Engine Overhauls – VM Ships

Ship Repair

VM Ships: Precision Engine Overhaul Services

At VM Ships, our engineering prowess and highly skilled technicians are dedicated to swiftly and professionally meeting customer requirements, both domestically and internationally. Safety and quality are our paramount concerns, and we take pride in offering comprehensive engine overhaul services that adhere to the highest industry standards.

Our Engine Overhaul Services Include:

Cylinder Head Overhaul: Rigorous inspection and meticulous overhaul for optimal performance.
Pistons & Connecting Rods Inspection and Overhaul: Ensuring precision and reliability.
Liner Removal & Refitting, Honing/Deglazing: Expert handling for enhanced longevity.
Main and Thrust Bearings Inspection: Detailed examination to guarantee reliability.
Fuel Pumps & Injectors Overhaul: Professional services for peak fuel efficiency.
Camshaft & Bush Inspection and Renewal: Ensuring optimal engine functionality.
Crankshaft Deflection Analysis: Precise measurements before and after overhaul.
Charge Air & Lube Oil Coolers Overhaul and Cleaning: Maintaining efficient cooling systems.
Attached LO & FW Pumps Overhaul: Thorough servicing for seamless operation.
Engine Re-assembly/Load Test: Rigorous testing to ensure peak performance.
Specialization in Crankshaft & Entablature Renewal: Expertise in critical components.
Line Bore Check, Line Boring, and Laser Alignment: Precision services for engine alignment.

At VM Ships, we deliver excellence in engine overhauls, backed by a commitment to reliability and longevity. Trust us for your engine maintenance needs, where precision meets performance.

Cylinder Heads and Components

Valve Stems:

VM Ships proudly offers an extensive and comprehensive range of valve stems, meticulously designed to cater to the diverse requirements of engine models, irrespective of their 2-stroke or 4-stroke configurations. We prioritize the pivotal role played by the quality of engine components in augmenting overall performance and extending the intervals between overhauls.

Given the challenging operational environment within the combustion area, where valve stems are deployed, corrosion resistance becomes paramount. To address this concern, we strongly recommend the adoption of Nimonic exhaust valves. These valves not only demonstrate superior resistance to corrosion but also contribute significantly to the overall robustness of the engine system. Furthermore, our commitment to cutting-edge technology is evident in our provision of valve stems coated with a thermal barrier coating. This advanced coating enhances the stems’ resilience against corrosive elements within the combustion chamber, ensuring prolonged service life and optimal performance.

Valve Seats:

In the realm of valve seats, VM Ships excels in delivering hardened face options that exhibit exceptional resistance to acidic corrosion. Our valve seats are available in both cooled and un-cooled versions, showcasing our dedication to versatility in meeting diverse engine specifications.

Utilizing innovative manufacturing techniques, we have successfully addressed and mitigated coolant leak problems associated with valve seats. This not only enhances the reliability of our products but also contributes to the overall efficiency and longevity of the engine system. At VM Ships, we take pride in our commitment to providing detailed, reliable solutions that align with the highest standards of engineering excellence.

Valve Rotators:

VM Ships pioneers advanced valve rotator solutions, featuring Ball and Spring Rotation mechanisms and Turnomats sourced from our esteemed Principal manufacturers in Europe, Japan, and Korea. These precision-engineered components are crafted with meticulous attention to detail, adhering to exact tolerances through optimized designs and the use of premium materials.

The Ball Spring Rotation valve rotator, a pinnacle of engineering sophistication, ensures the uniform distribution of temperature across the valve head. This strategic design prevents localized stress and mitigates premature wear of the valves, thereby optimizing the overall performance and longevity of the engine. On the other hand, Turnomats stand out as the epitome of sophistication and effectiveness in rotator technology. Their deployment significantly enhances the economic performance efficiency of engines, reflecting VM Ships’ commitment to pushing the boundaries of engineering excellence.

In addition to the specified cylinder head spares, VM Ships extends its support in the supply of various critical components, including Valve Springs, Valve Guides, Collets, Cylinder Head Gaskets, and O-rings. These supplementary elements are meticulously selected to complement our overarching objective of providing comprehensive solutions that meet the stringent demands of modern marine engineering across Europe, Japan, and Korea.

Overhaul of Cylinder heads

Inspection and overhaul of Pistons & Connecting rods
Remove & Refit & Honing/Deglazing of Liners
Inspection of Main and Thrust Bearings
Overhaul of Fuel pumps & Injectors
Inspection & renewal of Camshaft & Bush
Crankshaft Deflection Before and after
Overhaul & Cleaning of Charge Air & Lube oil coolers
Overhaul of attached LO & FW pumps
Engine Re-assembly/Load test
We specialize in renewal of Crankshaft & Entablature
We also offer line bore check, line boring and lazer alignment

Fuel Injection Systems Expertise

VM Ships is a premier stockiest and supplier of top-tier fuel injection components, representing respected brands such as Bosch, Woodward, MAN, Wartsila, and Daihatsu. Our extensive inventory comprises critical components, including pump elements, injectors, injector nozzles, and delivery valves. This ensures that our clients have access to a diverse selection of high-quality, precision-engineered solutions for their fuel injection systems.

Pistons & Piston Rings

Pistons Engineering Excellence

VM Ships is the premier supplier of meticulously designed Piston rings, engineered to meet the demands of slow, medium, and high-speed engines. Crafted by our esteemed European and Japanese principals, each with decades of manufacturing expertise, our piston rings exemplify cutting-edge engineering.

Utilizing high-grade materials, such as lamellar graphite cast iron for heavy loads, or nodular graphite cast iron, our piston rings are engineered for optimal performance. They are further enhanced with advanced coatings, including Chromium Ceramic Coatings, metallic plasma spray coatings, or ceramic coatings. These coatings create a fine film of oil between the liner and piston rings, providing exceptional resilience against wear and corrosion.

At VM Ships, we ensure our clients have access to superior, precision-engineered solutions that align with the highest standards of durability and performance in piston technology. Our commitment extends globally, with partnerships that include manufacturers from Europe, Japan, and Korea, assuring our clientele of comprehensive excellence in every product we deliver.

Piston Rings Engineering Excellence

Our meticulously engineered piston rings are crafted to excel in four-stroke engines with bore diameters of up to 250 millimeters. Representing the pinnacle of technology, our product range meets and exceeds the most stringent demands for quality, precision, and application versatility. In the realm of engineering, our piston rings stand as a symbol of innovation and performance, delivering optimal solutions for a diverse array of applications.

Liners & Anti-Polishing Rings: Engineering Excellence

VM Ships engages in close collaboration with manufacturers possessing extensive expertise in the production of heavy-duty liners for diesel and gas engines used in marine and power plants. These liners, meticulously crafted, undergo a centrifugal casting process using diverse grades of cast iron, spanning from 150-500mm, to cater to various engine models. In our pursuit of optimal performance and superior abrasion resistance, the liners supplied by VM Ships are forged from alloyed lamellar graphite cast iron.

While many cylinder liners are pre-honed, we offer additional treatments such as annealing, Chromium and nickel plating, and roller burnishing to further enhance their performance characteristics. Notably, VM Ships sources these liners from reputable manufacturers in Japan, Korea, China, and India, ensuring a global standard of quality. The cylinder liners provided by VM Ships hold approvals from various classification bodies, attesting to their adherence to stringent quality and performance standards. Our dedication to engineering excellence ensures that our clients receive liners and anti-polishing rings that meet the highest industry benchmarks.

Turbocharger Overhauls

VM Ships is home to a team of highly experienced professionals renowned for their expertise in turbocharger repair within the industry. Operating from our advanced turbocharger service center, we are fully equipped to meet the comprehensive requirements of turbocharger repair and refurbishment. Our specialization lies in the precision restoration of intricate components and assemblies associated with critical rotating equipment.

We take pride in our ability to supply spare parts for various turbochargers and cartridges, including those from renowned manufacturers such as ABB-IHI, MAN, Napier, Mitsubishi, and KBB. The range of spares we offer encompasses casings, rotors, labyrinth rings, nozzle rings, and bearings, ensuring that our clients have access to a comprehensive suite of components for their specific turbocharger needs.

Our services include:

Rotor balancing and re-blading
Thermal balancing
Replacement of partition wall sealing strips

Reconditioning of Engine Parts

VM Ships proudly supports a wide variety of primary engines such as MAN, MITSUBISHI, MAK, DEUTZ, AKASAKA, CATERPILLAR, YANMAR, DAIHATSU, HANSHIN, WICHMAN, ROLLS ROYCE-BERGEN, DETROIT & NIIGATA

Engine Overhauls Services