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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Nissan Sunny (from 1991 to 1997, the year of issue)

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Nissan Sunny
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Sunny
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The petrol engine of 1.4 and 1.6 liters
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Main and connecting rod bearings



Types of wear indigenous and connecting rod bearings

A. Scratches due to dirt
B. Insufficient lubrication, local wipe
C. Improper installation of bearings
F. fatigue wear
D. taper necks, wiping the coating with all the bearing surface along the length of the bearing
E. Education bead on the edge of the bearing

Check

PERFORMANCE ORDER
1. The previously used bearings should be stored at the place of installation for a thorough check, as traces of wear on these details allow you to restore the general condition of the engine. The bearing shells are divided into size groups in thickness, said color-coded.
2. The reasons for the destruction of the crankshaft bearings are poor lubrication, the presence of dirt and foreign particles, motor overload and corrosion. Whatever the reason, caused destruction of bearings, it should be removed before final assembly of the engine.
3. Remove the bearings from the cylinder liners and place on a clean surface in the order of their installation.
4. In order to prevent accelerated wear due to contaminants maintain cleanliness during engine assembly. In operation, it is recommended more frequent oil changes and filters.
5. In case of insufficient lubrication occurs coating material bearing wiped with a steel base bearing crumble from overheating (observed bluish tint).
6. When driving in severe engine mode (full throttle or at a low speed to a higher gear) is detached from the bearing cover steel substrate in the form of small particles, the bearings are subjected to fatigue wear.
7. Frequent travel for short distances can cause corrosive wear of bearings as because of insufficient warming do not have time to leave the condensed moisture.
8. Improper installation of bearings of the assembly also leads to premature wear. If the bearing clearance is less than the norm, then their lubrication is difficult, which leads to wear as due to the "oil starvation."
9. When assembling do not touch the surface of the insert.
10. Inserts main and connecting rod bearings at extensive repairs must be replaced.




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Installation and check of backlashes in connecting rod bearing
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