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1.2L REVOTRON ENGINE
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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.