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en / 06.03.1997
BA000672
1/4
Exhaust gas temperatures
A comparison of the exhaust gas temperatures with the records of the acceptance test and the sea
trails is best suited to assess the thermodynamic performance of the engine and to analyse any de-
viations from the brand new condition of the engine (supercharging, injection, combustion). Injec-
tion pump or nozzle wear, for instance, will have direct effect on the thermal engine performance.
The influence of the prevailing air intake conditions on the engine data must be seen and taken into
account.
The
exhaust gas temperatures after the cylinders
may not be employed for an exact assessment of
the performance of each cylinder, because the exhaust temperatures of the individual cylinders read
by the thermometers are heavily influenced by the whirling effects in the exhaust collector pipe. Any
deviations among the cylinders within the scope of the values mentioned on the acceptance test re-
cords or below are perfectly normal despite balanced cylinder power figures of the various cylin-
ders. Such a measurement has therefore only a restricted meaningfulness, which may lead to false
conclusions.
Attention:
It is not permitted to alter the position of the fuel racks or the delivery data of a cylinder to
obtain the same temperature readings. This invalidates the balance of cylinder perfor-
mances.
Provided the fuel cam setting is correct, the fuel rack position of the injection pump is decisive for
balancing the cylinder power values.
The temperatures after cylinder, however, should not deviate more than
+/- 30 K
from the average
value in the acceptance test record
Check the temperature after the cylinder regularily.
If there are any deviations the cause must be found (e.g. nozzle, pump, exhaust valve), see
Содержание M20
Страница 5: ...Technical engine data A1 M20 M601C en 31 10 2001 AA000103 1 1 Technical engine data...
Страница 6: ...Governor data A1 04 en 18 02 2000 AA000097 1 1 Governor data not installed on CD Rom...
Страница 10: ...Acceptance Test Records A1 10 en 16 11 1999 AA000095 1 1 Acceptance test records not installed on CD Rom...
Страница 11: ...Operating instructions A3 M20 M601C en 31 10 2001 AA000108 1 1 Operating instructions...
Страница 30: ...Initial operation Engine A3 05 00 en 14 02 2001 BA000022 1 1 Initial operation...
Страница 44: ...Operational supervision Engine A3 06 00 en 15 02 2001 BA000058 1 1 Operational supervision...
Страница 64: ...Removal from operation Engine A3 07 00 en 16 02 2001 BA000094 1 1 Removal from operation...
Страница 71: ...Danger of frost Engine A3 08 00 en 16 02 2001 BA000106 1 1 Danger of frost...
Страница 83: ...Running in Engine A3 10 00 en 16 02 2001 BA000242 1 1 Running in...
Страница 85: ...Fault tracing Engine A3 11 00 en 19 02 2001 BA000130 1 1 Fault tracing...
Страница 91: ...Emergency operation Engine A3 12 00 en 19 02 2001 BA000142 1 1 Emergency operation...
Страница 102: ...Operating media A4 en 31 10 2001 AA020105 1 1 Operating media...
Страница 106: ...Regulations and care Engine A4 05 00 en 21 02 2001 BA000158 1 1 Regulations and care...
Страница 137: ...Maintenance A5 en 31 10 2001 AA000026 1 1 Maintenance...
Страница 166: ...Periodical schedule Heavy fuel A5 04 02 M20 en 31 10 2001 AA021679 8 8...
Страница 242: ...Bearing Shells Inspection Evaluate A5 05 02 03 07 01 M20 en 13 06 1997 IB001449 3 4 02 1 2 3...
Страница 243: ...Bearing Shells Inspection Evaluate A5 05 02 03 07 01 M20 en 13 06 1997 IB001449 4 4 02 4 5 6...
Страница 435: ...Table of contents A6 01 en 31 10 2001 AA020050 1 1 Tools A6 Table of contents A6 01...