| Engine: disassembly and assembly |
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| If, during engine repairs, significant quantities of metal shavings and particles separated by abrasion or erosion due to friction damage, for example base plate bearings or the piston rod, are discovered in the oil, to avoid damage caused by this particularity, apart from a minute cleaning of the oil conduits, the oil radiator must be replaced. |
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| Defective injectors may result in a strong knocking noise from the engine and it may be assumed that there are damaged bearings. In case of a complaint, heat the engine by idling it and loosen one by one the injection tube connections. If the sound disappears when a connection is loosened, this means the corresponding injector is defective. |
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