Link Archives - Page 3 of 4 - Connecting Rod Repair

Grinding of Crankshaft in Oman by RA Power Solutions

**Onsite Crankpin Grinding is in Process**

A vessel sailing near Oman reported serious breakdown of auxiliary engine of Yanmar model 6N18AL. RA Power Solutions team which is always ready for emergency response left for Oman and conducted the detailed inspection of the engine. It was observed that crankpin no. 4 bearing seized, resulting in the damage of CR pin no. 4. All other crankpins also developed ovality to the extent of maximum 0.20 mm.

RA Power Solutions having 40 years of experience in field of crankshaft ginding and repair services has achieved many land marks and have performed more than satisfactory for the clients spread all over the world. The expert team of crankshaft grinding technicians can undertake the grinding of crankshafts up to 700 mm.

**Crankpin Grinding by Onsite Crankshaft Grinding Machine**

All the parameters like taper, ovality, surface finish, etc. after crankshaft grinding are maintained strictly as per the manufacturer’s specifications. RA Power Solutions undertakes all the jobs related to repair, maintenance, overhauling of high capacity of diesel engines and diesel generating sets onsite all over the world. The only company which has undertaken repair of more than 11,000 crankshafts and is highly respected for its commitment.

For more information about our services for crankshaft grinding machine for engine repair, crankshaft grinding machine supplier, insitu machining crankshaft repair, onsite crankshaft machining and polishing, onsite crankshaft machining service, grinding of crankshaft, and crankshaft repair please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

A vessel sailing near Oman reported serious breakdown of auxiliary engine of Yanmar model 6N18AL. RA Power Solutions team which is always ready for emergency response left for Oman and conducted the detailed inspection of the engine. It was observed that crankpin no. 4 bearing seized, resulting in the damage of CR pin no. 4. … Continue reading “Grinding of Crankshaft in Oman by RA Power Solutions”

Reconditioned of Connecting Rods and Repair | Engine Connecting Rods

RA Power Solutions is a leader in undertaking repair and reconditioning of connecting rods of high-capacity engines installed in diesel engine power plants, ships, and for other applications.

Reconditioning of connecting rod and repair methodology have been developed by using latest breed of equipment and our experience of four decades in this field.

Inspection of Connecting Rods — **Marine Engine Connecting Rods under Reconditioning**

We strongly recommend our customers to go for reconditioned connecting rods which are thoroughly checked in our workshop and repair maintaining the tolerances as the original.

The reconditioned connecting rods for most of the popular diesel engines are available in stock or can be supplied in a short duration. Details of few engines for which reconditioned connecting rods are readly available is mentioned below.

MAN-B&W, Sulzer, Wartsila, Mak, Deutz, Pielstick, Mitsubishi, Nohab, Daihatsu, Yanmar, Bergen, Crepelle, Niigata, Himsen, Allen, Stork, MWM, Hanshin, Caterpillar, Ruston, Paxman, Mirrlees, Alco, Fiat, ABC, Crepelle, SKL, etc.

Second Hand Connecting Rod of Wartsila Engine

Second Hand Connecting Rod of CAT Engine

The availability of reconditioned connecting rod gives ship operators and diesel power plant owners access to low cost. Reconditioned connecting rods which are equivalent to the new one in terms of tolerances, performance, and life cycle.

RA Power Solutions as an experienced and most respected company in the field of diesel engines strongly recommends use of reconditioned connecting rods quality of which is guaranteed by our controlled, approved process of repair and technology and through the metallurgical examination during and after reconditioning.

Generally, the price of reconditioned connecting rods is 1/4^th of the new connecting rod resulting in enormous saving to the owners. For more information regarding marine engine spares, new connecting rods and reconditioned connecting rods & engine connecting rods of all make and model of diesel engine, please free to write us at, rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Inspection of Wartsila Engine Connecting Rod

RA Power Solutions is a leader in undertaking repair and reconditioning of connecting rods of high-capacity engines installed in diesel engine power plants, ships, and for other applications. Reconditioning of connecting rod and repair methodology have been developed by using latest breed of equipment and our experience of four decades in this field. We strongly … Continue reading “Reconditioned of Connecting Rods and Repair | Engine Connecting Rods”

Onsite Crankshaft Grinding Machine for Crankshaft Repair – RA Power Solutions

RA Power Solutions with 4 decades of experience have now introduced onsite crankshaft grinding machine which is portable and can undertake crankshaft machining, crankshaft grinding, and crankshaft repair onsite.

Grinding of Crankpin using Onsite Crankshaft Grinding Machine

Now there is no need to remove the crankshaft from engine block and sending it to the workshop. Crankshaft grinding machine has following features:

I) The crankshaft grinding machine is introduced by RA Power Solutions, having experience of 4 decades in crankshaft repair.

II) After extensive trials and experience, the machine is now introduced in the open market for the benefit of shipping companies, engine repair workshops, power plants, etc.

III) The onsite crankshaft grinding and polishing machine is of latest design, having minimum vibrations during operation. Onsite crankshaft grinding machine can be used while sailing the vessel.

IV) Tolerances achieved after crankshaft grinding and crankshaft polishing are far better than the manufacturer’s specifications. This is proven as repairs executed are class approved.

In case of emergency, this onsite crankshaft grinding and polishing can be operated round the clock. The onsite crankshaft grinding and polishing machine is easy to operate and job training is provided. This machine is supplied ready to use and complete in all respect. More than 70 machines supplied all over the world.

Crankshaft Grinding Machine Packed in Steel Box for Dispatch

For more information, on crankshaft repair and crankshaft grinding services, contact us by email at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

RA Power Solutions with 4 decades of experience have now introduced onsite crankshaft grinding machine which is portable and can undertake crankshaft machining, crankshaft grinding, and crankshaft repair onsite. Now there is no need to remove the crankshaft from engine block and sending it to the workshop. Crankshaft grinding machine has following features: I) The crankshaft … Continue reading “Onsite Crankshaft Grinding Machine for Crankshaft Repair – RA Power Solutions”

Repair of Connecting Rod for High Capacity Engine – RA Power Solutions

RA Power Solutions undertakes reconditioning and repair of connecting rods mainly of high capacity engines for last 4 decades of Wartsila, Caterpillar Engine, MAK, MAN, Mitsubishi, Yanmar, Pielstick, Deutz, etc.

**Reconditioning of Connecting Rod is in Process**

We are following procedure for repair of connecting rods:

Connecting rods are thoroughly cleaned by special chemicals to remove oil and dirt.
Connecting rod is checked visually for any signs of overheating which

**Calibration of Connecting Rod in Process**

may be indicated by a “bluish” appearance. In that case, it is recommended to check the hardness and undertake MPI for crack detection on the area which is exposed to the overheating.

Magnetic particle test by qualified technician is undertaken under supervision of senior engineer to check the crack on serration, connecting rod bolt and bolt sitting area and complete connecting rod. No crack whatsoever are accepted on connecting rod.
Connecting rod bolts are checked for elongation; in case of any deviation bolts are replaced.
Connecting rod big end bolt is tightened as per the torque specified by the manufacturer.
Big end bore taper and ovality is checked. The bore is also checked visually for any damage.

**Repair of Connecting Rod is in Process**

The small end bore is also inspected for taper, ovality or any visual damage.
Connecting rod is subject to shot blasting.
The first step for repair is to lap the serrations to the minimum, in order to bring the bore size to minus with enough allowance for internal grinding. For this special purpose machine is used.
The small end bush is replaced with new one in case the taper and ovality is on higher side.
Connecting rod is placed on our boring machine equipped with latest generation of DRDO. The straightness of connecting rod is checked.
We do not recommend use of any connecting rod which has lost its alignment. No deviation is accepted and it is not recommended to straighten the connecting rod.
Boring of big end bore and small end bore is done simultaneously not only to maintain the taper and ovality of big end small bore but to ensure that centre distance of both the bores is maintained.
All the sharp edges are removed after boring operation.
Connecting rod is again subject to dimensional inspection and all the readings are recorded.
While returning the connecting rod, proper packing is ensured.

Inspection of Connecting Rod is in Process

Contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383 for more information.

Connecting rod of high capacity marine engine requires periodic calibration. Marine and power industry has experienced serious accidents due to failure of connecting rods. Some of the accidents due to failure of the connecting rods have even resulted to the complete damage of the engine. RA Power Solutions undertakes reconditioning and repair of connecting rods … Continue reading “Repair of Connecting Rod for High Capacity Engine – RA Power Solutions”

Metal locking of Engine Block by Experienced Technicians – RA Power Solutions

On site Metal stitching and metal locking is a precise mechanical method of making permanent repairs to broken casting and machine parts.

An engine block of Wartsila 18V32 was reported damaged by South American power plant due to failure of connecting rod. The engine was just out of warranty and the cost of bare engine block quoted was exorbitant with the delivery time of 9 months.

RA Power Solutions technicians have successfully undertaken the repair of damaged engine block of Wartsila 18V32 by metal locking and metal stitching process. The block was repaired while it was on the foundation and without disassembly of crankshaft and major components. The damaged portion was measuring 72 inches X 42 inches approx.

**Metal Stitching & Locking of Crankcase Door is under progress**

Metal locking and metal stitching is executed by experienced engineers having record of repairing engine block and major engine components exceeding more than 1300 numbers in last 40 years.

A cost-effective, quick in response, and sincerity are the main advantages of getting repairs done by RA Power Solutions.

For more details regarding metal stitching, metal locking services, repairing cast iron metal lock, cast iron repair, and Metal Locking of engine block at Low Price, email us your query at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

On site Metal stitching and metal locking is a precise mechanical method of making permanent repairs to broken casting and machine parts. An engine block of Wartsila 18V32 was reported damaged by South American power plant due to failure of connecting rod. The engine was just out of warranty and the cost of bare engine … Continue reading “Metal locking of Engine Block by Experienced Technicians – RA Power Solutions”

Cylinder Liners- New and Reconditioned for Diesel Generating Sets – RA Power Solutions

Large stock of new diesel engine cylinder liner, cylinder liners of popular make and model of engines is maintained and can be supplied to the end users in a short time. We also develop and manufacture cylinder liners as per the drawing or as per the sample of the cylinder liner provided to us. We have the facility to develop and manufacture even small quantity of cylinder liners if required.

Cylinder Liners for Wartsila Diesel Engine

Each cylinder liners are inspected in-house for dimensional correctness. We also have a facility to check the metallurgy of cylinder liner after it is cast. On request, cylinder liner inspection reports are provided to the client.

Reconditioned cylinder liners are available in stock in large numbers. We ensure that the wear and tear of cylinder liner bore, and other important dimensions is minimum. The reconditioned cylinder liners supplied by us are as good as new and almost have the same life. We stand guarantee for satisfactory performance of reconditioned cylinder liners.

Liners supplied by us and are priced far cheaper than the cylinder liners supplied by the engine manufacturers. The popular make of engines for which cylinder liner installation, cylinder liners are maintained in stock is mentioned below:

MAN-B&W, Sulzer, Wartsila, Mak, Deutz, Pielstick, Mitsubishi, Daihatsu, Yanmar, Bergen, Niigata, Himsen, Allen, Stork, MWM, Hanshin, Caterpillar, SKL, Ruston, Paxman, Crepelle, Mirrlees, Alco, ABC, Crepelle, Nohab etc.

Cylinder Liners

To get more information regarding cylinder liner manufacturer, clinder head liner, cylinder sleeves of diesel and marine engine, engine cylinder liner, and Allen cylinder manufacturers contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

We manufacture cylinder liners for high-capacity diesel engines, compressors, rotatory equipments. Cylinder liners are centrifugally cast, machined, and honned. Cylinder liners up to 1500 mm length and 600 mm bore size are manufactured. Large stock of new diesel engine cylinder liner, cylinder liners of popular make and model of engines is maintained and can be … Continue reading “Cylinder Liners- New and Reconditioned for Diesel Generating Sets – RA Power Solutions”

Crankshaft Grinding Machine – RA Power Solutions

The crankshaft grinding machine which is lightweight, portable, and easy to operate is manufactured by RA Power Solutions. The crankshaft grinding machine is revolutionary equipment developed and manufactured by us.

A few years the back industry had no option but to remove the crankshaft from the engine block, pack it and transport it to the workshop for repairs which was not only expensive but was time-consuming. With the introduction of an onsite crankshaft grinding machine, the removal of the crankshaft and sending it to the designated workshop is outdated and is no more required by the industry.

The crankshaft grinding machine manufactured by RA Power Solutions can undertake onsite crankshaft grinding and polishing, crankpin, and main journal diameter ranging from 60 mm to 700 mm. The latest design of the crankshaft grinding machine can undertake grinding and polishing in one setting. The minimum vibration while in the operation of the crankshaft grinding machine results in the maintenance of close tolerances and high surface finish.

RA Power Solutions as of date have sold more than 63 crankshaft grinder to countries like the Netherlands, Belgium, Iraq, Saudi Arabia, South America, Jordan, Ecuador, Singapore, Indonesia, Dubai, Brazil, Scotland, Greece, Italy, UK, Nigeria, etc.

Since the machine is priced low, it is highly recommended for repair workshops, shipping companies, power plants, and the general industry. The onsite training, operation, and maintenance of the crankshaft grinding machines are provided by highly experienced technicians with hand of experience in crankshaft repair of four decades.

For more information regarding crankshaft grinding services, crankshaft grinder, onsite crankshaft grinding, and crankshaft grinders machines, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

The crankshaft grinding machine which is lightweight, portable, and easy to operate is manufactured by RA Power Solutions. The crankshaft grinding machine is revolutionary equipment developed and manufactured by us. A few years the back industry had no option but to remove the crankshaft from the engine block, pack it and transport it to the … Continue reading “Crankshaft Grinding Machine – RA Power Solutions”

Cylinder Liners – RA Power Solutions

Cylinder liners up to the length of 1500 mm are manufactured by us. We strictly follow the centrifugal process for casting of cylinder liners. The material composition of cylinder liners is maintained strictly as per the manufacturer’s specifications.

We develop and manufacture cylinder liners either as per the drawing or as per the sample. The casting of cylinder liners after the centrifugal process is checked thoroughly by our technicians for blow holes, porosity, and any casting flaw.

The cylinder liner is machined on the latest breed of CNC equipment, which helps us to maintain close tolerances. The honing operation of cylinder liners is done in-house, maintaining the surface finish angle and profile as per the requirement. We regularly export large quantity of engine cylinder liners. We are considered to be quality-conscious and are a competitively priced cylinder liners exporter.

We have cylinder liners of the following makes in stock:

ABB, ABC, Anglo Belgian Corporation, Akasaka, Alco Diesel Engines, Alfa Laval, Allen, Alpha Diesel, Alstom, B & W, Bergen Diesel Engines, Blackstone, Bosch, Caterpillar, Cegielski, Consilium, Crepelle, Cummins, Daihatsu, Detroit Diesel, Deutz, DeutzMarine Engine, EMD, Fiat, FUJI, Fuji Diesel, Furuno, Hanshin, Headway, HIMSEN, Holset, Hyundai, JRC, Kawasaki, Kelvin Hughes, Kongsberg Maritime, L’OrangeMaschinenfabrik, MaK, MAN, MAN B&W, Martek Marine, Mirrlees Blackstone, Mitsubishi, Mitsubishi UE/UEC, MTU, MWM, Napier, NAVTEX, Nigata, Nohab Diesel, Paxman, Pielstick, Ruston & Hornsby, Samsung, Simrad, SKL, Sperry, Stork SW Diesel, Stork Werkspoor, STORK-WARTSILA DIESEL, Sulzer, Volvo Penta, Wartsila, Wartsila Diesel, Westfalia, Wichmann, Woodward, Yanmar, etc.

Cylinder Liner of Diesel Engine

For more information regarding cylinder liner repair, email us at rajshahani@rapowersolutions.com, info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Cylinder liners up to the length of 1500 mm are manufactured by us. We strictly follow the centrifugal process for casting of cylinder liners. The material composition of cylinder liners is maintained strictly as per the manufacturer’s specifications. We develop and manufacture cylinder liners either as per the drawing or as per the sample. The … Continue reading “Cylinder Liners – RA Power Solutions”

Metal Stitching and Thread Repair Inserts – RA Power Solutions

RA Power Solutions was informed by one of our client regarding damage of cam case cover of MAN diesel engine on board a vessel sailing near China. The details including photographs were examined, and it was observed while the cam case cover was broken into pieces the threads on the engine body and the dowel pin were also damaged.

RA Power Solutions deputed their team of technicians on board the vessel, and they executed the repair of engine block, cam case cover sitting area by the following procedure:

The broken bolt which remained inside the thread hole was drilled out.
The damaged threads on cam cover sitting area on entablature was removed by drilling new blind holes, suiting the new M12 Helicoil thread inserts.
Re-tap holes for the new M12 Helicoil thread inserts was done carefully.
New M12 Helicoil thread inserts were installed in the engine frame/ entablature.
The 2 guide pins for the roller guide housing were removed, taking due precaution.
New roller guide housing was installed, with correct M12 hexagon bolts and including the newly introduced 10 mm washers.
After final alignment of the roller guide housing, the bolts were tightened with the correct tightening torque.
Finally, the two ø8 mm guide pinholes were drilled in both roller guide housing and engine frame and afterwards new guide pins were installed.

**repair of Threads on Engine Block Under Process**

**Repair of Thread Hole by Metal Stitching**

The repair of threads by thread repair inserts (helicoil inserts) proved to be successful as the engine is performing satisfactory and no oil leakage is observed. The shipping company owners were asked to replace the complete engine block by the manufacturers as per them it was not possible to execute this kind of repair.

Damaged Thread Hole Under Metal Stitching and Metal Locking

Metal Stitching of Bottom Area of Threaded Hole to Give Extra Strength

The above job was successfully executed by a team of experienced and dedicated team of RA Power Solutions.

The author is Mr. Raj Shahani Managing Director of RA Power Solutions having experience of almost four decades of working on high-capacity diesel engines, turbines and rotary equipments. The company specializes in executing the repairs i.e. metal stitching and metal locking, cold metal stitching engine block, grinding and repair of crankshafts, rebabbitting of bearings, connecting rod reconditioning, and overhauling of Engines which have serious problem resulting to the immense saving to the owners.

Cam Cover Sitting Area of Engine Block After Repair

For more on metal stitching and metal locking, metal stitching of engine block contact us today email us at rajshahani@rapowersolutions.com, info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crankshaft Repair at Low Cost – RA Power Solutions

Crankshaft repair is required in case of following observations:

I) Development of taper and ovality due to continuous running.

II) Seizure of bearing, increase in hardness, and development of crack.

III) Loss of alignment of crankshaft or change in web deflection of crankshaft and many more reasons.

**Damaged Crank Pin of MAN Diesel Engine**

RA Power Solutions Pvt. Ltd. undertakes crankshaft repair. We have team of experienced technicians who undertake crankshaft repair onsite. These days, there is no need of removing the crankshaft from the Engine block and send it to workshop for crankshaft repair.

**Crack Detection of Crankpin Before Grinding**

RA Power Solutions undertakes crankshaft repair, crankshaft grinding and crankshaft polishing onsite without removal of crankshaft from the engine block. The onsite repair of crankshaft not only reduces the downtime but saves considerable cost in terms of removal of crankshaft, packing, transportation etc.The sending of crankshaft to the workshop now is outdated.

**Crankshaft Repair on Board the Vessel**

RA Power Solutions have facility to undertake onsite crankshaft repair from 50 mm to 700 mm in diameter. Having more than 37 years of experience, we have highly skilled in house technicians to execute crankshaft repair. We are most respected and cost-effective company in Asian region. We also manufacture crankshaft repair machine/crankshaft grinding and polishing machine which is lightweight, and easy to operate.

**Crankshaft Grinding of Damaged Crankpin on Board the Vessel**

The range of machine is from 50 mm to 700 mm which is reasonably priced, and we have sold more than 63 machines all over the world. Author of this blog is Raj Shahani, Managing Director of RA Power Solutions Pvt. Ltd. having experience of more than 36 years.

**Crack Detection of Crankpin After Grinding**

Company deals in onsite crankshaft grinding, crankshaft repair, rebabbitting of bearings, metal stitching/metal locking of cast iron, connecting rod repair, etc.

Contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383 for more information.

Crankshaft repair is required in case of following observations: I) Development of taper and ovality due to continuous running. II) Seizure of bearing, increase in hardness, and development of crack. III) Loss of alignment of crankshaft or change in web deflection of crankshaft and many more reasons. RA Power Solutions Pvt. Ltd. undertakes crankshaft repair. … Continue reading “Crankshaft Repair at Low Cost – RA Power Solutions”