Cummins Crankshaft Repair of QSK60-G4

About Cummins Crankshaft Repair of QSK60-G4

Cummins engine crankshaft of QSK60-G4 was damaged of a diesel generating set installed in a power plant on one of the islands in the Maldives.

The Cummins QSK60-G4 is a high-RPM engine with a compact design. The officials at the diesel power plant were informed about the damage to one of the crankpins.

The details are as follows:

S. No.	Crankpin Details
1	Engine Make	Cummins
2	Engine Model	QSK60-G4
3	Crankpin Diameter Standard	120.65 MM
4	Crankpin Bearing Width	52+52=104 MM
5	Grinding of Crankpin Number	#03
6	Place of Execution of Grinding of Crankpin	Addu City, Hithadhoo.
7	Name of Shipping Company	Reputed Company from Maldives
8	Date Of Execution	20.03.2026 to 01.04.2026

In order to execute onsite grinding of the damaged crankpin having a standard diameter of 120.65 mm, RA Power Solutions developed special tooling that is compact and capable of grinding the crankpin and main journal of the crankshaft. Two technicians, equipped with a compact, lightweight, dedicated crankshaft grinding machine, visited Addu City, Hithadhoo Island, Maldives.

The following job was carried out:

i) The complete inspection of damaged crankpin number 3 was undertaken to assess the damage. The minimum and maximum sizes observed are as follows:

• Maximum Diameter 120.65 mm
• Minimum Diameter 120.09 mm

The above shows an ovality of 0.56 mm, which is considered to be very high.

ii) The damaged crankpin number 3 was also subjected to MPI and hardness testing. Minor hairline marks were observed. The hardness observed was also on the higher side at a few scattered spots.

iii) The grinding of crankpin number 3 was undertaken using our specialized onsite crankshaft grinding equipment, and a final size of 119.63 mm was maintained.

RA Power Solutions can undertake onsite grinding of crankshafts having diameters as small as 80 mm. We can extend these services all over the world.

Bringing Your Cummins QSK60-G4 Crankshaft Back to Life | Fast & Reliable

The successful repair of the Cummins QSK60-G4 crankshaft shows how important it is to have specialists in situ machining for high-performance engines that work in distant places like island-based power plants. Cummins engines are recognized for being tough and well-made, but when they are damaged, such as when the crankpin is oval or the surface has flaws, they need help from experts with high-tech tools. RA Power Solutions made sure the crankshaft was put back in good operating order without taking the engine apart. This saved the client a lot of time and money.

Wherever Your Engine Is, You Can Trust Cummins Crankshaft Repair Solutions

RA Power Solutions has been fixing Cummins crankshafts for decades and has developed tried-and-true methods for grinding, inspecting, and restoring important engine parts on-site. Our staff provides reliable and affordable solutions around the world for Cummins diesel generators, marine engines, and heavy-duty equipment. Fixing the Cummins QSK60-G4 crankshaft in the Maldives demonstrates our skill, quick response, and dedication to keeping engines running well even in the toughest conditions.

Expert Repair for Heavy-Duty Performance

Our crankshaft repair services are ideal for Cummins QSK60-G4 engines and other large, heavy-duty applications. With advanced manual grinding and rebuilding techniques, we restore structural integrity and surface hardness, prolonging the working life of your engine. Each repair follows precise procedures tailored to your engine's specifications.


Comprehensive On-site and Workshop Flexibility

We bring our expertise directly to you or work in our fully-equipped workshop. Our team can repair crankshafts on-site for minimal downtime, or you can opt for in-house services for advanced diagnostics and reconditioning. Each service includes detailed inspections and reliable packaging for safe delivery.


Precision, Safety, and Durability Guaranteed

Our processes incorporate variable speed grinding up to 1800 RPM, ensuring optimal surface finishing and geometry. Custom magnetic chucks and grinding wheels accommodate each crankshaft's unique dimensions. All repairs are performed with safety protocols and rigorous quality checks, delivering durable, high-performance results.