1.2L REVOTRON ENGINE 46 III. Engine Oil Pressure Test : Description : If suspecting the oil pressure of being inadequate or a faulty oil pressure transducer, the pressure can be checked by removing the oil pressure transducer and connecting a gauge directly to the engine head. Procedure : 1. Park the vehicle on a flat surface and engage the parking brake. 2. Check that the oil level is at the 'MAX' mark on the engine oil dipstick. Add oil as necessary. 3. Verify that the right grade weight of oil is used. 4. Inspect the engine thoroughly for signs of external leaks through the cylinder head cover seal, crankshaft main seals, camshaft seal, oil sump gasket, oil pump sealant, oil sump drain plug, etc. Repair any external leaks. 5. Disconnect the oil pressure transducer, electrical connection. Remove the oil pressure transducer from the engine. 6. Install a pressure gauge in the oil pressure >transducer port. 7. Place the vehicle in neutral and start the engine. Allow the engine to warm up to normal operating temperature (approx.80°C). 8. Read the oil pressure indicated on the gauge at idle and at maximum engine speed. Engine Speed Pressure (Bar) Idle (at 1000rpm) >0.9 Maximum (Red line) (at 6000 rpm) >4 9. If the oil pump output is not at minimum pressure, the oil pump may be clogged or oil pump relief valve may be defective. If not, this may be an indication of excessive wear of the crankshaft journals and/or bearings and an engine overhaul may be considered. 10. After reading the oil pressure, stop the engine and remove the pressure gauge from the oil pressure transducer port. 11. Apply sealant on the screw threads and tighten the transducer to specified torque.
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