Metal Stitching | Metal Locking | Metal Stitching of Engine Block | Repair of Cast Iron by Metal Stitching

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 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 work shop.

New Casting Inserted for Repair of Engine Block
New Casting Inserted for Repair of Engine Block
Damage Area of Engine Block
Damage Area 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.

 

For more information, please email us on info@rapowersolutions.com or call us on +91-9582647131

Metal Stitching of Engine Block by Special Keys & Locks
Metal Stitching of Engine Block by Special Keys & Locks
Metal Stitching & Metal Locking of Engine Block Under Process
Metal Stitching & Metal Locking of Engine Block Under Process

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. … Continue reading “Metal Stitching | Metal Locking | Metal Stitching of Engine Block | Repair of Cast Iron by Metal Stitching”

Metal locking of Engine Block by Experienced Technicians

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 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 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 in Low Price, email us your query on info@rapowersolutions.com

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 9 months. RA Power Solutions technicians have successfully undertaken the repair of damaged engine … Continue reading “Metal locking of Engine Block by Experienced Technicians”

Metal Stitching and Thread Repair Inserts

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 in to pieces the threads on the engine body and the dowel pin were also damaged.

Cracked Housing of Engine Block
Cracked Housing of Engine Block
Broken Area
Broken Area
Damaged Upper Threads
Damaged Upper Threads

 

 

 

 

 

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 following procedure:

I) The broken bolt which remained  inside the thread hole was drilled out.

II) The damaged threads on cam cover sitting area on entablature was removed by drilling new blind holes, suiting the new M12 Helicoil thread inserts.

III) Re-tap holes for the new M12 Helicoil thread inserts was done carefully.

IV) New M12 Helicoil thread inserts were installed in the engine frame/ entablature.

V) The 2 guide pins for the roller guide housing were removed taking due precaution.

VI) New roller guide housing was installed, with correct M12 hexagon bolts  and including the newly introduced 10 mm washers.

VII) After final alignment of the roller guide housing, the bolts were  tightened with the correct tightening torque.

VIII) Finally the two ø8 mm guide pin holes were drilled in both roller guide housing and engine frame and afterwards newguide pins were installed

repair of Threads on Engine Block Under Process
repair of Threads on Engine Block Under Process
Repair of Thread Hole by Metal Stitching
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 repairs.

Damaged Thread Hole Under Metal Stitching and Metal Locking
Damaged Thread Hole Under Metal Stitching and Metal Locking
Metal Stitching of Bottom Area of Threaded Hole to Give Extra Strength
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.

Cam Cover Sitting Area of Engine Block After Repair
Cam Cover Sitting Area of Engine Block After Repair

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/metal locking, grinding and repair of crank shafts, rebabbitting of bearings, connecting rod reconditioning, overhauling of Engines which have serious problem  resulting to the immense saving to the owners.

Email Us on rajshahani@rapowersolutions.com, info@rapowersolutions.com

Phone: +91-124-4378292
+91-9213604692

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 in to pieces the threads on the engine body and the … Continue reading “Metal Stitching and Thread Repair Inserts”

Cast Iron Crack Repair by Metal Stitching Process

Cast iron crack repair by metal stitching and metal locking process is highly recommended. Metal stitching process for repairing casting is widely use, accepted in the industry and more successful process for repairing cracks in cast iron.

Broken cast iron pieces can also be replaced by new piece of casting undertaking metal locking. This technology is as old as introduction of cast iron casting in industry.

Insertion of Casting Piece in Engine Block
Insertion of Casting Piece in Engine Block
Metal Stitching of Jenbacher Engine Block in Process
Metal Stitching of Jenbacher Engine Block in Process

 

 

 

 

 

 

 

Metal keys and metal locks are used to undertake crack repair in cast iron casting.

Metal keys and Metal Locks are used in Metal Stitching/Locking Process
  Metal keys and Metal Locks used in Metal Stitching/Locking Process

RA Power solutions Pvt. Ltd. has team of trained technicians who undertake metal stitching of broken and crack casting onsite. Necessary tools, consumables and new piece of casting if required are taken to the site and crack repair is executed. There is no requirement for disassembly of the equipment or transporting it to the repair workshop as crack repair is done onsite.

Metal Stitching Done in Broken Area of Generator
Metal Stitching Done in Broken Area of Generator

It is proved that repair of crack casting by metal stitching process rather enhances the strength of the area after crack repair by the metal stitching is done. We execute crack repairs on board the vessel, power plants all over the world.

Cast iron crack repair by metal stitching and metal locking process is highly recommended. Metal stitching process for repairing casting is widely use, accepted in the industry and more successful process for repairing cracks in cast iron. Broken cast iron pieces can also be replaced by new piece of casting undertaking metal locking. This technology … Continue reading “Cast Iron Crack Repair by Metal Stitching Process”