Daihatsu 8-DK32 Crankshaft repair on vessel | Crankshaft Grinding on site

Daihatsu 8-DK32 Crankshaft repair while sailing of the vessel

RA Power Solutions has recently successfully repaired the damaged crankshaft of Daihatsu 8-DK32.

The main specification of the crankshaft/ engine of Daihatsu 8-DK32 are as follows:

RA Power Solutions was contacted by our old client based in Athens Greece advising about a serious accident of Daihatsu 8-DK32 auxiliary engine on board a vessel. The vessel was sailing between Bahamas and Norfolk USA.

Our two technicians boarded the vessel at Bahamas Port and carried out the inspection.

The following are the main observations:

• Out of eight crankpins it was observed that the crankpin bearings of two crankpins were badly damaged due to seizure.

On the dimensional inspection of crankpin, the ovality of 1.23 mm and 0.70 mm was observed in crankpin no. 02 and crankpin no. 06 respectively.

• The hardness was observed within the limit with minor deviation.
• Cracks were checked by MPI equipment and no cracks were observed.
• Due to seizure of two crank pin bearings the deflection of the complete shaft was checked in order to know if any misalignment of the crankshaft has taken place.
• The deflection reading was observed within limits.
• The remaining crankpins were visually inspected and rough surface finish, and bearing line marks were observed. It was decided to polish them.
• The grinding of two damaged crank pins of Daihatsu 8-DK32 was undertaken. The crankpin no. 02 was undersized by 1.50 mm and crankpin no. 06 was undersized by 1.0 mm.
• The radius fillet which was damaged was also corrected by our technicians giving the profile as original.
• The complete job of inspection, grinding of two number of crank pins, polishing of remaining crankpins was successfully executed during the sailing of the vessel from Bahamas port to Norfolk port in the USA.
• The vessel was carrying undersize bearings of 1.0 mm and 1.5 mm and the engine was assembled in presence of our technicians. The performance of the engine was observed to be satisfactory.

We have a team of trained technicians available 24/7 hrs and can be deputed in short notice. Some of our technicians also have valid US VISA, CDC and can fly to South America, Caribbean countries, etc in short notice carrying on site crankshaft grinding equipment with them as accompanied baggage,

We have been regularly executing on site crankshaft repairs and crankshaft grinding in Dubai, Oman, Saudi Arabia, Qatar, Abu Dhabi, Sharjah, Ajman, Umm Al-Quwain, and Fujairah, Bahrain, Kuwait, Iraq, Antigua and Barbuda, Belize, Dominica, Dominican Republic, Grenada, Guyana, Haiti, Jamaica, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Trinidad, and Tobago, etc.

For more details on the crank pin grinding repair, please email us at rajshahani@rapowersolutions.com, info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.