1.2L REVOTRON ENGINE 69 2. Oil Filter : The oil filter used is a "Spin On Type" fitted. The main function of oil filter is to filter all contaminants 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. 3. Oil Strainer : The oil strainer is fitted to the oil pump along with O-ring, 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. 4. Oil Pressure Switch Sensor : Oil pressure switch sends the signal to low oil pressure indicator lamp provided on the vehicle instrument panel by closing the circuit to ground when the oil pressure is low / below the optimum value. 5. 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 accommodates 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 Engine, do not run for a long time; there are chances of valve train noise / tappet noise appearing when the engine is started.
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