Planned maintenance carried out on board by marine diesel specialists — service intervals, oil and filter work, injector and valve service, cooling and fuel systems. Based in the Netherlands, travelling to vessels throughout Europe and worldwide on request.
Almost every emergency callout we attend has a maintenance story behind it: an injector that was overdue, a raw water pump that had been weeping for a season, coolant that was never tested. Marine diesel engines are extremely tolerant of hard work and extremely intolerant of neglect. Servicing them on time, with the right measurements recorded, is what keeps an engine reaching 20,000 hours instead of surprising you at 8,000.
We carry out manufacturer-interval maintenance on marine main engines and auxiliaries, on board and on your schedule, anywhere in Europe. Every visit leaves a record behind: readings, parts used, wear findings, and what to watch before the next interval.
| Interval | Typical work |
|---|---|
| 250 – 500 h | Oil and filter change, fuel and air filters, coolant test, belt and hose inspection, visual leak check, alarm test, logged readings. |
| 1,000 – 2,000 h | Valve clearance adjustment, injector inspection or replacement, turbocharger inspection, crankcase breather, raw water pump and impeller, anode renewal, heat exchanger check. |
| 3,000 – 6,000 h | Injection equipment overhaul, cooler cleaning and pressure testing, exhaust system inspection, bearing and running-gear condition assessment, alignment check. |
| 6,000 – 12,000 h | Top-end or full overhaul planning, cylinder head reconditioning, liner and piston assessment. See engine overhaul. |
We are brought in by chief engineers who want a specialist for the diesel scope, by yacht management companies covering several vessels, by shipyards during refit and warranty periods, and by commercial operators who cannot afford unplanned downtime. Work is quoted per scope, invoiced clearly, and documented per vessel so that the next engineer inherits a complete history.
Servicing is available on Caterpillar / CAT, Cummins, MAN and MTU engines, and on the generator sets built around them. We are independent and not an authorised dealer of any manufacturer.
Northern Europe — Netherlands, Belgium, Germany, Denmark and the UK — and the Mediterranean, including Palma de Mallorca, Barcelona, the Côte d'Azur, Italy, Malta, Croatia, Greece and Turkey. Also the Atlantic coast of Spain and Portugal, and further afield on request. Full detail on the service areas page.
Follow the manufacturer interval for the specific engine and duty rating — commonly oil and filters every 250 to 500 hours, valve and injector attention around 1,000 to 2,000 hours, and major work between 6,000 and 12,000 hours. Engines that sit idle for months need calendar-based service as well as hour-based service.
Yes, and it is often the most efficient time. We coordinate with the yard schedule so engine work runs alongside other trades instead of blocking them.
Every visit produces a per-vessel record: measurements, parts fitted, wear findings and recommendations. It is written to be handed straight to an owner, manager or surveyor.
Yes. We start with a condition assessment so that we know what we are inheriting, then set out a maintenance plan from that baseline.
Yes — auxiliary and emergency generator sets are serviced on the same visit wherever possible. See our generator service page.
Send the details below and you will hear back from an engineer, not a call centre. For a vessel that is stranded or on a tight departure slot, call +31 6 20743967 or message us on WhatsApp.
Send the engine types, running hours and the window you have available. You get a scoped quotation and a date — not an open-ended day rate.
On-site fault diagnosis and repair when something is already wrong.
→ Read more GeneratorsAuxiliary and emergency gensets: service, faults and load testing.
→ Read more EnginesCAT, Cummins, MAN and MTU experience, described honestly.
→ Read more