onsite crankshaft grinding Archives - Insitu Crankshaft Grinding

Common Causes of Crankshaft Breakdown in Marine Engines

In Situ Crankshaft — Wed, 15 Apr 2026 06:34:03 +0000

Marine engines face some of the most rigorous conditions, such as continuous operation, heavy loads, and exposure to harsh marine environments. The crankshaft, a critical component that converts reciprocating motion into rotational energy, is located at the heart of these engines. Crankshafts are highly susceptible to wear and damage over time as a result of constant stress and operational challenges.

It is imperative for ship owners, operators, and maintenance teams to understand the common causes of crankshaft damage in marine engines. The early detection of these issues not only prevents serious failures but also reduces repair costs and downtime.

The primary causes of crankshaft damage are as follows:

1. Lack of Lubrication

Protecting the crankshaft and its journals from excessive friction and heat is a critical function of lubrication. The oil film degrades when lubrication is inadequate or damaged, resulting in direct metal-to-metal contact. This leads to the crankshaft surface experiencing accelerated wear, scoring, and overheating.

Critical Concerns

Inconsistent or inadequate oil pressure
Lubricating oil that has been contaminated
Replacement of oil with a delay

2. Engine Overloading and High RPM

The crankshaft is subjected to excessive stress when marine engines are operated beyond their recommended limits. Fatigue cracks, distortion, and even sudden crankshaft failure can result from continuous overloading or high RPM usage.

Common Causes

Overloading of cargo
Mishandling of the engine
Extended periods of high-speed operation

3. Fuel Quality Issues

The quality of the fuel directly influences both the health of the crankshaft and overall engine performance. In particular, contaminated or low-grade fuel causes incomplete combustion; as a result, it leads to carbon deposits and creates irregular pressure on engine components.

Consequences

Enhanced engine vibration
Unbalanced load distribution
Increased wear rate on the crankshaft

Crankshaft Grinding Machine In Use

In situ crankshaft repair and grinding

4. Engine Component Misalignment

Misalignment is a serious issue that can result from improper installation, foundation defects, or hull deformation. Even slight misalignment causes uneven loading on crankshaft journals; consequently, it leads to abnormal wear and long-term damage.

The Impacts

Journal wear that is inconsistent
Enhanced friction
Crankshaft cracking risk

5. Bearing Failure

Bearings support the crankshaft and ensure smooth rotation. When wear, contamination, or incorrect clearances cause bearing failure, they directly damage the crankshaft surface.

Causes

Oil contamination
Improper installation
Over time, fatigue develops.

6. Moisture and Corrosion Exposure

Marine environments expose engine components to corrosive conditions, humidity, and saltwater. When moisture enters the lubrication system, it causes rust, pitting, and weakens the crankshaft structure.

Risk Factors

Inadequate sealing mechanisms
Maintenance that is inconsistent
Exposure to seawater

7. Imbalance and Excessive Vibration

Vibration often signals engine malfunctions. Continuous imbalance in rotating parts subjects the crankshaft to cyclic stress, eventually leading to fatigue cracks and failure.

Sources

Rotating components that are unbalanced
Engine components that are not securely fastened
Inaccurate alignment

8. Inadequate Preventive Maintenance

One of the most prevalent causes of crankshaft damage is the neglect of routine maintenance. If not promptly resolved, minor vibrations or unusual noises can develop into severe complications.

Common Mistakes

Disregarding early warning indicators
Skipping routine inspections
Servicing that is delayed

In situ crankshaft repair services

Crankshaft Repair and Grinding

Crankshaft damage in marine engines often results from multiple interconnected factors; however, many of these can be prevented through proper maintenance and monitoring. By understanding these causes, operators can take proactive measures to enhance engine performance, extend service

In cases where damage has already occurred, advanced solutions, including in-situ crankshaft grinding, polishing, and onsite crankshaft repair services, offer a cost-effective and efficient alternative to dismantling. These methods suit marine vessels and power plants operating on strict schedules, as they minimize downtime and restore the crankshaft to its original condition.

With extensive experience in marine and power plant engineering, R A Power Solutions specializes in crankshaft repair, inspection, and in-situ machining services across the Gulf region, including UAE, Saudi Arabia, Qatar, Oman, and Kuwait. Moreover, our team is equipped with advanced portable equipment and precision instruments to carry out detailed crankshaft inspection, fault diagnosis, and onsite repair without the need for dismantling. We have successfully handled complex crankshaft damage cases onboard vessels and at power plants, delivering accurate measurements, alignment checks, and high-quality grinding and polishing services. Our strong presence in major Gulf ports ensures fast mobilization, minimal downtime, and reliable solutions tailored to demanding marine conditions. This combination of technical expertise, rapid response, and proven performance makes us a trusted partner for crankshaft repair and inspection services throughout the Middle East.

For any requirement related to crankshaft grinding, in situ crankshaft grinding, onsite crankpin polishing, damaged engine repair, or global crankpin repair services, feel free to reach out to us at:
Please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

The post Common Causes of Crankshaft Breakdown in Marine Engines appeared first on Insitu Crankshaft Grinding.

Insitu Crankshaft Grinding Services In Brazil

In Situ Crankshaft — Thu, 05 Mar 2026 08:32:10 +0000

R A Power Solutions offers in situ crankshaft grinding services in Brazil and at key surrounding ports to help maritime vessels, offshore facilities, and power production units. We help ship owners cut down on downtime, avoid costly disassembly, and get their engines back to full power right at the port. We have over 4 decades of experience repairing crankshafts on site around the world.
Our skilled technicians use innovative portable crankshaft grinding machines to make precise repairs without having to take the crankshaft out of the engine block.

Step-by-Step Guide to the Insitu Crankshaft Grinding Process

The in situ crankshaft grinding operation is performed on the engine without removing the crankshaft. This means that there is less downtime and more accuracy. Here is a full, step-by-step guide on how to do the procedure:

Crankpin Hardness Testing Before Repairs

Hardness test of Crankpin

MPI Inspection of Crankpin

Magnetic Particle Inspection Test

1. First Look and Damage Check

Our professionals start by carefully checking the crankshaft for problems, including ovality, taper, scoring marks, damage from bearing failure, or cracks in the surface. To find out how much wear there is, visual exams and measurements of dimensions are done.

2. Final Inspection of Dimensions and Documentation

After grinding, measurements are taken, and a full inspection report is made. Before putting everything back together, the bearing clearances are checked.

3. Testing for hardness and cracks

Before grinding, the crankshaft’s structural integrity is checked by hardness testing and crack identification (MPI or dye penetrant test).

4. Check for Alignment and Run-Out

We inspect the crankshaft alignment and measure the run-out to make sure the shaft is within acceptable limits. Before moving on, any misalignment is thoroughly looked at.

5. Setting up the portable grinding machine

The engine block has a portable crankshaft grinding equipment that was made just for this purpose. The arrangement makes sure that the grinding process is stable and that the control is exact.

6. Grinding Operation Under Control

Grinding is done slowly, taking out only a small amount of material and bringing the crankpin or journal back to the right undersize according to OEM standards. Continuous measurement makes sure that the dimensions are correct.

7. Getting the Right Shape

We get rid of ovality and taper, bringing back the right roundness and surface smoothness. The final surface roughness stays within the specified range for the best performance of the bearings.

8. Finishing and Polishing

Polishing comes after grinding to make the surface smooth, which increases the life of the bearings and the efficiency of the lubrication.

This step-by-step method makes sure that the crankshaft is brought back to exact operational standards while the ship is still in port. This makes insitu crankshaft grinding a reliable and cost-effective way to fix marine engines.

Onsite Crankpin After Grinding

Grinding of Crankpin by Onsite Crankshaft Grinders on Vessel

Insitu Crankpin After Grinding

Insitu Crankpin After Grinding and Polishing

The main Brazilian ports where we offer services

We actively serve ships and industrial clients at major Brazilian maritime hubs, including the Port of Santos, Port of Rio de Janeiro, Port of Paranaguá, Port of Suape, and the Port of Itajaí.

In addition to our strong presence across Brazil, we extend our in situ crankshaft grinding and marine engine repair services to nearby international ports throughout South America, including Argentina, Uruguay, Chile, Colombia, and Peru. With this wide regional coverage, we are able to respond quickly to emergency breakdowns as well as planned maintenance requirements across South America, ensuring minimal downtime and reliable technical support wherever your vessel is operating.

Our Most Important Services in Brazil

We offer full crankshaft repair services on site, which include:

Grinding the crankshaft in place
Fixing and polishing the crankpin
Grinding the main journal
Checks for crankshaft alignment
Fixing damage to the bearing
Fixing cracks and sewing metal
Help with overhauling engines

All work is done to OEM standards, which guarantee that the dimensions are correct and that the work will last for a long time.

Why Ship Owners in Brazil Choose Us

You don’t have to take off the crankshaft.
Less time spent on the ship
A lot less money spent than replacing it
Quick movement to big ports
Engine repair engineers have a lot of experience
Our goal is simple: while your boat is at port, we want to get your crankshaft back to its best condition.

Brazil’s Most Trusted Insitu Crankshaft Grinding

R A Power Solutions is still a solid partner for marine engine maintenance and crankshaft grinding because they cover a lot of ground at key Brazilian ports and surrounding South American destinations.
If your ship needs urgent crankshaft repair while it is docked in Brazil or a neighboring port, our team is ready to go with the right tools and technical knowledge to provide quick solutions on site.

If your vessel requires urgent crankshaft repair in Brazil, expert onsite support is just one call away.

Please email us at rajshahani@rapowersolutions.com, info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

FAQs

1. What is the maximum diameter crankshaft you can grind onsite?

We can handle large marine crankshafts used in MAN, Wartsila, MAK, and other major engine brands.

2. How long does insitu crankshaft grinding take?

Most repairs are completed within 24–72 hours, depending on damage severity.

3. Is onsite crankshaft grinding reliable?

Yes. When performed by experienced engineers using calibrated equipment, it restores crankshafts to OEM standards.

4. Do you provide services across all Brazilian ports?

Yes, we cover major ports including Santos, Rio de Janeiro, Paranaguá, Suape, and Itajaí.

The post Insitu Crankshaft Grinding Services In Brazil appeared first on Insitu Crankshaft Grinding.

In Situ Crankshaft Grinding – 24/7 Emergency In-Situ Crankshaft Grinding & Crankshaft Repair Services in Greece

In Situ Crankshaft — Fri, 20 Feb 2026 10:21:09 +0000

Production stops when a crankshaft breaks. Stop ships. Generators stopped working. Costs go up every hour.
That’s why emergency in situ crankshaft grinding services are so important for businesses that can’t afford to be offline.
This tutorial illustrates why on-site repair is the fastest and safest option if you need crankshaft repair near you, 24/7 crankpin grinding services in Greece, or trusted professionals like R A Power Solutions.

Emergency Crankshaft Repair Services – Available 24/7

Damage to the crankshaft doesn’t wait for business hours.

If it’s:

The motor on the boat broke down
A power plant failure
Damage to industrial diesel engines
Stuck crankpin on the generator

You need someone nearby who can fix your crankshaft in an emergency 24 hours a day, seven days a week. In critical situations, immediate support makes all the difference.

Professional in-situ grinding teams come to your location with portable crankshaft grinding equipment. They fix crankpins and journals without taking apart the whole engine. Moreover, this approach saves valuable time and reduces downtime.

Damaged Crankshaft Having Line Marks

Hardness Tester

MPI Inspection Test Before Grinding

Why Emergency In-Situ Grinding Is Critical

Eliminates engine removal
Reduces downtime by up to 70%
Saves heavy transportation costs
Immediate response in Greece & worldwide

What Is In-Situ Crankshaft Grinding?

In situ crankshaft grinding is a precision repair process performed directly inside the engine block. Instead of removing the crankshaft and shipping it to a workshop, a specialized crankshaft grinding machine is installed on-site.

This allows:

Crankpin grinding
Main journal grinding
Correction of ovality
Removal of scoring and taper
Restoration to OEM tolerances

For industries operating vessels in Greece, power plants, or offshore platforms, this method is often the only practical solution. Therefore, on-site crankshaft repair becomes not just convenient, but essential.

Crankpin Grinding Services in Greece – Fast Response Near You

If you operate marine engines, diesel generators, or industrial machinery in Greece, immediate local availability matters.

R A Power Solutions provides:

24/7 emergency crankshaft repair
On-site crankpin grinding services
Portable crankshaft grinding machine deployment
Marine and power plant crankshaft repair
Global mobilization teams

Searching for “crankshaft grinding services near you” in Greece? Rapid response teams reduce operational loss and restore engine reliability quickly.

Engine Repair by Experts

Crankshaft Grinding Machine In Use

Crankshaft Grinding Machine in Operation

Advanced Portable Crankshaft Grinding Machine Technology

Modern portable crankshaft grinding machines are engineered for:

Micron-level accuracy
In-situ alignment
Controlled surface finish
Multi-diameter crankpin capability

These machines ensure precision comparable to workshop grinding — without dismantling the engine.

For ship operators and heavy industry owners, this means faster turnaround and significantly reduced costs.

Industries That Need 24/7 Crankshaft Repair

Emergency crankshaft repair services are critical for:

Marine vessels
Power generation plants
Oil & gas facilities
Cement plants
Heavy manufacturing units
Mining operations

If your engine operates continuously, you need a service partner available 24/7—not just during office hours.

Why Choose Professional Crankshaft Repair Near You?

When searching for crankshaft repair near you, prioritize:

Emergency availability
Portable in-situ grinding capability
Experience with large diesel engines
Proven crankpin grinding expertise
Global service coverage

Time is money. Every hour of downtime can cost thousands.

Crankpin After Grinding And Polishing

Crankpin after polishing

Signs You Need Immediate Crankshaft Grinding

Call emergency services if you notice:

Low oil pressure
Knocking noise from engine
Metal particles in oil
Excessive vibration
Crankpin scoring

Ignoring these symptoms can lead to complete engine seizure.

Please email us at rajshahani@rapowersolutions.com, info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

FAQs

1. What is in-situ crankshaft grinding?

In-situ crankshaft grinding is a precision repair process performed on-site to restore crankshaft journals without removing the engine from its location, reducing downtime and cost.

2. Why choose in-situ crankshaft grinding services in Greece?

Choosing local in-situ crankshaft grinding in Greece ensures fast emergency response, experienced technicians, advanced portable machinery, and minimal disruption to vessel operations.

3. How long does in-situ crankshaft grinding take?

The time varies depending on the engine and damage level, but typical in-situ grinding jobs are completed efficiently on-site, often within a few days to keep your vessel on schedule.

4. Are emergency crankshaft repair services available 24/7?

Yes, our in-situ crankshaft grinding and repair services in Greece are available 24/7 to handle urgent repairs and minimize downtime for marine and industrial engines.

5. What types of engines do you service in Greece?

We provide in-situ crankshaft grinding and repair services for a wide range of marine and diesel engines, including large ship engines, generators, power plants, and industrial machinery.

The post In Situ Crankshaft Grinding – 24/7 Emergency In-Situ Crankshaft Grinding & Crankshaft Repair Services in Greece appeared first on Insitu Crankshaft Grinding.

Crankshaft Grinding & Repair: Why In Situ Services Are the Smartest Move for Marine & Industrial Engines | R A Power Solutions

In Situ Crankshaft — Fri, 07 Nov 2025 05:34:17 +0000

When a critical engine—like MAK, MAN, Daihatsu, Wartsila, Caterpillar, Cummins, Yanmar, Hyundai Himsen, or MAN B&W—starts showing wear on its crankshaft, downtime isn’t an option. Every minute the vessel or plant is offline, you’re losing money.

That’s exactly where R A Power Solutions comes in.

Instead of dismantling the entire engine and shipping the crankshaft to a workshop, our team travels to your site—anywhere in the world—and performs in situ crankshaft grinding and polishing right inside the engine block.

Less downtime. Less cost. No heavy logistics.

What is in situ crankshaft grinding?

In situ crankshaft grinding is the process of repairing and restoring crankpins and main journals directly on the engine, without removing the crankshaft.

We use state-of-the-art portable grinding and polishing machines designed by our in-house R&D team for precision repairs.

Key benefits:

No need to remove or transport the crankshaft
No dismantling of major engine components
Fast turnaround

Massive cost savings

Why It Matters for Marine & Industrial Engines

Whether it’s a ship sailing across continents or a power plant supporting industrial operations, crankshaft failure can bring everything to a halt.

That downtime translates to:

Delay charges
Production loss
Unplanned repair costs

R A Power Solutions specializes in repairing crankshafts of MAK, MAN, Daihatsu, Wartsila, Caterpillar, Cummins, and similar large engines installed in:

Marine vessels (bulk carriers, LNG carriers, tankers)
Offshore platforms
Power plants
Cement and mining industries

Our expertise and equipment allow us to restore crankshafts to OEM tolerances without stripping the entire engine.

On Site vs Off Site Grinding: The Advantage of R A Power Solutions

On Site (In Situ) by R A Power	Traditional Workshop Grinding
Zero crankshaft removal	Requires complete dismantling
Fast turnaround	Long transport & reassembly delays
Saves logistics cost	Expensive handling & freight
Ideal for emergencies	Slow and dependent on workshop availability

Why choose us?

Because downtime is expensive, we eliminate it.

Our step-by-step process:

On-site inspection and journal measurement
Alignment and setup of the portable grinding machine
Precision grinding within OEM tolerance
Final polishing for correct oil film thickness
Onsite crankshaft straightening & hardness test
Dynamic balancing (if required)
Final inspection and calibration report

We maintain tolerances of 0.02–0.03 mm, keeping the crankshaft within OEM specs. We’ve successfully completed crankshaft repairs across more than 45 countries, including projects in Burkina Faso, UAE, Singapore, Oman, Saudi Arabia, and the Netherlands.

How to Choose the Right In Situ Crankshaft Grinding Company

If you need crankshaft grinding or repair—and downtime is not an option—R A Power Solutions is your go-to partner.

We deliver:

Fast deployment
Global service
OEM-standard precision

Request a quote or schedule an inspection:
info@rapowersolutions.com
+91 9582647131 / +91 9810012383.

FAQs

1. What is in situ crankshaft grinding and repair?

In situ crankshaft grinding is a precision machining service performed on-site without removing the crankshaft, saving time and reducing downtime.

2. Why are in situ services ideal for marine engines?

In situ grinding keeps marine engines operational, minimizes disassembly, and avoids costly transport of large components—perfect for vessels and dockside repairs.

3. How does in situ crankshaft repair save costs?

It eliminates transportation and handling costs, reduces engine downtime, and extends engine life, making it a cost-effective solution for industrial and marine engines.

4. Can in situ crankshaft grinding handle severe wear or damage?

Yes—modern in situ grinding machines can correct heavy wear, scoring, and out-of-tolerance journals with high precision, restoring crankshaft geometry effectively.

5. How long does an in situ crankshaft repair typically take?

Turnaround time varies by engine size and damage severity, but in situ services are generally faster than workshop repairs since no removal or shipping of parts is needed.

The post Crankshaft Grinding & Repair: Why In Situ Services Are the Smartest Move for Marine & Industrial Engines | R A Power Solutions appeared first on Insitu Crankshaft Grinding.

In-Situ Crankshaft Grinding: Save Time, Money & Downtime

In Situ Crankshaft — Thu, 16 Oct 2025 07:08:56 +0000

What Is In-Situ Crankshaft Grinding & Why It Matters

Pulling off the crankshaft is a huge bother if you have a large engine block or a ship offshore. With in-situ crankshaft grinding, the crankshaft is repaired, reground, or polished in its original location without the need for disassembly, transportation, or additional work that would disrupt your schedule.

The Big Problems It Solves

Downtime kills profits—When your engine’s down waiting for shop time, as a result, one part can delay everything. However, with in-situ crankshaft grinding, you can keep operations running smoothly.
Cost savings—less transport + less labor + no costly reinstallation.
Quality and precision — Modern portable machines can hit tolerances like ~0.015-0.02 mm, near parallelism, surface finishes that meet OEM specs.
By cutting down on big lifts and unnecessary handling, you actively lower safety risks and prevent damage to other parts.

What Makes a Great In-Situ Crankshaft Grinding Service

Precision — tight tolerances, excellent finish (measured RA value, etc.)
Speed & readiness—portable, lightweight machines; teams that can mobilize fast.
Comprehensive service—not just grinding but inspection, straightening, polishing, connecting rod checking, etc.
Reliability & credibility—trained technicians, OEM compliance, strong after-sales, spares, etc.
Versatility—works in marine, offshore, and power plants

How We Do It Differently / Better

We have 24/7 mobilization, supply for remote/offshore locations, spare consumables globally, OEM standard finish, and a better warranty.

At RA Power Solutions, we provide specialized crankshaft grinding machine, crankshaft grinding machine, crankshaft grinding repair, crank shaft grinding repair, onsite crankshaft grinding repair, on site crankshaft grinding repair, insitu crankshaft grinding, in situ crankshaft grinding, Onsite crankshaft grinding machine, on site crankshaft grinding machine, insitu crankshaft grinding machine, in situ crankshaft grinding machine, crank pin bearing, crankpin bearing, crankpin bearings, crank pin bearings, metal stitching, metal locking, metal stitching locking, engine block repair, crack repair by metal stitching, cast iron crack repair, crankpin polishing, crank pin polishing, inspection of crankshaft, crankshaft inspection, rebabbitting bearing, babbitt white metal, engine overhauling, crank pin grinding, grinding of crankpin, connecting rod, turbine shaft bearing services worldwide.

For inquiries, contact us at rajshahani@rapowersolutions.com, infor@rapowersolutions.com, or call +91-9810012383 / +91-9582647131.

FAQs

1. What is in situ crankshaft grinding?

In situ crankshaft grinding is the process of repairing a crankshaft on-site without removing it from the engine, reducing labor, transport costs, and downtime.

2. How does in situ crankshaft grinding save time and money?

Because the crankshaft stays in place, it eliminates the need to dismantle and transport the engine. This speeds up repairs and significantly lowers service costs.

3. Is in situ crankshaft grinding suitable for marine engines?

Yes — marine engines benefit greatly from in situ services due to limited space, high operating costs, and the need for fast turnaround during port stays.

4. What types of damage can be fixed using in situ crankshaft grinding?

In situ grinding can correct worn journals, scoring, tapered surfaces, and minor shaft misalignments, restoring smooth engine operation.

5. How does in situ crankshaft grinding compare to traditional workshop repair?

In situ grinding is faster, more cost-effective, and avoids extensive engine disassembly, while traditional repairs require dismantling, transport, and reassembly.

The post In-Situ Crankshaft Grinding: Save Time, Money & Downtime appeared first on Insitu Crankshaft Grinding.

Himsen Hyundai 6H17/28 Crankshaft Repair in Turkey

In Situ Crankshaft — Sat, 13 Sep 2025 10:44:10 +0000

In December 2024, RA Power Solutions successfully repaired a Himsen Hyundai 6H17/28 crankshaft on a vessel anchored at MIP Mersin, Turkey. The Italian-owned ship experienced a major breakdown in one of its auxiliary engines due to lubricating oil pump failure, which damaged all connecting rod bearings. Upon inspection, technicians found bearing material embedded in all six crankpins, with taper and ovality measurements ranging from 0.22 mm to 0.86 mm. Technicians also detected minor hairline cracks. Using in situ crankshaft grinding equipment, the team reduced the diameters of the crankpins by 1.00 mm to 1.50 mm, restoring them to operational standards.

Therefore, this case clearly highlights why in-situ crankshaft grinding and on-site crankshaft repair services continue to be the preferred choice for shipowners and marine engineers, especially when they are facing unexpected engine breakdowns.

Why This Repair Was Critical

Initially, the auxiliary engine’s lubricating oil pump failed, which consequently caused extensive damage to the connecting rod bearings. As a result, bearing material was found embedded in all six crankpins, ultimately leading to significant taper and ovality beyond acceptable limits.

Without timely intervention, this damage could have led to further engine failure, extended downtime, costly workshop overhauls, or even disassembly of the entire engine block — all of which are highly disruptive and expensive for commercial vessels.

On-Site Crankshaft Grinding: How It Works

Insitu crankshaft grinding uses state-of-the-art portable grinding machines that are brought directly to the vessel. Technicians perform precision grinding and polishing of crankpins and journals without the need to remove the crankshaft.

Key benefits include:

Fast turnaround and reduced vessel downtime
No dismantling or transportation of the crankshaft
Restoration of OEM-compliant dimensional tolerances
Minimal interruption to vessel operations
Cost-competitive compared to workshop repairs

These advantages make onsite machining one of the most efficient marine crankshaft repair solutions in the industry.

Before vs After: Dimensional Accuracy Restored

Before repair, crankpin taper and ovality ranged from 0.22 mm up to 0.86 mm, exceeding acceptable engine standards and risking further mechanical issues.

After precise in-situ grinding:

Three crankpins were ground to a diameter of 174.00 mm
Three additional crankpins were ground to 173.50 mm
Final measurements had ovality within 0.02 mm, meeting strict OEM tolerances and ensuring long-term reliability.

This precise dimensional restoration demonstrates the accuracy of insitu crankshaft grinding technology.

Global On-Site Crankshaft Repair Capabilities

RA Power Solutions provides onsite crankshaft grinding and heavy engine repair services worldwide — from Turkey to the Middle East, South Asia, Africa, and beyond. Their teams are ready to respond quickly and efficiently, minimizing operational disruptions for shipping companies everywhere.

For a comprehensive overview of a similar repair, check out our latest blog post: Himsen Hyundai 6H17/28 Crankshaft Repair in Turkey.

For more information regarding crankshaft grinding services, onsite insitu crankshaft repair, crankshaft grinding and repair, grinding of onsite crankshaft repair, insitu crankshaft grinding repair, grinding of crankshaft onsite please contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.

FAQs

1. What caused the breakdown of the Himsen Hyundai 6H17/28 engine?

The breakdown was due to a lubricating oil pump failure, which damaged the connecting rod bearings. And led to embedded bearing material on all six crankpins.

2. How severe were the crankpin deformations?

Before repair, taper and ovality on the crankpins ranged from 0.22 mm up to 0.86 mm, indicating significant wear and distortion.

3. What repair technique was used to restore the crankshaft onboard?

RA Power Solutions operated in situ crankshaft grinding equipment directly aboard the vessel at MIP Mersin. And enabling them to grind and polish the crankpins without removing the shaft.

4. How much material was removed from the crankpins?

Our technicians ground down three crankpins by 1.00 mm to a final diameter of 174.00 mm. While they reduced the other three by 1.50 mm to reach 173.50 mm.

5. Did the team restore post-repair tolerances to acceptable levels?

Yes. After grinding, all six crankpins achieved diameters with ovality within 0.02 mm, meeting OEM dimensional tolerances.

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