Chery QQ Service Manual 465 Engine Mechanical System
- 20 –
Chery Automobile Co., Ltd
minutes.
2.4 Displace oil to state of guttate.
2.5 Cool the engine oil of displacement to 20 for 1 to 2 hours.
2.6 Measure oil amount after cooling with measuring graduated flask . Refill enough new
oil accordingly. You should subtract 0.25 litre fuel because the oil filter is not replaced.
2.7 These oil is enough for the driver to drive at least 500 km/350 miles. The driver should
keep his/her own normal route and driving style.
2.8 Repeat above-mentioned procedures from 1 to 4 afterwards, drainage time is the same.
2.9 Consumption amount of oil in graduated flask is oil consumption or mileage
consumption of engine.
3. Diagnosis and test of fuel pressure
The following conditions may cause low temperature of oil or oil without pressure. If oil
level is too low, fill the oil to the oil level of the indicator.
Oil pressure switch is not correct or the performance is not good. Please replace the
switch.
oil viscosity is not correct or oil being diluted
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Please use new oil with suitable viscosity according to estimated temperature.
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Please use new oil if the old one being diluted.
-
Oil pump wear or too dirty ,clean or replace the oil pump.
-
Oil filter is blocked. Please replace the oil filter.
-
There are some holes in the connecting rod oil dipper. Please replace the connecting
rod oil dipper.
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There are too much clearance between the bearings. Please replace the bearing.
-
There are some holes in the passage or the passage being blocked. Please repair or
replace the engine block.
- Oil groove plug lost or not properly installed. Please install or maintain it if
necessary.
- Pressure regulating valve is blocked. Please check the pressure regulating valve to
see whether or not it is blocked in the hole, check to see whether or not there are
some scores and fins in the hole.
- Valve guide wear. Repair if necessary.
Start the engine under the running temperature of more than 80 .
Take off the oil pressure switch.
Oil pressure test, see the arrows in screw hole.
Measure oil pressure 0.294-0.539 Mpa (3000 r/min)
Take off oil manometer and adaptor.
Install oil pressure switch properly.
Fill enough oil to maximum of oil gauge.
Notice:
Oil temperature is decided by corresponding engine load, the temperature can be
150 under extremely heavy load.