Compression Check
WM 101902 Performing compression pressure check on DFI engines
Test sheet
Test values =>
The compression values are heavily dependent on: Amount of deposits in combustion chamber, state of the combustion chamber seal (valves, piston rings, etc.), starter speed, engine temperature, engine mileage etc.
New, bar overpressure = 11.0 to 13.0
Wear limit, bar overpressure = 8.0
Maximum difference between the cylinders, bar overpressure (within one measurement) = 3.0