![MAK M20 Operating Instructions Manual Download Page 89](http://html1.mh-extra.com/html/mak/m20/m20_operating-instructions-manual_3784461089.webp)
en / 08.07.1997
BA000727
3/4
Engine speed is not steady
Possible cause:
Remedy:
•
Too much clearance in the linkage between
governor and injection pump
•
Fuel line is sluggish
•
Friction in the injection pumps caused by
excessive fuel feed pressure
•
Injection pump plunger is temporarily
caught, is leaky or the spring is broken
•
Vibration damper is defective
Check the vibration damper
•
Rough drive owing to wear and tear or
damaged teeth
•
Governor failure
see manufacturer’s instructions in
Governor failures
______________________________________________________________________________________________
Opaque exhaust gas - engine is emitting soot
Possible cause:
Remedy:
Pressure of injection valve is too low
Nozzles are fouled by carbon deposits
Nozzle needle is jammed or nozzle is defective
Combustion air supply is insufficient
•
Air intake filter is clogged
•
Charge air cooler is fouled
•
Turbocharger is damaged
•
Turbocharger is fouled
•
Engine is retarded too far
Reduce fuel filling
•
Abgasgegendruck zu hoch, da freier
Exhaust gas back pressure is too high
because the exhaust ducting is clogged
•
Valves are leaky
For servicing the valves see,
•
Poor combustion due to very low load,
For increasing the load or change over to gas
especially at heavy fuel operation
oil operation see
______________________________________________________________________________________________
Summary of Contents for M20
Page 5: ...Technical engine data A1 M20 M601C en 31 10 2001 AA000103 1 1 Technical engine data...
Page 6: ...Governor data A1 04 en 18 02 2000 AA000097 1 1 Governor data not installed on CD Rom...
Page 11: ...Operating instructions A3 M20 M601C en 31 10 2001 AA000108 1 1 Operating instructions...
Page 30: ...Initial operation Engine A3 05 00 en 14 02 2001 BA000022 1 1 Initial operation...
Page 44: ...Operational supervision Engine A3 06 00 en 15 02 2001 BA000058 1 1 Operational supervision...
Page 64: ...Removal from operation Engine A3 07 00 en 16 02 2001 BA000094 1 1 Removal from operation...
Page 71: ...Danger of frost Engine A3 08 00 en 16 02 2001 BA000106 1 1 Danger of frost...
Page 83: ...Running in Engine A3 10 00 en 16 02 2001 BA000242 1 1 Running in...
Page 85: ...Fault tracing Engine A3 11 00 en 19 02 2001 BA000130 1 1 Fault tracing...
Page 91: ...Emergency operation Engine A3 12 00 en 19 02 2001 BA000142 1 1 Emergency operation...
Page 102: ...Operating media A4 en 31 10 2001 AA020105 1 1 Operating media...
Page 106: ...Regulations and care Engine A4 05 00 en 21 02 2001 BA000158 1 1 Regulations and care...
Page 137: ...Maintenance A5 en 31 10 2001 AA000026 1 1 Maintenance...
Page 166: ...Periodical schedule Heavy fuel A5 04 02 M20 en 31 10 2001 AA021679 8 8...
Page 242: ...Bearing Shells Inspection Evaluate A5 05 02 03 07 01 M20 en 13 06 1997 IB001449 3 4 02 1 2 3...
Page 243: ...Bearing Shells Inspection Evaluate A5 05 02 03 07 01 M20 en 13 06 1997 IB001449 4 4 02 4 5 6...
Page 435: ...Table of contents A6 01 en 31 10 2001 AA020050 1 1 Tools A6 Table of contents A6 01...