Engine Repair Services

40+ Years of Expertise

Precision engineering for critical industries.

Fast, Reliable Service

Minimising downtime, maximising performance.

Official MAN Partner

Trusted for expert engine servicing.

Your Experts in Engine Performance and Reliability

At STM Engineering, we understand the critical importance of engine performance for sectors such as marine, generation, transportation, industrial manufacturing, agriculture, and energy. With four decades of specialised experience, our skilled engineers are equipped to handle the servicing, overhaul, and repair of a wide range of engine types and sizes.

Comprehensive Engine Repair Solutions

High-Speed Engines

We service high-speed engines up to 2500 rpm with bores up to 150mm, ideal for applications demanding quick response and high power output.

Medium-Speed Engines

Our expertise extends to medium-speed engines from 150mm to 430mm bore, operating up to 1000 rpm. We offer full-service solutions for a variety of makes and models, ensuring optimal performance in marine, generation and industrial environments.

Services include:

Complete engine overhauls
Parts supply and replacement
Detailed inspections and reporting
In-depth overhauls of cylinder heads, pistons, connecting rods, and cylinder liners
Main bearing exchanges and crankshaft refurbishments

Slow-Speed Engines

Specialised in marine and heavy industrial applications, our slow-speed engine services are designed to extend the lifespan and enhance the efficiency of large engines with bores ranging from 350mm to 1000mm.

Services include:

Unit and component overhauls
Cylinder head, piston, and bearing work
Seal replacements and liner exchanges

Advanced Diagnostic and Repair Technologies:

Our facilities are equipped with state-of-the-art diagnostic tools that allow us to perform precise inspections and adjustments. From crankshaft grinding and polishing to cylinder liner refurbishment and honing, every service is performed with meticulous attention to detail. We also conduct advanced pressure testing and relief valve overhauls to ensure that all engines meet operational standards.

On-Site and In-Shop Flexibility:

Whether you need on-site repairs at remote locations or prefer to have work performed at our workshops in Great Yarmouth and the North East, we provide flexible solutions tailored to your specific needs. Our mobile units are capable of performing complex repairs and overhauls on-site, minimising downtime and disruption to your operations.

Our Services

Work With Us

Get in touch with our friendly team with your enquiry today.