Damaged Engine Block and Heavy Components Successfully Repaired

RA Power Solutions was advised about an accident with the auxiliary engine Yanmar 6M220L-SN by a Greece-based company that we have been serving for the last 45 years.

A Team of Two Technicians was sent on board the vessel, and the following main observation was made:

• Counterweight bolts sheared off, and the engine block got damaged by the counterweights.
• The impact was so high that multiple cracks were observed on both sides of the engine block, measuring more than 122 inches.

The scope of work included the following:

• Removal of a portion of the engine block having multiple cracks by cutting and replacing it with a new casting.
• Repair of cracks by metal stitching and metal locking
• Removal of counterweight bolts from the crank web.
• Grinding of 1 no. CR pin, which got damaged due to the hitting of counterweights.

Action taken by RA Power Solutions

• The entire damaged area of the engine block was metal stitched. The area of the multiple cracks was replaced by a new casting.
• The damaged counterweight bolts were removed, and re-tapping was done.
• Grinding of the crankpin was undertaken to a second step size of 0.8 mm.

The metal stitching and metal locking were done while the sailing of vessel was sailing. Even the grinding and polishing of the crankpin to the undersize of 0.8 mm was done while the vessel was moving.

The engine has been recommissioned and is operating satisfactorily.

RA Power Solutions is considered to be the most economical company. It undertaking the critical repairs on board the vessel in the minimum time.

For more details on damaged engine block repair, repair crack cast iron, engine block repair services, grinding and polishing of crankpin, and metal surgery of broken components, please email us at rajshahani@rapowersolutions.com, info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.