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Business Details
15 Years
experience
Emergency
services
Marine Diesel Engine Rebuilding & Repair Services
Cores Worldwide Inc. is a leader in marine diesel engine rebuilding, troubleshooting, and maintenance with over 14 years of specialized expertise. Our team of highly skilled professionals combines decades of industry experience with state-of-the-art facilities to deliver reliable solutions for large bore diesel engines and marine systems. We pride ourselves on our ability to handle complex projects globally, offering services such as emergency repairs, failure analysis, and precision overhauls for gears, clutches, and couplings. Our commitment to quality is reflected in our long-standing relationships with clients across Canada and internationally, supported by a track record of thousands of successful projects.

We maintain rigorous safety and efficiency standards, utilizing advanced equipment and methodologies to ensure optimal performance and client satisfaction. Our open-door policy fosters clear communication, while our partnerships with major engine manufacturers enhance our technical capabilities. Trusted by industry leaders for our professionalism and 24/7 availability, we continue to set benchmarks in marine diesel engine excellence.
Services
Engine Rebuilding Troubleshooting Overhaul Marine Gears In-house Reconditioning Video Bore Scoping
Details
  • Year established: 2011
Highlights and features
  • We offer 60+ combined years of marine diesel engine expertise.
  • Our team expedites global crews for urgent repair needs.
  • We utilize state-of-the-art cleaning and precision equipment.
  • Our engineers received factory training from 9 engine lines.
  • We maintain 24/7 availability for emergency marine services.
What people say
Smooth coordinated job Excellent work Professional competent completion Valuable partner Meets expectations
Update Listing
Services
Engine Rebuilding
We specialize in complete large bore marine diesel engine rebuilds for global clients. Our technicians handle all major manufacturers including Caterpillar, MAN B&W, and Fairbanks Morse. With over 1,000 engines reconditioned in our climate-controlled facility, we ensure precision engineering and compliance with manufacturer standards. Our process includes component inspection, machining, and performance testing.
Troubleshooting
Our 24/7 emergency response team provides rapid fault diagnosis and repair services worldwide. Capable of handling mechanical and electronic system failures, we deploy trained crews to vessels in distress. We also offer root cause analysis and third-party failure assessments, maintaining detailed technical reports for insurance and compliance purposes.
Marine Gears Overhaul
We provide comprehensive inspection and repair services for marine gears, clutches, and couplings from brands like Twin Disc and Voith. Our technicians perform routine maintenance for systems operating between 200-12,000 hours. Services include precision alignment, component replacement, and performance optimization to extend equipment lifespan and prevent operational failures.
In-house Reconditioning
Our 10,000 sq. ft. marine-dedicated facility handles complete engine disassembly and reconditioning. Equipped with specialized cleaning systems and precision machining tools, we maintain dedicated areas for rebuilds, painting, and parts storage. This controlled environment ensures consistent quality for complex projects requiring strict adherence to technical specifications.
Video Bore Scoping
We conduct non-invasive engine inspections using advanced video bore scoping technology. Our certified technicians identify internal wear patterns and component damage across all engine sizes. Combined with laser alignment and deflection analysis, this service provides comprehensive diagnostics for preventive maintenance planning and regulatory compliance.
People
Andrew G. Ryan
Field and Service Manager
Co-founder with 25 years of marine systems expertise. Specializes in troubleshooting complex engine components and developing safe removal methodologies. Oversees all field operations and technical reporting.
Douglas R. Lesbirel
Business Manager
Co-founder offering 30+ years of marine industry experience. Manages business operations and regulatory compliance. Specializes in marine engine application engineering and technical specification development.
Questions
What marine diesel engine brands do you service?
We service all major brands including Caterpillar, MAN B&W, Fairbanks Morse, MAK, and Wärtsilä. Our technicians receive factory training from nine different engine lines.
Do you provide emergency repair services?
Yes, we offer 24/7 emergency response with crews available for global deployment to address critical marine diesel system failures.
Where are your service operations based?
Headquartered in Halifax, Nova Scotia, we serve clients across Canada's East Coast and maintain international project capabilities.
What specialized equipment do you use?
We utilize laser alignment systems, video bore scoping technology, and state-of-the-art machining equipment in our 10,000 sq. ft. climate-controlled facility.
How experienced is your team?
Our management team has 60+ combined years in marine diesel engineering, with technicians specializing in over 12 engine manufacturer specifications.