No need to open main bearings on Man Diesel Engines

Click to view SL2012-522 Main Bearing Inspection

Man Diesel now state clearly that bearing removal is not recommended as normal practice and therefore not recommended unless evidence based reason dictates.

This is a clear indication that best practice has shifted from a direct inspection methodology to a condition based approach.

This represents a shift in emphasis where the OEM clearly states that opening bearings without cause is likely to increase the risk of issue, either directly by the introduction of new sources of failure such as dirt or re-build issues, or by implication by reducing the support in terms of warrantee, where non recommended strip down may in the future invalidate terms.

Herein a video of the process for bearing removal courtesy of Marine Insight (Apologies for corrupted quality at the end! DS)

[youtube=http://www.youtube.com/watch?v=FRf2QgXmfSA&w=320&h=180]

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