HIMSEN HYUNDAI 6H 17/28 Crankshaft

About HIMSEN HYUNDAI 6H 17/28 Crankshaft

Himsen Hyundai 6H17/28 crankshaft has been successfully repaired at MIP Mersin, Turkey. The vessel owned by an Italian company faced a major breakdown in one of their auxiliary engine, Himsen Hyundai 6H17/28.

RA Power Solutionswas approached and deputed our two technicians along with onsite crankshaft grinding equipment. The vessel was anchored at MIP Mersin, Turkey.

Following are the major Engine and Crankpin details:

S. No.	Engine and Crankpin Details
1.	Engine Make	HIMSEN HYUNDAI
2.	Engine Model	6H 17/28
3.	Crankpin Diameter Standard	175.00MM
4.	Crankpin Bearing Width	60.00 MM
5.	Place of Execution of Grinding of Crankpin	MIP Mersin, Turkey
6.	Name of Shipping Company	Reputed Company from Italy

HIMSEN HYUNDAI 6H 17/28 CR Pin Having Hairline Crack

Main Observations of Crankshaft of HIMSEN HYUNDAI 6H 17/28

i) On visual inspection, it was found that it was a case of lubricating oil pump failure, damaging the bearings of all connecting rods.

ii) The bearing material was found embedded on all six (6) crankpins and was carefully removed. After polishing the crankpins, the dimensional inspection was conducted. The taper, ovality ranging from 0.22 MM to 0.86 was observed.

CR Pin Hardness Inspection	CR Pin of HIMSEN HYUNDAI 6H 17/28 Before Repair

The Dimensional Inspection Report of Six (6) Number Crankpins of HIMSEN HYUNDAI 6H 17/28:

SIZE OF CR PINS BEFORE REPAIR
	A	Aa	C	Cc	B	Bb	Min	STD	Ovality
CR-1	174.74	174.85	174.62	174.73	174.66	174.88	174.62	175.00	0.38MM
CR-2	174.83	174.92	174.80	174.78	174.83	174.93	174.78	175.00	0.22MM
CR-3	174.70	174.90	174.55	174.69	174.48	174.54	174.48	175.00	0.52MM
CR-4	174.78	174.88	174.79	174.72	174.79	174.92	174.72	175.00	0.28MM
CR-5	174.78	174.88	174.76	174.92	174.72	174.78	174.72	175.00	0.28MM
CR-6	174.22	174.80	174.14	174.78	174.37	174.85	174.14	175.00	0.86MM

iii) The hardness was checked and was found within limits, except for a few spots, which were found not harmful to the crankshaft.

iv) The crankpins were subject to a MPI test for crack detection and minor hairline cracks were observed, All other parameters were found within the limit.

Crank Pin Before Repair	HIMSEN HYUNDAI 6H 17/28 After Grinding And Polishing

Action Taken By RA Power Solutions Technicians For Damaged Crankpins:

i) The grinding of all six (6) crankpins was undertaken by ourinsitu crankshaft grinding machine.

ii) Three (3) number of crankpins diameter was reduced by 1.00 MM and the final size was maintained as 174.00 MM.

iii) Three (3) number of crankpins diameter was reduced by 1.50 MM and the final size was maintained at 173.50 MM.

Final Report After Grinding is Pasted Below:

SIZE OF CR PINS AFTER REPAIR
	A	Aa	C	Cc	B	Bb	Min	U/S	Ovality
CR-1	173.48	173.49	173.49	173.48	173.50	173.50	173.48	173.50	0.02MM
CR-2	173.98	173.99	174.00	173.99	173.98	173.99	173.98	174.00	0.02MM
CR-3	173.49	173.50	173.50	173.48	173.49	173.50	173.48	173.50	0.02MM
CR-4	173.98	173.99	173.98	174.00	173.98	174.00	173.98	174.00	0.02MM
CR-5	173.99	173.99	173.98	174.00	173.98	173.99	173.98	174.00	0.02MM
CR-6	173.48	173.49	173.49	173.50	173.50	173.48	173.48	173.50	0.02MM

The tolerance of all six (6) number crankpins was maintained with 0.02 MM.

We have been regularly executing on site crankshaft repairs andIn Situ crankshaft grindingin Dubai, Fujairah, Qatar, Saudi Arabia, Oman, Iraq, Togo, Malta, Freetown, Egypt, Malaysia, Iran, Indonesia, Vietnam, Jordan, etc.

We have a team of trained technicians available 24/7 and can be deputed at short notice. Some of our technicians also have valid US VISA and can fly to South America, Caribbean countries, etc.

For more information regardingcrankshaft grinding services, please contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.

Precision Engineering for Marine Applications

Every HIMSEN HYUNDAI 6H 17/28 Crankshaft is manufactured to exacting standards using forged steel. With a dynamically balanced design and polished surface finish, it delivers durability and reliable operation in demanding marine environments. The crankshaft's compatibility with Hyundai HIMSEN 6H 17/28 engines ensures seamless engine performance and longevity.


Advanced Lubrication and Surface Finish

Featuring a central oil passage for lubrication, this crankshaft minimizes wear and heat build-up during operation. The refined, polished finish coupled with a hardness rating between 285-320 HB enhances resistance to fatigue and surface damage, making it an ideal choice for efficient, long-lasting engine functionality.