Daihatsu 6DKM-36 Crankshaft Repair In Johor Bahru, Malaysia

About Daihatsu 6DKM-36 Crankshaft Repair In Johor Bahru, Malaysia

A Leading Company based in Singapore approached RA Power Solutions regarding the failure of the crankshaft of a Daihatsu 6DKM-36. The vessel was at the port of Johor Bahru, Malaysia. RA Power Solutions deputed two technicians along with an onsite crankshaft grinding machine to undertake the repair of the crankshaft of the Daihatsu 6DKM-36 on board the vessel at Johor Bahru, Malaysia.

The major crankshaft details of the Daihatsu 6DKM-36 are as follows:

S. No.	Crankpin Details
1	Engine Make	Daihatsu
2	Engine Model	6DKM-36
3	Crankpin Diameter Standard	325.00 MM
4	Crankpin Bearing Width	135.00 MM
5	Grinding of Crankpin Number	#03
6	Place of Execution of Grinding of Crankpin	Johor Bahru, Malaysia
7	Name of Shipping Company	Reputed Company from Singapore
8	Date Of Execution	27.04.2026 to 04.05.2026

Observation of The Crankshaft of Daihatsu 6DKM-36

i) On visual inspection, it was noted that the bearing of crankpin number 03 was damaged, and bearing material was accumulated in the sump.

ii) On opening the connecting rod, the bearing was found to be badly damaged. Crankpin number 03 was also embedded with bearing material.

iii) The bearing material was removed, and crankpin number 03 was inspected for dimensions (taper & ovality).

The following minimum and maximum dimensions were noted:

SIZE OF CR PINS BEFORE REPAIR
	A	Aa	C	Cc	B	Bb	Min	STD	Ovality
CR-1
CR-2
CR-3	324.96	324.81	324.98	324.85	324.93	324.78	324.78	325.00	0.22 MM
CR-4
CR-5
CR-6

iv) Due to high temperature and rubbing of the bearing on the crankpin, multiple scoring marks were observed.

Action Taken by RA Power Solutions for the Successful Repair of Daihatsu 6DKM-36 Crankshaft

The grinding of crankpin number 03 was started with an onsite crankshaft grinding machine. Initially, considering the ovality, it was estimated that the crankpin was to be undersized by 0.5 mm. However, on evaluation, it was decided to reduce the diameter of the crankpin further by 0.5 mm. The undersize of 1.00 mm was maintained.

The readings observed after grinding are pasted below:-

SIZE OF CR PINS AFTER REPAIR
	A	Aa	C	Cc	B	Bb	Min	STD	Ovality
CR-1
CR-2
CR-3	324.01	324.01	323.99	323.99	324.00	324.00	323.99	324.01	0.02 MM
CR-4
CR-5
CR-6

The ovality was maintained within 0.02 mm.

RA Power Solutions has been extending crankshaft repair services all over the world for 46 years of experience. We have successfully repaired and saved ten thousand (10000) crankshafts from rejection by using our experience. A few crankshafts have been repaired by us under deviation with the presence of cracks or undersizing beyond the last limit prescribed by the manufacturer.

For all repairs, including the above crankshaft of Daihatsu 6DKM-36, we provide records of the inspection report before and after the repair of the crankshaft. These reports are signed and stamped by the Chief Engineer of the vessel. On request, we can share these reports with our clients.

This case once again demonstrates RA Power Solutions capability to undertake critical crankshaft repairs worldwide with high accuracy, technical expertise, and proven field experience.

For more information on onsite crankshaft repair, grinding of crankshaft, and crankshaft polishing, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Comprehensive Crankshaft Restoration

Our crankshaft repair service addresses a wide range of issues, including misalignment, surface wear, and unevenness, through advanced grinding, polishing, and alignment processes. We cater to various marine and power plant engines, ensuring restored functionality and enhanced engine efficiency for Daihatsu 6DKM-36 crankshafts.


Advanced Precision Engineering

Operated with manual control and equipped with precision portable tools, our technicians achieve machining accuracy up to 0.01 mm. Hardened and ground slide ways, a 900 mm grinding wheel, and specialized equipment allow us to deliver high-quality surface finishes and extended crankshaft life.


24/7 Emergency Support & Certified Reliability

We provide round-the-clock service availability in Johor Bahru. As an ISO 9001:2015 certified provider, our repair solutions comply with stringent quality standards, offering confidence and reliability when emergencies strike and minimizing engine downtime.