Wartsila Crankshaft Grinding on Ship

Product Description

The Wartsila Engine details are as follows.

Action taken by RA Power Solutions to Repair Crankshaft of Wartsila 12V32

i) RA Power Solutions deputed two technicians to Dubai with a portable crankshaft grinding machine and instruments to inspect and execute the repair of Wartsila Crankshaft 12V32.

ii) On inspection the crankpin no. 6 having a standard diameter of 270 mm was found to be seriously damaged.  

iii) On visual inspection it was observed that due to seizure of crankpin bearing the bearing material got embedded on the crank pin circumference. 

iv) The bearing material was carefully removed from the crankpin.

v) Due to the seizure of the bearing the radius fillet of both the ends was damaged. 

vi) The cracks were checked by MPI using high intensity Megnaflux torch. multiple hairline cracks were observed on damaged crankpin.

Action taken by RA Power Solutions to successfully repair of crankshaft of Wartsila 12V32

i) The above dimensional and inspection reports showed that the crankpin is seriously damaged as the radius fillet profile was also  lost due to the accident.

ii) The main challenge was that the vessel sailing schedule was fixed for Galle Sri Lanka and the repair of the crank pin was to be executed while sailing of the vessel from Jebel Ali Port Dubai to Galle Port Sri Lanka.

iii) The execution Plan was finalised in consultation with the chief engineer of the vessel and grinding was started while sailing of the vessel. 

iv) Due to the excessive damage of the crank pin and radius fillet of both ends our technicians have to undertake the grinding to the undersize of 2.0 mm.   

v) The radius fillet of both ends was also repaired while sailing of the vessel. 

vi) The final size of crank pin maintained after grinding was as following: 

      a) Minimum size of crankpin observed after grinding:     267.98 mm

      b) Maximum size of crankpin observed after grinding:    268.00 mm

The above dimensions show that the crankpin was undersized by 2.0mm, taper & ovality was maintained within 0.02 mm which is far better then the wartsila tolerance stipulated in manual.

RA Power Solutions have been extending crankshaft repair services even while sailingof  the vessel for the last 41 years.   

We have multiple teams of fully trained technicians who can travel to any site/ vessel all over the world in short notice. 

All our technicians have valid Indian CDC.