This is a collection of technical papers published by MAN Diesel & Turbo, Copenhagen/Holeby, Denmark, covering both MAN B&W two-stroke and MAN four-stroke diesel engines.

Our technical papers provide information on new engine developments and trends, service experience, important aspects of engine management and maintenance, and emissions requirements compliance and development, etc. 

If you are using Internet Explorer 8 or 9 and you are having problems opening the documents, please right-click the files to save them on your local drive. Or completely disable the ‘PDF in Browser’ setting in your Acrobat Reader.

  • Jan 06, 2017

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    Splash Guarding (Connections in the fuel oil and lubricating oil system)
    PDF, 245.35 KB
  • Jan 06, 2017

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    Fretting Marks on Connecting Rod Contact Surfaces
    PDF, 598.74 KB
  • Nov 30, 2016

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    Ridge Wear at Crankpin Journals
    PDF, 722.01 KB
  • Dec 07, 2016

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    Hard-Coated Piston Rings for Operation on Ultra-Low Sulphur Fuel Including gas and liquefied gas
    PDF, 1.49 MB
  • Dec 01, 2016

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    Alpha Lubricator - Service Experience
    PDF, 1.90 MB
  • Nov 11, 2016

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    Performance Test of the Pilot Operated Check Valves (POCVs) Updating of SL13-575/BTT
    PDF, 1.18 MB
  • Nov 09, 2016

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    Change-over to EAL in Propeller Servo Systems (Replacement of SL13-580/BTT)
    PDF, 184.60 KB
  • Nov 09, 2016

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    Temperature Range for Propeller
    PDF, 253.72 KB
  • Oct 09, 2016

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    Fuel Injection Valve Condition
    PDF, 1.23 MB
  • Oct 09, 2016

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    Tightening of Roller Guide Housing - GenSet
    PDF, 1.51 MB

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Unless otherwise stated, the copyright and any other rights in the contents of the Service Letters available through our website, including any images and text, are owned by MAN Diesel & Turbo.

For the avoidance of doubt, you must not adapt, edit, change, transform, publish, republish, distribute, redistribute or show in public the Service Letters (in any form or media) without the prior written consent of MAN Diesel & Turbo.

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2450 Copenhagen SV
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