Tag: bearings for daihatsu engine

Daihatsu 5DC-17 Undersize Bearings Availability and Crankshaft Repair

RA Power Solutions is proud to announce that we are saving the crankshaft of Daihatsu 5DC-17 from rejection by undertaking successful repair. As on date we have saved more than a hundred fifty crankshafts from rejection and have repaired them onsite without removing it from the engine block.

The Main Features of Repair of Daihatsu 5DC-17 Crankshaft by RA Power Solutions are as following:

  • RA Power Solutions is the only company in the world that can undertake grinding of Daihatsu 5DC-17 crankpins having a crankpin diameter of 145 mm and bearing length of only 64 mm which is considered to be very less for the placement of the on-site crankshaft grinding machine.
  • We have specially designed and dedicated onsite crankshaft grinding equipment which can be inserted from the engine block window to undertake the grinding of crankpins. No need for removing the crankshaft from the block & sending it to the workshop.
  • Damage to fillet radius is a serious issue with the crankshaft of Daihatsu 5DC-17. We undertake the repair of the fillet radius and do the grinding.
  • RA Power Solutions is the first and only company in the world that can undertake the grinding of crankshaft with a damaged fillet even while sailing the vessel.

Ready stock of Crankpin undersize Bearings

  • RA Power Solutions maintain a stock of undersize bearings which are required immediately after grinding. In most cases, we send our technicians along with the undersize bearing which facilitates immediate commissioning & operation of the engine after the grinding of crankshaft is done.
  • The Daihatsu 5DC-17 engine manufacturer recommends grinding of crankpin only up to 1.0 mm undersize. With our experience of more than 43 years in the repair of marine engine crankshafts, we have undersized the crankpins up to 3.0 mm and the engines are performing satisfactory.
  • The successful repair of the crankshaft has resulted in saving of huge amount for the owners of shipping companies.

Following Daihatsu 5DC-17 Bearings are Available and Ready in Stock.

  • Main Journal Bearings standard size.
  • Crankpin Bearings:
    • 0.5 mm undersize
    • 1.0 mm undersize
    • 1.5 mm undersize
    • 2.0 mm undersize
    • 2.5 mm undersize
    • 3.0 mm undersize

For your requirement of Repair of crankshaft of Daihatsu 5DC-17, bearings for Daihatsu engine and undersize crank pin bearings please contact RA Power Solutions or please Email us at rajshahani@rapowersolutions.com, info@rapowersolutions.com Call at +91 9582647131,+91 9810012383.

Daihatsu 6 DK-20 Crankshaft Repair | Onsite Grinding of Daihatsu Engine Crankshaft | Crankshaft Machining In Situ

RA Power Solutions was approached by a company based in Greece regarding a problem faced by them in their auxiliary engine of Daihatsu 6 DK-20.

It was reported that the bearing of crankpin no.3 got damaged.

THE ENGINE DETAILS OF DAIHATSU 6 DK-20 ENGINE ARE AS FOLLOWS:-

S. NO Crankshaft Details  
1 Engine Make Daihatsu
2 Engine Model 6 DK-20
3 Crankpin Diameter Standard 170 mm
4 Crankpin Bearing Width 78 mm
5 Name of Vessel MV ABBA


ACTION TAKEN BY RA POWER SOLUTIONS TO REPAIR THE CRANKSHAFT OF DAIHATSU 6 DK-20:-

  • Technicians on boarding the vessel inspected the crankshaft.
  • The hardness of crankpin no.3 was observed within limits between 210 to 240 HB scale.
  • After a thorough cleaning of crankpin No. 3, the MPI test was done and no cracks or abnormality was observed.
  • Crankpin no. 3 was subject to dimensional inspection.

FOLLOWING ARE THE MAIN OBSERVATIONS:-

a) Minimum diameter observed – 169.10 mm

b) Maximum diameter observed – 169.33 mm

c) Total ovality -0.40 mm

The crankshaft was already undersized to 169.50 mm against the standard size of 170.00 mm.

ACTION TAKEN BY RA POWER SOLUTIONS FOR REPAIR OF CRANKSHAFT OF DAIHATSU 6 DK-20:-

a) The minimum diameter observed after grinding – 168.98 mm

 b) Maximum diameter observed after grinding – 169.00 mm

 c)Total ovality observed after grinding – 0.02 mm

  • After grinding crankpin no. 3, the engine was assembled and put on trial.
  • We will be pleased to share the original pre and final machining inspection reports duly signed by the chief engineer of the vessel which has all the technical details required for the successful repair of the crankshaft.

REPAIR OF CRANKSHAFT OF DAIHATSU 6 DK-20 HAVING CRANKPIN BEARING WIDTH OF ONLY 78 MM:-

It was possible for RA Power Solutions to successfully undertake repair of the crankpin having a bearing width of only 78 mm because we have the equipment which can be placed on the crankpin or main journal diameter having a bearing width of as small as 40 mm.

With this advanced technology and process, no other crankshaft repair company has due to which they either reject the crankshaft or recommend getting it repaired from the workshop.

Crankpin of Daihatsu 6 DK-20 Engine Crankshaft before Repair
Crankpin of Daihatsu 6 DK-20 Engine Crankshaft before Repair
Magnetic Particle Test of Crankshaft of Daihatsu 6 DK-20 Engine
Magnetic Particle Test of Crankshaft of Daihatsu 6 DK-20 Engine
Repair of Crankshaft of Daihatsu 6 DK-20
Repair of Crankshaft of Daihatsu 6 DK-20
Crankshaft Grinding of Daihatsu 6 DK-20
Crankshaft Grinding of Daihatsu 6 DK-20

We have been regularly executing the repairs in Greece, Moldova, Belarus, Australia, Austria, Belgium, Brazil, Cambodia, Colombia, Denmark, Ethiopia, Ghana, Haiti, etc.

This blog is written by Mr. Raj Shahani (Managing Director of RA Power Solutions India Pvt. Ltd.) and a highly experienced business leader with rich experience of more than 40 years in the field of Power, Heavy, and Shipping industry. He is Technical Adviser to many shipping and heavy industries across the globe.

Mr. Shahani is one of the most enthusiastic professionals and he has all the brilliance of an exemplary leader. He is an extremely effective coach and mentor of teams and is adept at providing leadership in a global, cross-cultural environment.

For more information on bearings for Daihatsu engine and Daihatsu crankshaft repair contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.