Considering the serious damage to the Auxiliary Engine MAN B&W 6L 16/24, a team of three (3) technicians was deputed, which consisted of a Senior Metal Stitching Engineer and Two (2) technicians to repair the crankshaft.

The vessel was boarded by our technicians in Pasir Gudang. Following are the main details of the engine:

Inspection of Crankshaft:

1. All the crankpins were inspected dimensionally, and line marks and ovality were observed on all the crankpins. The standard diameter of crankpin was 130.00 MM.
2. All other parameters, like hardness, and crack detection by MPI, were found within limits.
3. On visual inspection of the radius fillet of two (2) crankpins was found damaged.

Inspection of Engine Block

1. The Engine Block window seating area of Unit number #04 (Port Side) was found badly damaged.
2. The Cam Case was also found broken.

Few Photographs of the damaged Cam Case are given below:

Broken Camshaft Area of the Window	Damaged Window cover Sittting Area

Action Taken by RA Power Solutions to Repair of Crankshaft and Engine Block of MAN B&W 6L 16/24

i. Considering the damage, all six (6) crankpins diameter was reduced from 130.00 Mm to 129.50 MM, maintaining the tolerance of 0.02 MM.

A copy of the report indicating the final dimensions is pasted below:

ii. The broken engine block was repaired by Metal Stitching Process. The new pieces of casting were metal stitched as shown in the photographs.

Initial Cut Given in Engine Block Window Area	Fitment of New Casting in Damaged Area
MAN B&W Model No.6L 16/24 during metal lock	Metal locking of broken area of MAN B&W Model No.6L 16/24

iii) The Undersize bearings were also supplied by RA Power Solutions.

iv) The Engine was commissioned in the presence of our technicians and performance was found satisfactory.

Pasting of Casting by Metal Lock Process	Perfect Matching of Casting After Metal Locking

Cam Cover Area Metal Stitched

We have been regularly executing on site crankshaft repairs and In Situ Crankshaft Grinding in Dubai, Fujairah, Qatar, Saudi Arabia, Oman, Iraq, Togo, Malta, Freetown, Egypt, Malaysia, Iran, Indonesia, Vietnam, Jordan, etc.

For more details of the Damaged Engine Block by Metal Stitching Process, Onboard Crankshaft Repair Services, repair of crankshaft onsite, in situ crankshaft grinding and repair of MAN engine, onsite crankshaft grinding repair services, onsite crankshaft grinding and repair please email us at info@rapowersolutions.com or call +91 9582647131, or +91 9810012383.

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The major features of onsite crankshaft grinding repair services offered by RA Power Solutions are listed below.

• No compromise after grinding and repairing of crankshaft. All the parameters are strictly maintained as per the manufacturer’s specifications.
• The damaged radius fillet of the crankpin and main journals of the crankshaft is also repaired.
• With our latest crankshaft grinding equipment, grinding and repair of the crankpin, main journal, and crankshaft are possible in very little space.
• Repair of the crankshaft is possible while the vessel is sailing. This results in considerable savings.
• All the technical reports before and after grinding are submitted.
• In case of emergency breakdown, our technicians can travel to any part of the world with prior notice of 3 or 4 hours.
• We have skilled and experienced technicians who can save your crankshaft from rejection.
• With forty years of experience, we can do onsite grinding and repair jobs with precision.

Here are some other services:

RA Power Solutions stands to guarantee the work done by the technicians. We also offer diesel engine repair and overhauling, metal stitching, metal locking services, and rebabbitting of white metal bearings worldwide. We have separate experienced teams for each job, capable of undertaking repairs. All technicians hold valid Indian CDs and possess American visas, enabling them to travel to South America, the Caribbean, etc.

Please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383, if you have any questions or issues regarding the repair of the crankshaft of a main and auxiliary engine, grinding of crankshaft main journal, crankshaft grinding and polishing. 

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