Bergen Rolls Royce Crankshaft repair | Rolls Royce Engine Crankshaft Grinding | RA Power Solutions

by RAPower Solutions RA Power
RA Power Solutions was approached by one of our old client to undertake repair of Bergen Rolls Royce Engine Model no. B32:40 L8P crankshaft. 

The Bergen Rolls Royce engine and crankshaft have following major specifications:

    S. NO

 Crankshaft Details



 Engine Make

Bergen Rolls Royce


Engine Model

Model no. B32:40 L8P


Crank pin Diameter Standard

270 mm


Crankpin Bearing Width

115 mm

Inspection of  Rolls Royce Engine Crankshaft undertaken by RA Power Solutions technicians  

 RA Power Solutions technicians boarded the vessel at JNPT Port, Mumbai India and undertook the inspection of the crankshaft.

 Following was the main observation:

 i) On visual inspection it was observed that crankpin bearing of CR no. 3  was damaged and bearing material was found in the sump.

 ii) On removal of the connecting rod it was observed the connecting rod bearing was badly struck on the crankpin and even the bearing material was embedded in crankpin diameter. 

 iii) After removal of bearing material from crankpin circumference the inspection of crankpin was undertaken. 

iv) The crankpin dimension was observed as follows:

  a) Minimum diameter observed 269.43 mm.

  b) Maximum diameter observed 269.89 mm.

v) The hardness was checked and was observed within the limit.  

vi) The crack detection of Rolls Royce Engine crank pin was conducted by MPI method and no crack or abnormality was observed.

vii) On visual inspection of crank pin deep bearing line marks were observed. 

Action taken by RA Power Solutions to repair the crankshaft of Bergen Rolls Royce Engine.

i) The Grinding of crankpin no. 3 was undertaken to the step size of 1 mm. The final size after grinding was maintained as 269.00 mm. 

ii) After final grinding/ Polishing of crankpin all the parameters like taper, ovality, hardness, crack detection and surface test were undertaken and report on our standard format was prepared.  

iii) The remaining crank pins were polished as rough surfaces and bearing line marks were observed.All  crank pins were subject to the surface finish test and surface finish of 11 Ra value was observed which is far better then the International standards.

iv) The connecting rod was inspected by our technicians and the Rolls Royce Engine after repair was put on load and satisfactory performance was observed. 

RA Power Solutions have been undertaking repair of Bergen Rolls Royce Engine and all popular make of engines crankshaft  for the last 41 years. 

We have been regularly executing the repairs in Argentina, Bahamas, Barbados, Bermuda, Bolivia, Brazil, Canada, Chile, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Jamaica, Mexico, Nicaragua etc.

This blog is written by Mr. Raj Shahani (Managing Director of RA Power Solutions India Pvt. Ltd.).

Mr. Shahani is a highly experienced business leader with rich experience of more than 41 years in the field of Power, Heavy and Shipping industry. He is Technical Adviser to many shipping and heavy industries across the globe.

Mr. Shahani is one of the most enthusiastic professional and he has all the brilliance of an exemplary leader. Mr. Shahani is an extremely effective coach and mentor of teams and is adept at providing leadership in a global, cross-cultural environment.

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Created on Jun 19th 2021 04:48. Viewed 434 times.


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