Marine Fuel Injection Pump Repair, Overhaul & Calibration

Specialist Workshop for Mechanical Ship-Engine Fuel Injection Systems - Main Propulsion, Auxiliary Engines and Generator Sets

Einspritzpumpen Manufaktur NRW is an independent specialist workshop in Germany for the inspection, overhaul, repair, reconstruction and test-bench calibration of mechanical marine fuel-injection equipment. We support shipowners, shipyards, engine rebuilders, marine service companies, technical superintendents and purchasing departments in Europe and worldwide.

Our marine service is not limited to one pump manufacturer or one engine family. Depending on pump design, condition, technical documentation, spare-parts availability and suitable test-bench adaptation, we assess, overhaul, repair and calibrate mechanical fuel injection pumps from Bosch, LÓrange (also searched as L'Orange), Kugelfischer and other manufacturers. We accept enquiries for mechanical fuel-injection equipment used on all categories of marine engines operating either at fixed speed or across a variable speed range, including main propulsion, auxiliary, generator and other shipboard duties. Common Rail systems are not part of this service scope.

Marine Injection Pumps from Bosch, LÓrange, Kugelfischer and Other Manufacturers

Our marine programme intentionally goes beyond one pump brand. We evaluate mechanical inline pumps, individual pump systems and other mechanically controlled injection equipment from Bosch, LÓrange, Kugelfischer and additional manufacturers. Historical spelling variants such as L'Orange are also relevant for international searches and part identification.

Technical acceptance is always based on the actual pump. Pump construction, size, drive arrangement, condition, available data, spare parts and suitable test-bench adaptation determine what can be repaired and calibrated responsibly.

Variable-Speed Main Propulsion Engines

Main-propulsion engines can operate across a broad speed and load range. Their injection equipment may therefore need to be assessed at more than one operating point. Where verified technical data are available, test planning considers the relevant speed range, delivery behaviour and mechanical control characteristics.

Fixed-Speed Auxiliary and Generator Engines

Auxiliary engines and generating sets often work at a defined rated speed. Stable, repeatable injection at the relevant operating point is therefore particularly important. The engine duty is documented before calibration so that the pump is not treated as a generic unit.

Our Core Marine Services

marine fuel injection pump repair and complete overhaul
mechanical inspection, measurement and technical condition assessment
Bosch EPS calibration and specialised large-pump test-bench work
injector and injection-nozzle inspection and overhaul
large inline pump and tandem-system testing
spare-parts sourcing and historical cross-reference research
obsolescence management and reverse engineering of suitable mechanical components
dry-dock and planned-maintenance project support
international repair-return and shipping coordination
B2B workshop support for shipyards and engine rebuilders

Choose the Right Marine Service Page

Marine Diesel Injector & Injection Nozzle Overhaul

For injector testing, nozzle-holder assessment and coordinated pump-and-injector work.

Deutz 528 & 628 Marine Fuel Injection Systems

For Deutz 528/628 pump identification, overhaul and calibration, including SBV6M628 through SBV16M628 applications.

Marine Fuel Injection Spare Parts & Obsolescence Management

For discontinued parts, New Old Stock research, reconditioning and reverse engineering when original supply has ended.

Fuel Injection Overhaul for Dry Dock & Planned Maintenance

For superintendents and shipyards planning component overhaul around maintenance windows, reinstallation and sailing dates.

MWM / Deutz Marine Fuel Injection Systems

For TBD604, TBD620, TCD2020, TBD440/441, 528/628 and other MWM/Deutz mechanical injection applications.

Marine Fuel Injection Troubleshooting

For smoke, uneven exhaust temperatures, poor starting, unstable running, reduced power and other symptoms where the true cause has not yet been isolated.

International Repair Shipping & Customs

For customers sending mechanical injection equipment to Germany from outside the region, including packing and repair-return preparation.

Fuel Injection Services for Shipyards & Marine Engine Rebuilders

For B2B partners requiring a specialist injection workshop in the background while retaining their own customer relationship.

Marine Injection Pump Testing & Calibration Documentation

For customers who want to understand the test-bench process, available measurement methods and final workshop documentation.

Marine Fuel Injection Case Studies

For documented technical projects, including the overhaul and combined 16-cylinder verification of two Bosch P10 pumps from a TBD620 V16 application.

Selected MWM / Deutz Marine Expertise

Our established large-engine work includes mechanical fuel-injection systems for MWM / Deutz engine families such as TBD604, TBD620, TCD2020, TBD440, TBD441, 528, 628 and other historical applications. Bosch P9 and P10 systems, LÓrange equipment and large tandem pump arrangements form an important part of this work, while each pump is still identified individually before repair.

Dedicated 16-Cylinder Test-Bench Capability

For particularly large mechanical injection pumps and suitable coupled systems, our dedicated equipment enables direct volumetric comparison using graduated measuring glasses. This allows large multi-cylinder pump assemblies to be evaluated beyond the physical limits of ordinary diesel test benches.

International Technical Enquiries

Fuel injection pumps and injectors can be sent to our workshop in Germany after prior technical acceptance. Before shipping, send the complete pump identification, engine data, application and photographs. This is especially important for large, rare or obsolete systems where fixtures, technical data and spare-parts availability must be reviewed in advance.

What We Need for an Initial Marine Assessment

clear photographs of the complete injection equipment and all identification plates
pump manufacturer, complete pump type and all visible part or reference numbers
engine manufacturer and exact engine designation
number of cylinders, rated power and rated speed
whether the engine operates at fixed speed or over a variable speed range
marine application: main propulsion, auxiliary engine, generator set or other duty
direction of rotation, if known
description of the fault, operating symptoms and previous repair history
available test sheets, engine acceptance data, manuals or calibration information

Mechanical Fuel Injection Only

Our marine specialisation is mechanical and conventional fuel-injection technology for long-life diesel engines. Common Rail systems are outside this service scope.

Request a Marine Fuel-Injection Assessment

Send us the pump and engine information together with your project objective - repair after failure, preventive overhaul, dry-dock work, injector service, spare-parts problem or complete system assessment. We will review the application and advise on the next technical step.