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The crankshaft of Himsen Hyundai 6H17/28 engine was successfully repaired at MIP Mersin, Turkey. The engine, owned by an Italian company, suffered a severe breakdown due to a failure in one of its auxiliary engines.
RA Power Solutions was contacted and promptly dispatched two experienced technicians along with onsite crankshaft grinding equipment. The vessel was anchored at MIP Mersin, Turkey, where the repair was carried out.

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

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

Key Observations of the Crankshaft:

Visual Inspection Findings:

1. The breakdown was caused by a lubricating oil pump failure, leading to damage to all connecting rod bearings.

2. Bearing material was embedded on all six crankpins and was carefully removed.

3. After polishing, a dimensional inspection showed taper and ovality ranging from 0.22 MM to 0.86 MM.

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	0.38 MM
CR-2	174.83	174.92	174.80	174.78	174.83	174.93	174.78	175.00	0.22 MM
CR-3	174.70	174.90	174.55	174.69	174.48	174.54	174.48	175.00	0.52 MM
CR-4	174.78	174.88	174.79	174.72	174.79	174.92	174.72	175.00	0.28 MM
CR-5	174.78	174.88	174.76	174.92	174.72	174.78	174.72	175.00	0.28 MM
CR-6	174.22	174.80	174.14	174.78	174.37	174.85	174.14	175.00	0.86 MM

4. Hardness testing revealed acceptable levels, with minor exceptions in a few spots, which were determined not to be harmful.

5. MPI testing for cracks showed minor hairline cracks, but all other parameters were within acceptable limits.

Actions Taken by RA Power Solutions Technicians:

1. The grinding of all six (6) crankpins was undertaken by our insitu crankshaft grinding machine.
2. Three (3) number of crankpins diameter was reduced by 1.00 MM and the final size was maintained as 174.00 MM.
3. 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 for all six crankpins was maintained within 0.02 MM.

**HIMSEN HYUNDAI 6H 17/28 After Grinding And Polishing**

Expertise and Availability:

RA Power Solutions specializes in onsite crankshaft repair and grinding services worldwide. We have successfully executed projects in Dubai, Fujairah, Qatar, Saudi Arabia, Oman, Iraq, Togo, Malta, Freetown, Egypt, Malaysia, Iran, Indonesia, Vietnam, Jordan, and other locations.

Our skilled technicians are available 24/7 and can be deployed on short notice. Many of our technicians also hold valid US visas, enabling us to offer services in South America, Caribbean countries, and beyond.

For more information about crankshaft grinding and repair services, please contact us:
Email: rajshahani@rapowersolutions.com or info@rapowersolutions.com
Phone: +91 9582647131 or +91 9810012383.

RA Power Solutions Pvt. Ltd. extends repair services for main and auxiliary engines, high-capacity compressors, pumps, and rotating equipment. We have the latest design portable equipment which is carried to the client’s site, whether they are land-based power plants or vessels on the move. The services are offered through trained technicians. Being an Indian company having more than 36 years of experience, we are well known for sincerity, on-time services, and the lowest price in this industry. A few of the services offered to us are as under:

Metal Locking and Metal Stitching

Metal locking and metal stitching is a cold process for repair of steel casting which develops cracks or gets broken into pieces due to overload, stress, or an accident. RA Power Solutions Pvt. Ltd. has experience of more than 44 years of undertaking repair of most complex accidental damage to plant and machinery, high capacity marine engines, diesel generating sets, engine blocks, cylinder heads, turbine casing, etc. The repair of casting by metal stitching and metal locking has been executed by trained and experienced engineers having experience of 44 years.

**Broken Engine Block of Yanmar Engine**

**Assembly of Broken Pieces of Engine Block**

**Engine Block Ready After Metal Stitching Process**

**Engine Block Ready After Metal Locking Process**

Consumables like metal locks and metal keys are procured from reputed companies based in the USA and UK. We are cost-effective and can depute our team of technicians within 6 hours notice.

**Material Used in Metal Locking and Metal Stitching Process**

We are experts in the repair of crankshafts of high-capacity marine engines up to 700 mm diameter, diesel generating sets, and other applications. The services are extended all over the world through our experienced technicians.

Rotor Shaft Grinding

In case of failure of the white metal rotor shaft bearing, it is necessary to inspect the rotor shaft bearing sitting diameter. We undertake complete inspection of the rotor shaft, grinding and polishing onsite. The rotor shaft repair, grinding, and polishing are done without dismantling the rotor shaft from the casing. The rotor shaft grinding and polishing are done onsite.

Rotor shaft white metal Babbitt bearings are manufactured and rebabbitting of old rotor shaft bearings is also undertaken. We guarantee the satisfactory performance of white metal Babbitt bearings.

Connecting Rod Repair

Connecting rod repair is undertaken with a guarantee, absolutely no need to replace the connecting rod as in most cases connecting rods can be repaired and re-used.

RA Power Solutions Pvt. Ltd. undertakes in-house repair of connecting rods including re-boring of the big ends and small ends, checking for hardness, cracks, etc.

**Connecting Rod Assembled with Piston After Repair**

Liner, Piston, Connecting Rod, Cylinder Head Under Assembly Supplied by RA Power Solutions — **Liner, Piston, Connecting Rod, and Cylinder Head Under Assembly Supplied by RA Power Solutions**

Connecting rods for all make and models of diesel engines like MAN-B&W, Sulzer, Wartsila, MAK, Deutz, Pielstick, Mitsubishi, Daihatsu, Yanmar, Bergen, Niigata, Himsen, Allen, Stork, Fiat, MWM, Hanshin, Caterpillar, SKL, Ruston, Paxman, Crepelle, Mirrlees, Alco, ABC, Nohab, etc.

Cylinder Heads

Cylinder Heads are reconditioned at our works. We replace valve seats, and valve guides and recondition the cylinder heads which are ready for installation. Repair of cylinder heads is undertaken by our experienced technicians in-house.

The repair of cracks on cylinder heads is done by metal stitching and a metal locking process, which is a cold and proven method of crack repair. Second-hand reconditioned cylinder heads are also supplied with a guarantee at a competitive price.

**Cylinder Head of Marine Diesel Engine**

Rebabbitting of Bearings

Rebabbitting of old white metal bearings of diesel engines, turbines, alternators, and all applications are undertaken. Rebabbitting of white metal bearings is done by a centrifugal process, which ensures dense and uniform bonding with the base steel.

We undertake rebabbitting of bearings up to 1500 mm in diameter. The white metal used for rebabbitting is imported from Spain. The metallurgical certificate for white metal and dimensional inspection report is submitted after rebabbitting of white metal is done. For more information on onsite crankshaft repair services, cylinder liners exporter, cylinder liners, engine cylinder liner, cylinder sleeve manufacturer, metal locking, repair of rotor shaft, and onsite repair services of crankshaft contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Category: onsite crankshaft repair services

Crankshaft Repair of HIMSEN HYUNDAI 6H 17/28 | Worldwide