Type your username and password then click on the appropriate section you wish to access.
Click here if your login fails (might occur on certain Apple products)

Subscribe to our newsletter and receive news, invitations and more.
Looking for recon parts?
Our areas of expertise

Marine engine service – repair and overhaul

VMS Group is highly specialized within overhaul and repair of marine diesel engines. Our service engineers are all qualified and skilled in the repair and maintenance of high speed engines, medium speed engines and low speed engines.

Worldwide overhaul, service and trouble-shooting is performed 24/7 all year from both our Danish and Brazilian facilities. All is done with a wide range of tools for on-site work.

For immediate assistance, every day telephone support is part of our service.

In order to minimise costs and operational difficulties, scheduled propulsion service is planned in close cooperation with our customers and we will always offer a quick and cost-effective solution.

Our engine workshop is equipped to perform service and repair of all your engine equipment:

Cylinder covers from high, medium and low speed engines

We are specialized in overhaul of covers from high, medium and low speed engines. The covers are dismantled, cleaned and pressure tested. All parts are measured and reconditioned incl. grinding of valves and seats. Machining to oversize valve seats and grinding of sealing surface is also possible.

Connecting rods

Usually, overhaul of connecting rods includes cleaning, crack testing and tightening the connecting rods together for measuring of the big ends. If the connecting rods are worn, VMS Group possesses the equipment to recondition the small end bush and to machine the big end in case of ovality.


We offer complete overhaul of piston, incl. cleaning, measuring of ring grooves, checked for spots and crack tested

Cylinder liners

Complete overhaul of cylinder liners includes cleaning, honing, grinding/machining of sealing surfaces and complete with measurement reports. All can be done on liners with diameter from 170 to 650 mm.

Fuel equipment

Overhaul of most types of fuel injection pumps and injector valves. Calibration pressure up to 1,500 bars is available.

Pumps and coolers

Overhaul and maintenance of auxiliary equipment for marine engines.

Have a look inside our marine workshop

Excellent service needs excellent spare parts

We have a wide net of suppliers who provide us with spare parts not only for our jobs on the vessels but also for other customers as shipyards, workshops and wholesalers and more.
Read more about our spare parts


For more information, please contact: