RA Power Solutions was approached by a leading shipping company regarding a problem faced by them in the crankshaft of the Daihatsu 5DK-20 Auxiliary Engine. We offer expert services for the repair of the crankshaft of Daihatsu. Our skilled technicians use advanced techniques and precision machining to restore damaged crankshafts to their optimal condition.
Action Taken by RA Power Solutions to Repair of Crankshaft of Daihatsu 5DK-20 Engine
- Two technicians were deputed to Vizag Port Visakhapatnam along with necessary onsite grinding equipment.
Following are the Daihatsu 5DK-20 Engine and Crankshaft details:
The 5-number crankpin was inspected and the following are the main observations:
| S.No | Crankshaft Details | |
| 1 | Engine Make | Daihatsu |
| 2 | Engine Model | 5DK-20 |
| 3 | Crank pin Diameter Standard | 170.00 mm |
| 4 | Crankpin Bearing Width | 78.00 mm |
| 5 | Place of execution of crankshaft repair | Vizag Port Visakhapatnam |
Crankpin no. 1 was found damaged and the following minimum & maximum readings were observed.
- Minimum diameter observed: 169.75 mm
- Maximum diameter observed: 169.89 mm
Thus the total wear of the crankpin after the damage was 0.25 mm which is considered to be very much on the higher side as the standard diameter specified by the Daihatsu engine manufacturer in their maintenance manual is 169.97 mm.
- The deep bearing line marks were also observed on crankpin no.1 due to the seizure of the crankpin bearing.
- The remaining 4 crankpins’ diameter was observed within limits, in the case of crankpins no.2 and 5 the bearing line marks were observed.
- The hardness and crack detection by MPI was undertaken and all the parameters were observed within limits as per the Daihatsu engine manufacturer.
- The crankpin no.1 grinding was undertaken to the first step undersize of 0.5 mm. It was jointly inspected by the chief engineer and RA Power technicians.
- Since the deep bearings line marks were still present. It was decided to undertake the grinding to the next undersize of 1.0 mm.
- The crankpin was polished and after grinding & polishing the final size from 168.97 mm to 168.99 mm was maintained. The Crankpins no.2 and 5 were also polished. RA Power can maintain a surface finish of less than 20 Ra value.
| Damage of crankpin of Daihatsu Engine 5DK-20 | Deep Bearing line marks on the crank pin of Daihatsu Engine 5DK-20 |
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| Crack detection by MPI of Daihatsu Engine 5DK-20 crankshaft | Crack detection of crankpin Daihatsu Engine 5DK-20 by MPI |
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| Damaged crank pin of Daihatsu Engine 5DK-20 | Grinding of Daihatsu Engine 5DK-20 under progress |
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Successful Repair of Crankshaft of Daihatsu 5DK-20 Engine by RA Power Solutions:
The ship owners gave RA Power Solutions technicians only 18 hrs to execute the job and this was successfully done by working nonstop on board the vessel. RA Power Solutions has been extending engine repair services all over the world and specializes in grinding crankshafts up to 700 mm in diameter. We are extending our services all over the world with a guarantee and we are known for our sincerity and low prices.
| Crankpin of Daihatsu Engine 5DK-20 after Polishing | Crankpin of Daihatsu Engine 5DK-20 after grinding |
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We have been regularly executing the repairs in Madagascar, Oman, Qatar, Philippines, Bahrain, Srilanka, Bangladesh, Myanmar, Turkey, Nigeria, Greece, Saudi Arabia, UK, Dubai, Malta, Cyprus, Singapore, Malaysia, Colombia, Indonesia, Hong Kong, Spain, Netherlands, Dubai, Portugal, Estonia, Morocco, Belgium, Vietnam, Canada, Jordan, Libya, Kuwait, Egypt, Morocco, Yemen, Bahrain, Tunisia, Sudan, Oman, Algeria, UAE, Iraq, etc.
Telephone No.+91 9582647131