
Engine repair services for vessels
Nicoverken offers expert engine repair and maintenance services to ensure your fleet operates at its best while navigating worldwide waters for trade, logistics, and industrial support. With decades of experience and a strong understanding of the maritime industry, we provide comprehensive solutions tailored to the needs of shipowners operating in all over the world.

Fuel pumps play a crucial role in the performance and reliability of diesel engines. At Nicoverken, we specialize in the professional overhauling of fuel pumps for marine and industrial applications. By restoring fuel pumps to their correct specifications, we ensure stable fuel delivery, efficient combustion and reliable engine operation.
The governor is a critical component in controlling engine speed and stability. At Nicoverken, we specialize in the professional overhauling of Yanmar governors for marine and industrial diesel engines. Our overhaul process restores accurate speed control, ensuring safe, stable and reliable engine operation under all load conditions.
Cylinder liners play a key role in engine performance, sealing and lubrication. At Nicoverken, we provide precision honing of cylinder liners for marine and industrial diesel engines. Our honing process restores the correct surface finish and geometry, ensuring optimal piston ring sealing and efficient lubrication.
Pistons are subjected to extreme temperatures and mechanical loads during engine operation. At Nicoverken, we specialize in the professional overhauling of pistons for marine and industrial diesel engines. Our piston overhaul services restore correct dimensions, function and reliability, ensuring optimal engine performance and extended component life.
Connecting rods transfer forces between the piston and crankshaft and are subjected to high mechanical loads during engine operation. At Nicoverken, we provide professional connecting rod overhauling for marine and industrial diesel engines. Our overhaul process focuses on restoring correct dimensions, bearing fit and alignment to support reliable engine operation.
The crankshaft is one of the most critical components of a diesel and/ or natural gas engine, transferring power and ensuring smooth engine operation. At Nicoverken, we provide precision crankshaft grinding services for marine and industrial diesel and natural gas engines. Our grinding process restores correct dimensions, surface finish and alignment, ensuring reliable and safe engine performance.
The cylinder head plays a vital role in combustion efficiency, cooling and engine reliability. At Nicoverken, we specialize in the professional overhauling of cylinder heads for marine and industrial diesel engines. Our overhaul process restores correct sealing, valve operation and structural integrity, ensuring optimal engine performance.

Engine repair, explained

On-site overhaul, maintenance & repair
Due to our skilled 24/7 worldwide operating engineers we are able to provide swift and high quality service, keeping your business in operation. We are service agent for Yanmar diesel engines and Zexel governors.
We understand that engine maintenance and repair are critical elements for our clients, whether it's scheduled or unscheduled. That is why you can rely on Nicoverken’s engineering expertise and facilities 24/7, on-site and dockside. To provide swift and consistent service, we have special overhaul sets.........
We are specialized in the overhaul, maintenance and repair of:
- All types of pumps
- Steering gears
- Boilers
- Oil discharge units, including oil discharge motors and other support equipment.
- Auxiliary engines, including attachments i.e. governors, turbo-chargers, fuel equipment, et

In-house maintenance & repair
Over the last decades we have made extensive investments in our in-house workshop, both in terms of machinery as well as highly skilled manpower, enabling us to provide full-scale engine maintenance and repair services.
Besides critical on-site activities we also offer maintenance and repair services in our workshop in Schiedam. Our facilities allow us to apply a wide variety of techniques, including:
- Crankshaft grinding machines
- Machines for reconditioning connecting rods
- Digital video scoop
- Assembly / disassembly and inspection tools
- Hardness measurements, MPI tester (magnaflux) for crack detection
- Lathing equipment
- Ultrasonic cleaning equipment
- Governor test bench and reconditioning (exchange base sales)
- 30 ton hydraulic press
- 2 heavy duty drills, pillar and radial
- Honing liners
- Laser alignment check
- Milling machines
- Line boring equipment

Spare parts & engines
Besides 24/7 on-site and in-house maintenance and repair, Nicoverken also supplies spare parts and engines, enabling us to provide full-service to our customers. We are a trusted service and spare part agent for Yanmar diesel engines and Zexel governors.
Our experienced spare parts team is specialized in, and can provide you with all new Yanmar spare parts, used engines and engine parts. Besides, we can service all sorts of ship engines, depending on your specific needs. We have both new as well as refurbished engines and parts on stock in Schiedam.
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