Why Onsite Inspection of Crankshaft Matters?

When serious machinery stops due to crankshaft issues, downtime and repair costs can skyrocket. Onsite inspection of crankshafts offers a smarter solution: bringing precision diagnostic tools right to the equipment, whether at sea, in a power plant, or on heavy-duty industrial engines. This method helps engineers identify wear, cracks, and misalignment without removing the crankshaft from its engine housing.

Core Steps in Onsite Crankshaft Inspection

Visual Examination: Check crankpin journals, oil holes, fillets, and counterweights for scoring, discoloration, or surface defects

Dimensional Measurements: Use micrometers and dial indicators to assess journal diameters, ovality, taper, and run‑out tolerances

Hardness Testing: Portable hardness testers confirm material strength and surface treatment integrity

Crack Detection: Utilize non-destructive methods, such as magnetic particle inspection, dye penetrant testing, or ultrasonics, to detect hidden cracks.

Surface Finish Check: Profilometers assess roughness to ensure the surface meets OEM standards.

Inspection of onsite crankshaft machining
Inspection of onsite crankshaft machining

Advantages of Onsite Over Workshop Inspection

  • Zero Transportation Risk & Downtime
    Avoid dismantling, shipping delays, and handling mistakes by inspecting in place.
  • Fast, Cost‑Effective Solutions
    Field diagnostics and repair plans are generated immediately, minimizing production losses
  • Precision Checks with Portable Tools
    Onsite techniques maintain OEM tolerances through calibrated gear and experienced technicians.
Onsite Inspection of Crankpin Before Polishing & Grinding
Onsite Inspection of Crankpin Before Polishing & Grinding
Onsite Inspection of Crankshaft Grinding Machine

Common Issues Caught by Onsite Inspection

Crankshaft Cracks: Even faint stress lines become visible through NDT methods during routine checks.

Excessive Wear or Ovality: Regular measurement helps catch taper or roundness issues early and avoid journal failure.

Surface Damage: Polishing, grinding, or realignment can be scheduled ahead of major malfunctions.

The Role of Mobile In‑Situ Grinding & Repair

  • In many cases, after inspection, it’s faster to grind or polish the onsite crankshaft using portable precision tools. This method:
  • Restores OEM tolerances
  • Straightens bent shafts
  • Smooths surface imperfections
  • Requires no crankshaft removal
Onsite Crankshaft Grinding and Polishing under process

Why Choose RA Power Solutions?

  • 45+ Years of Expertise
  • 24/7 Worldwide Availability
  • Portable, OEM-Grade Equipment
  • In-House Manufacturing of Tools
  • ISO Certified Services
  • Strong Client Portfolio Across Marine, Power & Industrial Sectors
Crankpin Ready After Grinding and Polishing
Crankpin Ready After Grinding and Polishing

Boost Reliability with RA Power Solutions

If you’re facing crankshaft issues or planning preventive maintenance, trust a company that brings the workshop to your engine. With RA Power Solutions, you get high-quality on site inspection of crankshaft services without delays, disassembly, or extra cost.

For more details on the Onsite Inspection of Crankshaft, Onsite Crankshaft Repair, or email us at info@rapowersolutions.com. Call at +91-9582647131,+91 9810012383.

FAQs:

1. What is an onsite inspection of a crankshaft?

Onsite crankshaft inspection involves checking the condition of the crankshaft at the equipment’s location, without removing it from the engine. It includes dimensional checks, crack detection, hardness testing, and alignment verification.

2. What are the benefits of insitu crankshaft repair?

Insitu crankshaft repair minimizes downtime, avoids expensive transport or disassembly, and restores crankshaft geometry quickly. It’s a cost-effective solution for marine, industrial, and power plant engines.

3. How long does onsite crankshaft inspection and repair take?

Most inspections are completed within a few hours. If grinding or straightening is needed, the repair process may take 1–2 days, depending on the extent of damage and the number of journals involved.

When serious machinery stops due to crankshaft issues, downtime and repair costs can skyrocket. Onsite inspection of crankshafts offers a smarter solution: bringing precision diagnostic tools right to the equipment, whether at sea, in a power plant, or on heavy-duty industrial engines. This method helps engineers identify wear, cracks, and misalignment without removing the crankshaft … Continue reading “Why Onsite Inspection of Crankshaft Matters?”

Second-Hand Connecting Rods | Repair of Connecting Rods | Reconditioning of Connecting Rods – RA Power Solutions

Connecting rods of high capacity, main and auxiliary engines are repaired by RA Power Solutions. Connecting rods during the operation of the engine are heavily stressed, transmitting power generated in the combustion chamber to the crankshaft. It is important that periodically or at the time of general overhauling, the condition of the connecting rod is checked, and either it is replaced or connecting rod is reconditioned.

Inspection of Crankshaft is in Process
Inspection of Crankshaft is in Process

RA Power Solutions has four decades of experience in reconditioning of connecting rods up to the bore size of 500 mm.

Following process is adopted for successful reconditioning of connecting rods:

  • Connecting rod is subject to chemical cleaning and shot blasting after dismantling.
  • The big end and small end bore of connecting rod are checked and recorded
  • Connecting rod is checked for cracks and overheating by MPI or Dye penetrant test.
  • The serration of the joining face connecting rod bolts are also subject to crack detection.
  • Center to center distance of big end bore and small end bore is also checked.
  • Straightness of connecting rod is also checked.
Inspection of Connecting Rod
Inspection of Connecting Rod
Inspection after Reconditioning of Connecting Rods
Inspection after Reconditioning of Connecting Rods

The connecting rod’s big end and small end are re-machined/bored on the latest design of the boring machine equipped with DRDO. All the connecting rods repaired by us are guaranteed for satisfactory performance and are 100% check for quality.

Second hand connecting rods of CAT 3616 engine
Second-hand connecting rods of CAT 3616 engine
Second hand connecting rods of MAK engine in stock
Second-hand connecting rods of MAK engine in stock

We also maintain a large stock of repaired connecting rods which are reconditioned strictly as per the manufacturer’s specifications and tolerance. Generally, the cost of a reconditioned connecting rod is ¼ of the connecting rods sold by engine manufacturers.
We maintain the stock of connecting rod for the following engines:

Wartsila, Daihatsu, MWM, Caterpillar, Man, Mak, B&W, Sulzer, Bergen, Detroit Diesel, Stork Werkspoor, Pielstick, Deutz, Yanmar, MTU, Cummins, Nohab Polar, Caterpillar, Mitsubishi, Yanmar, Mak 551, Mak 552, Mak 453, Mak 451 AK , Mak 452 AK, Deutz 540 , Deutz 358 , Deutz 350, Pielstick PC 2.2 PC 2.5, Wartsila 524, Wartsila 824 TS, Sulzer 6 AL 25/30, Sulzer 5 AL 25/30 MWM TBD 484, MaN 40/54 , Man Sulzer 12 ASV 25/30, Sulzer 16 ZV 40/48, Deutz BV 16M 540, B&W 6L 45 GFCA, MAN B&W 55/GF, CAT D353, B&W 5T23LH, Daihatsu 6 PST 26D, Daihatsu 6 PSHTb 26M, Mak 6MU 451 AK, Deutz 6M 628, Caterpillar 3512, Deutz BV 12M 628, MWM TBD 234, WICHMANN 5AX, SKL 8NVD 48A-2U, Pielstick PC 2.2 LNR, Caterpillar 3508 and more.

Second hand connecting rods of Wartsila Engine
Second-hand connecting rods of Wartsila Engine
Connecting rods under inspection
Connecting rods under inspection

The author of the blog is Mr. Raj Shahani, Managing Director of the company. He is having 44 years of experience in providing new and reconditioned marine engine spares like connecting rod, cylinder liners, cylinder head, crankshaft, heat exchangers, gaskets, camshaft, white metal bearings, and many more.

For more information regarding engine connecting rods, bearings for Daihatsu engine, bearings for Yanmar engine, and new and reconditioned engine spares with the guarantee, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Connecting rods of high capacity, main and auxiliary engines are repaired by RA Power Solutions. Connecting rods during the operation of the engine are heavily stressed, transmitting power generated in the combustion chamber to the crankshaft. It is important that periodically or at the time of general overhauling, the condition of the connecting rod is … Continue reading “Second-Hand Connecting Rods | Repair of Connecting Rods | Reconditioning of Connecting Rods – RA Power Solutions”

Connecting Rod Reconditioning – RA Power Solutions

Engines are the most important parts of heavy-duty industrial machinery, ships, and power plants. The connecting rod is one of the most important parts of an engine. It is very important for moving the combustion force from the piston to the crankshaft. Over time, these rods are put under a lot of stress, fatigue, and heat, which causes them to wear out and possibly break.

Connecting Rod Assembled with Piston After Repair
Connecting Rod Assembled with Piston After Repair

Rather than replacing connecting rods — which can be expensive and time-consuming — connecting rod reconditioning offers a cost-effective and reliable solution.

At RA Power Solutions, we offer world-class reconditioning services that restore the connecting rod to its original specifications and performance levels.

What Makes Reconditioning Necessary?

During engine operation, the connecting rods face:

  • High mechanical stress from piston motion
  • Thermal expansion and contraction
  • Wear and tear at the small and big end bearings
  • Cracks or distortion due to oil starvation or overloading

If these problems aren’t fixed, they could cause serious engine damage, such as a crankshaft failure, a piston seizure, or even a complete engine breakdown. That’s why it’s important to recondition things on time to avoid expensive repairs or replacements.

Reconditioning of the connecting Rod
Reconditioning of the connecting Rod

Detailed Reconditioning Process at RA Power Solutions

1. Initial Cleaning and Visual Inspection

Onsite connecting rod repair are cleaned and inspected for any visible signs of cracks, scoring, discoloration, or deformation.

2. Dimensional Analysis

We check for:

  • Ovality or taper in the big and small ends
  • Rod length
  • Bend and twist
  • Bore misalignment

All measurements are compared with OEM tolerances.

3. Crack Detection

Using Non-Destructive Testing (NDT) methods like Magnetic Particle Inspection (MPI), we detect micro-cracks or structural flaws.

4. Big End and Small End Machining

If the big and small end bores are not round, we re-machine or hone them. If the bush on the tiny end is worn out, it is taken out and replaced with a new one that is the right size.

5. Replacement of Worn Components

We replace connecting rod bolts, nuts, and bushings using certified OEM or equivalent parts to ensure integrity under high load.

5. Straightening and Alignment

Using jigs and hydraulic presses, we realign the rod to original specifications, correcting any bend or twist developed during operation.

6. Final Inspection and Quality Control

Every reconditioned rod is tested for:

  • Dimensional accuracy
  • Surface finish
  • Bolt torque
  • Structural integrity
Connecting Rods
Connecting Rods

Benefits of Choosing RA Power Solutions for Reconditioning

  • Cost Saving: Reconditioning is 60–70% cheaper than replacement.
  • OEM Precision: We restore parts to manufacturer specs.
  • Rapid Turnaround: Save time, especially for critical engines.
  • On Site Service: No disassembly or transport delays.
  • Experienced Technicians: 45+ years in engine component repair.
  • Sustainable Choice: Minimizes industrial waste and promotes part reuse.

Contact us for more information on onsite connecting rod repair, repair of crankshaft at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Frequently Asked Questions (FAQs):

Q1. How do I know if my connecting rod needs reconditioning?

Look out for signs like abnormal engine noise, vibration, worn bearing surfaces, or metal particles in oil. An inspection during engine overhauls is highly recommended.

Q2. Is connecting rod reconditioning safe?

 Yes, when done by experts using precision tools and NDT testing, reconditioned rods are as safe and reliable as new ones.

Q3. What engines do you service?

 We work on all major makes, including MAN, Wartsila, Caterpillar, MAK, Daihatsu, Yanmar, SKL, Deutz, and more.

Engines are the most important parts of heavy-duty industrial machinery, ships, and power plants. The connecting rod is one of the most important parts of an engine. It is very important for moving the combustion force from the piston to the crankshaft. Over time, these rods are put under a lot of stress, fatigue, and … Continue reading “Connecting Rod Reconditioning – RA Power Solutions”

Connecting Rod Inspection – A Critical Step in Engine Overhaul By RA Power Solutions

The connecting rod is an important component of engine operation. It connects the piston to the crankshaft, converting the piston’s linear action into rotational motion. Over time and with continuous engine use, the connecting rod experiences high amounts of tension and wear. This makes routine inspection and maintenance of the connecting rod essential to ensure engine reliability and performance.

Second Hand Connecting Rod of CAT Engine
Second Hand Connecting Rod of CAT Engine

At RA Power Solutions, we specialize in precision inspection and repair of connecting rods for marine engines, power plants, and industrial diesel engines.

Why is connecting rod inspection important?

A damaged or worn-out connecting rod can lead to serious engine problems such as:

  • Excessive vibration
  • Piston seizure
  • Crankshaft damage
  • Catastrophic engine failure

To avoid these issues, thorough inspection and repair should be part of every engine overhaul and maintenance schedule.

Inspection of Wartsila Connecting Rod
Inspection of Wartsila Connecting Rod

Our Inspection Process Includes:

1. Visual Inspection:

We look for visible cracks, discoloration due to overheating, and wear patterns.

2. Dimensional Check:

  • Using micrometers, bore gauges, and other precision tools, we check:
  • Big end bore diameter
  • Small end bore diameter
  • Overall length
  • Parallelism and twist

3. Crack Detection (NDT Testing):

We use Magnetic Particle Inspection (MPI) or Ultrasonic Testing (UT) to detect internal or surface-level cracks invisible to the naked eye.

4. Hardness Testing:

This helps determine whether the connecting rod material is still within acceptable strength limits after long-term usage.

5. Bolt and Bush Inspection:

We thoroughly inspect or replace the connecting rod bolts and bushes, which are often prone to fatigue and wear.

Industries We Serve

We serve a diverse client base in Asia, Africa, the Middle East, and Latin America, including marine, power generating, mining, cement, and heavy engineering industries.

Connecting Rod Of Daihatsu Ready For Dispatch
Connecting Rod ready for dispatch

Need Expert Inspection Services?

With over 45 years of experience, RA Power Solutions is your trusted partner for connecting rod inspection and repair. We provide services both on-site and in-house, ensuring minimum downtime and maximum quality.

For more information regarding engine connecting rods, used connecting rods, connecting rod inspection, engine block repair, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Frequently Asked Questions (FAQs):

1. How often should connecting rods be inspected?

 It is recommended to inspect connecting rods during every major engine overhaul or after every 10,000–15,000 hours of operation, depending on engine type.

2. What are the signs of a faulty connecting rod?

Excessive noise, engine knocking, vibration, and poor engine performance can indicate a problem with the connecting rod.

3. Can a cracked connecting rod be repaired?

Minor cracks can sometimes be repaired using certified welding and heat treatment. However, replacement is advised if the integrity is compromised.

4. Do you offer on-site connecting rod inspection?

 Yes, RA Power Solutions specializes in on-site inspection and repair of connecting rods and other engine components globally.

5. What industries typically need connecting rod services?

 We serve marine, power plants, cement, mining, oil & gas, and heavy industries with high-capacity engines.

The connecting rod is an important component of engine operation. It connects the piston to the crankshaft, converting the piston’s linear action into rotational motion. Over time and with continuous engine use, the connecting rod experiences high amounts of tension and wear. This makes routine inspection and maintenance of the connecting rod essential to ensure … Continue reading “Connecting Rod Inspection – A Critical Step in Engine Overhaul By RA Power Solutions”