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In the oil filter and the oil pan of the engine are found in the larger particles of an alloy block or chip, shaft and bearing has been seriously damaged, must immediately stop the dismantling and repair, if continue to use will cause damage to more parts.
Reasons for the larger particles into the installation parts: no clean, metal scrap produced such as machining connecting rod bushing inner hole left in the connecting rod parts within the Tao, and oil channels are stuck in cutting or sediment, before the installation, cleaning is not thorough or with the movement of surface processing related machining burrs flanging was not cleared, install bearing when the sticky surface foreign bodies of larger particles or shaft to be bruised. These phenomena caused by the damage of bearing bush is very serious. So in the repair the installation carefully cleaning cleaning and inspection.
The lubrication effect and the cooling effect of inferior lubricating oil is not up to the requirement, the bearing and shaft wear intensifies, moving higher surface temperature alloy melting caused by bearing damage and more impurities, oil filter inferior lubricating oil was quickly blocked, lubricating oil containing impurities without a filter directly to the moving surface, further accelerated the damage shaft and bearing. So the purchase and replacement of lubricants must be in accordance with the provisions of the strict control of the quality of lubricating oil, according to the rules of selection of lubricating oil.