), 1st pillar - front, 4th - behind.
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6. On engines V6 numbers must also determine the size groups liners and indigenous support, and then the sum of these numbers (or table) to determine the group of the insert (photo).
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