NEXON

1.5L REVOTORQ ENGINE 84 The oil filter used is a “SPIN ON TYPE” fitted to the oil cooler. The main function of oil filter is to filter all contami- nants that get ingested into the engine, along with traces of worn out metals from bearings and other internal parts. The oil enters the oil filter under pressure through the holes on the perimeter of the base plate. The oil then passes through the filter element where it is "cleaned", and then flows to the central tube and back into the engine, oil gallery. C. Oil Strainer The oil strainer is fitted to the oil pump, through which the oil is drawn from oil sump and supplied to the oil gallery. The strainer acts like a filter and blocks the contaminants from entering the oil pump. D. Oil Cooler Oil cooler is heat exchanger which uses coolant to reduce the temperature of oil coming from the oil pump. It is mounted on the cylinder block with an adapter. E. Hydraulic Lash Adjuster (HLA) Hydraulic Lash Adjuster supports the pivot end of the rocker arm while automatically controlling the rocker arm position to keep it in contact with the camshafts and valve. The range of the hydraulic lash adjuster accommo- dates engine build tolerances; hence no adjustment is required during engine assembly. At all engine working conditions it maintains zero clearance between rollers rockers and valve stem. Maintenance Hydraulic lash adjuster uses Engine oil pressure for its operation. In case of a freshly assembled En- gine, do not run for a long time; there are chances of valve train noise appearing when the engine is started. HLA noise can be heard as repeated tappet like noise when engine is running at low idle speed. Following procedure is recommended to eliminate the noise.  Raise the Engine speed to 1000rpm without load (Vehicle stationary) to bleed the hydraulic chamber of HLA. The noise should disappear in15-30 seconds.  If the noise still persists, run the engine further under same condition (no load at 1000 RPM) for several minutes. The noise should disappear in 3 to 30 mins, in few cases.  In a very rare case if the noise is still heard, the HLA is stuck in compressed position and has to be replaced. NOTE There is no danger of damage to other components, if engine is run for few minutes on no load condition .