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Marine Engine Repair | Overhaul & Maintenance of MAN B&W engine | Crankshaft Replacement

RA Power Solutions have been providing marine engine repair, overhaul & maintenance of MAN B&W engine, and crankshaft replacement services for the last four decades. The objective of the company is to provide international standard of maintenance & repair services for diesel engines & diesel generator sets installed on a vessel or in power plants.

We have a huge client base & one can be assured that your all requirements related to diesel engine maintenance and repair services will be in safe hands. The major reason why we stand out as a unique company is that we possess the latest tools, equipment, and measuring instruments which are calibrated periodically as per the class requirement & international standards.

We are giving below detail description of general overhaul & maintenance of MAN B&W engine undertaken recently in Indonesia.

Description:

Dismount, Inspection, and overhaul of the cylinder cover including the fuel and air starting valves. The cylinder covers cooling spaces were also inspected, cleaned, and fitted back with new O-rings.
Dismount and overhaul exhaust valve, renew sealing rings, grind valve spindle, and valve seat.
Pulling of the piston for inspection, cleaning, calibration, and overhaul. Checked for cracks on piston crow by die penetration test. The piston was assembled with new piston rings and O-rings.
Dismount and overhauled stuffing box.
The cylinder liner was cleaned, calibrated, and honed in order to restore the liners running surfaces and remove ovality. This ensured that the piston rings perform better and this will lead to a better overall cylinder condition, compared to if honing had not been done.

Marine Engine Connecting Rods under Reconditioning

Inspection of Bearings while Overhauling of Engine

The cylinder liner cooling spaces were inspected, cleaned, and fitted back with new o- rings and water connectors.
The crosshead bearing was dismount, journal polished and both upper and lower bearing shells renewed.
The connecting rod bearing was dismount, crankpin polished and both upper and lower bearing shells renewed.

The main bearing caps were removed, journal polished and both upper and lower bearing shells renewed.
Measurements of the cross head, connecting rod, and main bearing clearances were taken.
Crankshaft alignment measurement was taken with dial gauge (autolog method).

For your requirement of repair, maintenance and overhaul of Diesel engine and Overhaul & Maintenance of MAN B&W engine you may contact us & will find our services as per the International standards & price-wise lowest in the market.

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, crankshaft, turbines, and rotary equipment. Contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383 for more information.

Cylinder Liners | Cylinder Sleeves | Cylinder Liner Manufacturer | Cylinder Sleeves Manufacturer

Cylinder liners and cylinder sleeves for marine engine, generators, and all applications are manufactured by RA Power Solutions for last 40 years. The process, technology, and quality of liners manufactured by us are far better than the OEM standards. We stand guarantee for the long life of the cylinder liners and this is possible due to the following features of cylinder liner and cylinder sleeves manufactured by us.

Cylinder Liners & Cylinder Sleeves Manufactured for Ruston Engine

Cylinder Liner Manufacturer

We manufacture cylinder liners, cylinder sleeves in gray cast iron with centrifugal process which ensures uniform structured and dense casting. Special alloys are used to increase the wear-resistant properties and also to enhance the lubrication.

New Cylinder Liners & Cylinder Sleeves Ready for Dispatch

Each casting is subject to extensive quality control check prior to final machining which includes MPI for crack detection, visual check for blow hole, pitting, and any casting abnormality.

Cylinder Liner Manufactured for CKD SKODA-1450KVA

Cylinder Liners & Cylinder Sleeves of Diesel Engine Ready for Dispatch

The machining is undertaken on DRDO supported equipments which ensures all the critical dimensions are strictly maintained as per the drawing or a sample.
Final machining and honing of cylinder liners and cylinder sleeves is undertaken on the latest design of the equipments available in the market.
All the quality parameters of honing are strictly maintained.

Each cylinder liner, cylinder sleeve is subject to 100% inspection by our experienced technicians using the calibrated instruments. Inspection reports in detail are prepared and shared with the client. If required heat treatment, phosphating, nitriding, chrome plating, etc. are also done as per the customer requirement.

Cylinder liners can be developed and manufactured from the sample or a drawing provided by the client. We accept small quantities of cylinder liners for development and manufacturing.

We are regularly exporting cylinder liner and cylinder sleeves all over the world of all popular makes of diesel engine like CKD Skoda, 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, Deutz Marine Engine, EMD, Fiat, FUJI, Fuji Diesel, Furuno, Hanshin, Headway, HIMSEN, Holset, Hyundai , 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.

CKD Skoda Engine Spares and Bearings

We are perhaps the largest manufacturer and exporter of CKD Skoda spares including cylinder liners and bearings. The bearings and liners of CKD Skoda all models of engine are available with us in stock and can be supplied all over the world in short notice. We are also the manufacturer of BEZ generator bearings. All the parts of CKD skoda are guaranteed for satisfactory performance and are competitively priced.

The author is Mr. Raj Shahani, Managing Director of RA Power Solutions Pvt. Ltd. He has 40 years of experience in working on large crankshafts, connecting rods, cylinder liners, cylinder sleeves, cylinder liner repair, and Diesel Engines.

For more information on CKD Skoda cylinder liners, SKL engine cylinder liner and cylinder sleeve,metal stitching service provider and CKD Skoda bearings please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Cylinder liners and cylinder sleeves for marine engine, generators, and all applications are manufactured by RA Power Solutions for last 40 years. The process, technology, and quality of liners manufactured by us are far better than the OEM standards. We stand guarantee for the long life of the cylinder liners and this is possible due … Continue reading “Cylinder Liners | Cylinder Sleeves | Cylinder Liner Manufacturer | Cylinder Sleeves Manufacturer”

Lock and Stitch Cast Iron Repair | Metal Surgery | Cracked Engine Block Repair | Repair Cracked Cast Aluminum

RA Power Solutions undertakes the repair of crack or damaged engine components manufactured out of cast steel, repair cracked cast aluminum, cast iron, or aluminum. We follow the process of Metal Stitching & Metal Locking for repair of crack or damaged components. In most cases, the repairs are undertaken on-site without dismantling the major components. This results in the saving of downtime of the plant & money.

Metal Stitching | Metal Locking

RA Power Solutions is a leader in this field of repair of large damaged casting components by Metal stitching & Metal Locking, we offer crack repair services 24/7 through our technicians who are well experienced. Our senior-most technician executing crack repair by metal locking and metal stitching process has 35 years of experience and has a record of executing more than 1500 jobs which are saved from rejection and are performing satisfactorily.

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

The repair of Crack and damaged casting by Metal Locking & Metal Stitching process

RA Power Solutions was developed in late 1930 as a cold option for repair of Crack or damaged cast iron components & equipment. This process of casting crack repair has proved successful as it is cold and stress-free without the generation of any heat. Most of the crack repair jobs undertaken by us, it does not require machining. Our technicians have Indian CDC / Palau CDC which facilitates them to execute the Crack repair even while sailing the vessel this again proves to be of great advantage to the ship owners and the industries.

**Metal Stitching & Metal Locking of Lobe Blower Casing**

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 equipment. The company specializes in executing the repairs i.e. metal stitching/metal locking, grinding and repair of crankshafts, rebabbitting of bearings, Cast Iron Repair, connecting rod reconditioning, overhauling of Engines which have serious problems resulting in the immense saving to the owners.

For more information about metal surgery, engine block repair, metal surgery process, cold metal repair, cast iron stitching, cast iron engine block repair, or broken engine block, engine connecting rods please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

**Broken Suction Bell Mouth of CW Pump**

Metal Stitching & Metal Locking of Suction Bell Mouth of CW Pump Repairing — **Metal Stitching & Metal Locking of Suction Bell Mouth of CW Pump**

RA Power Solutions undertakes the repair of crack or damaged engine components manufactured out of cast steel, repair cracked cast aluminum, cast iron, or aluminum. We follow the process of Metal Stitching & Metal Locking for repair of crack or damaged components. In most cases, the repairs are undertaken on-site without dismantling the major components. … Continue reading “Lock and Stitch Cast Iron Repair | Metal Surgery | Cracked Engine Block Repair | Repair Cracked Cast Aluminum”

Diesel Engine Overhaul | Onsite Diesel Engine Repair | Crankshaft Main Bearing Replacement

RA Power Solutions was informed regarding the failure of three nos Crank pin Bearings of MAN B&W 5L60MC main engine onboard a vessel near South Africa.

RA Power experienced team of technicians boarded the vessel in a short time of 18 hours of receipt of intimation regarding the problem faced by the vessel. Following jobs were executed for overhaul and replacement of crankpin bearings in order to operate the engine satisfactorily after Engine repair and engine overhaul.

DESCRIPTION:

Inspection and overhaul of the cylinder covers, including the fuel and starting valves located in the covers.
The cylinder covers cooling spaces were also inspected, cleaned, and fitted back with new O-rings.
Dismounting, Inspect and overhaul the exhaust valves, renewing the seats, and grinding the valve spindles.
The cylinder liners were cleaned, calibrated, and honed in order to restore the liners running surfaces and remove ovality. This ensured that the piston rings perform better and this will lead to a better overall cylinder condition, compared to if honing had not been done. The cylinder liners cooling spaces were also inspected, cleaned, and fitted back with new o-rings.

Inspection of Engine Spares is in Process

The Crank pin bearing caps were dismounted, and both top and bottom bearing shells renewed.
The Crankshaft Crankpin diameter was checked for the following parameters:
- Visual inspection to check the presence of any Bearing Line marks or rough surface.
- All the Crankpins were calibrated for taper & ovality.
- Hardness was checked and observed within limits.
- MPI was done to check the presence of any crack.
- Crankshaft all pins were polished by an onsite crankshaft grinding machine, removing the bearing line marks and improving the Crank pin surface finish.
- Adjustment of the variable injection timing (VIT).
- The bearing clearances were taken using lead wire.
- Crankshaft alignment measurement was taken with a dial gauge.

**Onsite Repair of Crankpin by Crankshaft Grinding Machine**

Conclusion:

After the replacement of Bearings and jobs described above undertaken at the time of engine overhaul and bearing replacement the engine was tested on the load & performance was observed to be satisfactory.

For more detail on onsite diesel engine repair, crankshaft main bearing replacement, engine overhaul services, marine engine cylinder liners, and engine overhauling. Contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383 for more information.

RA Power Solutions was informed regarding the failure of three nos Crank pin Bearings of MAN B&W 5L60MC main engine onboard a vessel near South Africa. RA Power experienced team of technicians boarded the vessel in a short time of 18 hours of receipt of intimation regarding the problem faced by the vessel. Following jobs … Continue reading “Diesel Engine Overhaul | Onsite Diesel Engine Repair | Crankshaft Main Bearing Replacement”

Thread Repair Insert | Crack Repair Engine Block Cover | Onsite Machining – RA Power Solutions

RA Power undertakes repair of threads and cracks which get damaged due to accident following are advantage

Threads of various parts like engine block, turbine casing, cam block get damaged due to the stress or accident
Damaged threads are repaired by our engineers onsite without dismantling of the parts
The portable, lightweight special-purpose machines are carried to the site for all the operations required for repair of damaged threads.
New inserts are fitted in the damaged threads, maintaining the same dimensions as of originals. Same size of bolts are used.
In case of cracks observed on the threads hole area, which is common due to accident, it is repaired by the metal lock and metal stitching process.
The repairs of damaged threads by using the insert save the part from rejection and saving to the owners.

Engine Block Repair | Onsite Machining | Crack Repair

Serving the diesel power plants and shipping companies for the last four decades, we observed that in spite of the best maintenance protocols and process followed, accidents do take place. We have the history of repairing seriously damaged engine blocks.

Recently in case of Wartsila Engine Both sides of the engine block got damaged measuring about 600 mm * 500 mm . Even the main journal housings got damaged due to accident. The engine was installed on a barge having 6 units of wartsila 12V32 engines.

Following job was done pertaining to engine block repair:-

The complete engine block was subjected to crack detection by MPI test by level 3 qualified technicians.
Main journal housings of engine block were dimensionally checked for taper and ovality was recorded.
The damage to engine block was so serious that we have no option but to cut off the damaged portion of the engine block.
The new casting piece was manufactured with the similar profile of damaged block of wartsila 12V32 and was given original profile by onsite machining. The piece was assembled by metal stitching and metal locking process.
All the main journal housings were corrected by onsite machining, maintaining the main journal housing bore size strictly as per the engine manufacturer’s limits.

The above engine block repair saved client considerable amount and reduced downtime.

Contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383 for more information regarding engine overhauling, lock and stitch cast iron repair.

RA Power undertakes repair of threads and cracks which get damaged due to accident following are advantage Threads of various parts like engine block, turbine casing, cam block get damaged due to the stress or accident Damaged threads are repaired by our engineers onsite without dismantling of the parts The portable, lightweight special-purpose machines are … Continue reading “Thread Repair Insert | Crack Repair Engine Block Cover | Onsite Machining – RA Power Solutions”

Cylinder Liners | Marine Engine Cylinder Liners | Cylinder Liner High Quality

**Cylinder Liners and Cylinder Sleeves of MAN Engine**

In order to ensure the high quality of liners casting, we use a centrifugal process which ensures that there are no blow holes and any abnormalities in the casting of cylinder liners. Contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383 for more information regarding engine cylinder liner and crankshaft repair services.

Cylinder Liners have an important role in the satisfactory performance of the engine. RA Power manufactures and exports cylinder liners of cast iron and Alloy Steel as per the composition described by the manufacturer of the engine. The Cylinder Liners are manufactured up to a length of 1500 mm. In order to ensure the high … Continue reading “Cylinder Liners | Marine Engine Cylinder Liners | Cylinder Liner High Quality”

Metal Stitching | Metal Locking | Metal Stitching of Engine Block | Repair of Cast Iron by Metal Stitching – RA Power Solutions

With the improvement in repair technology now, it is possible to repair the crack in cast iron, steel, or aluminium component by metal stitching and metal locking process. The main feature of repair of crack or damaged casting by metal stitching, metal locking, and metal surgery is that process does not require disassembly of the equipment and taking the crack or damaged part to the workshop.

New Casting Inserted for Repair of Engine Block

RA Power Solutions has the team of experience technicians. They can travel to the site with tools and consumables required for metal stitching and metal locking and undertake the repair. The original profile after crack repair by metal locking and metal stitching is maintained and in most cases, no machining is required. It is scientifically proved that crack portion of the component which is repaired by metal locking and metal stitching process has more tensile strength.

RA Power Solutions with the experience of forty years in this field extends metal locking and metal stitching services for repair of damaged casting. The repair can also be executed while sailing of vessel. We are considered to be lowest in the cost in comparison to our competitors.

Metal Stitching | Repair Cast Iron | Cast Iron Repair

Get your crack or broken components manufactured out of cast iron, cast steel or aluminium repair by metal stitching and metal locking process. RA Power Solutions with experience of more than four decades have successfully repaired thousands of major engine components and components installed in heavy industries all over the world.

The damage to the component may be serious, or the cracks are multiple. RA Power Solutions engineers have the experience, know how and necessary tooling to execute the most complicated and serious damage which takes place due to accidents in cast iron, cast steel and aluminium casting. We have successfully executed a pillar of forging machine weighing 40 tons. This job was done more than 15 years back, and we saved the forging plant imported from Poland from rejection.

For more information on cold metal stitching engine block, cast iron engine block repair, metal stitching surgery, metal stitching engine block, repair cast iron, and metal stitching of engine block please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Metal Stitching & Metal Locking of Engine Block Under Process

Metal Stitching of Engine Block by Special Keys & Locks

High-capacity engine and rotatory equipments have the components made of Cast Iron and Cast Steel. In case of any damage and development of crack in olden times, the option was either to replace the component which used to work out very expensive or to repair it by welding process. Which was not always successful. With … Continue reading “Metal Stitching | Metal Locking | Metal Stitching of Engine Block | Repair of Cast Iron by Metal Stitching – RA Power Solutions”

Connecting Rod Repair | Reconditioning of Connecting Rod – RA Power Solutions

Reconditioned Connecting Rods of MAK Engine in Stock

It is our experience that most of the users are not aware of the fact that in case of the development of taper and ovality, connecting rods can be repaired and high cost of purchase of new connecting rods can be avoided. We undertake repair of connecting rod in case following abnormalities observed:

Damage of serration to some extent.
Damage of small end and replacement of bush.
Development of taper and ovality more than the prescribed limit.

We do not recommend repair of connecting rod in case loss of alignment or cracks are observed. Connecting rods repaired by RA Power Solutions are guaranteed for satisfactory performance. Calibration certificate is issued for each connecting rod after repair.

Reconditioned Connecting Rod of Allen Engine in Stock

RA Power Solutions also maintain a large stock of used connecting rods, which are reconditioned in-house and are available ex-stock. All the important parameters of used connecting rods after reconditioning are maintained as a new one. The cost of reconditioned connecting rod is considerable low in comparison to new connecting rods sold by the engine manufacturers. Owners can save substantial cost by using reconditioned connecting rods.

We export connecting rod of engines like Ruston, Allen, B&W, DAIHATSU, MAN, Mirrlees Blackstone, Niigata, Caterpillar, Deutz, Wartsila, Sulzer, Yanmar, Bergen, Mitsubishi, Cummins, etc. For more information on engine connecting rods, maintenance and repair services, engine block repair, and connecting rod replacement, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Reconditioning of Connecting Rod is in Process

Connecting Rod of Yanmar Engine Ready for Inspection Before Reconditioning

Inspection of Connecting Rod on Board a Vessel

Connecting rods of high-capacity main and auxiliary engines are repaired by RA Power Solutions. We have vast knowledge and experience of four decades with the repairs and resizing of connecting rod strictly as per the manufacturer specifications and tolerances. It is our experience that most of the users are not aware of the fact that … Continue reading “Connecting Rod Repair | Reconditioning of Connecting Rod – RA Power Solutions”

Cylinder Liners/Cylinder Sleeves of Diesel and Marine Engine – RA Power Solutions

In the case of diesel engines, cylinder liners as the name describe from the cylindrical space in which the piston reciprocates.

The cylinder liners and cylinder sleeves used in high-capacity diesel engines, marine engines, and other applications have far superior material in comparison to the cylindrical block of the diesel engine.

**Mirrlees Blackstone Engine Cylinder Liners/Cylinder Sleeves**

RA Power Solutions understands the importance of cylinder liner application and manufactures the cylinder liners having following features:

The cylinder liners manufactured are of alloyed cast iron with composition of chromium, vanadium, and molybdenum. The percentage varies according to the application of the cylinder liner.
Cylinder liner of cast iron manufactured by RA Power Solutions contains graphite, which is considered to have good lubricant properties.
The alloying elements used at the time of casting of cylinder liner resist corrosion and improve the wear resistance at high temperatures.
The cylinder liners are cast by a centrifugal system, which ensures dense and blows hole-free casting.
The cylinder liner manufactured by RA Power Solutions are high wear resistance having good thermal conductivity and internal damping properties.
The cost of the cylinder liners is considerably low in comparison to the cylinder liners supplied by the manufacturers of the engines. All cylinder liners stand to guarantee satisfactory performance.

RA Power Solutions manufactures and exports the following cylinder liners. We can develop a new range of cylinder liners as per the sample and drawing.

We manufacture and export cylinder liners for following engine make:

CKD Skoda (All models of Engine), Ruston, Allen, B&W, DAIHATSU, MAN, Mirrlees Blackstone, Niigata, Caterpillar, Deutz, Wartsila, Sulzer, Yanmar, Bergen, Mitsubishi and Cummins etc.

**Reconditioned Cylinder Liners Ready for Dispatch**

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

In the case of diesel engines, cylinder liners as the name describe from the cylindrical space in which the piston reciprocates. The cylinder liners and cylinder sleeves used in high-capacity diesel engines, marine engines, and other applications have far superior material in comparison to the cylindrical block of the diesel engine. RA Power Solutions understands … Continue reading “Cylinder Liners/Cylinder Sleeves of Diesel and Marine Engine – RA Power Solutions”

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”