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DIY #measurement of #compression #pressure test in the cylinders of the cheapest running Audi A6C5 with a 4.2L V8 engine, which is equipped with a gas system. Is there anything to be afraid of when the car has a high mileage of over 370,000 km and gas installations?
To start the measurement, it is necessary to remove several elements, the intake, coils and disconnect the fuel pump. From the service documentation I have, the pressure measurement should be performed after the engine oil exceeds at least 30 degrees Celsius. We measure the compression after removing all the candles with the throttle open, i.e. the gas pedal pressed down to the stop.
I performed the pressure measurement with one of the cheaper instruments available at a popular auction site.
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