Calibration ensures the diesel pump delivers the correct fuel pressure and injection timing according to manufacturer specifications.

Even small deviations can affect engine performance, fuel consumption, starting, and long-term reliability. Using specialised diesel injection test benches and calibration equipment, we accurately test and calibrate pumps to manufacturer specifications, ensuring precise fuel delivery and consistent performance — rather than relying on road testing alone.

In most cases, yes. Reconditioning a diesel pump is often significantly more cost-effective than replacing it with a new unit, particularly with high-pressure common rail systems, where replacement costs can be substantial.

Before any repairs are carried out, we perform a full assessment and provide honest feedback on whether refurbishment is a viable and reliable option for your pump.

Common signs of a failing diesel pump include difficulty starting, loss of power, rough or uneven idling, diesel leaks, and increased fuel consumption.

However, these symptoms can also be caused by injector, turbo, or other diesel system faults. We recommend a proper diagnostic assessment before replacing or repairing components to ensure the correct fault is identified.

Proper diesel pump reconditioning requires the pump to be removed and tested on specialised diesel injection test equipment. This is the only accurate way to measure fuel pressure, delivery volume, and injection timing to manufacturer specifications.

We can handle the removal and refitting in our workshop, or customers and workshops are welcome to courier pumps directly to JEG Diesel for testing and repair.

Turnaround time depends on the pump type, extent of repairs required, and parts availability. Once the pump has been assessed, we’ll provide a realistic timeframe before any work begins.

We understand that downtime matters, especially for workshops, fleet vehicles, and commercial applications, and always aim to complete repairs as efficiently as possible. We also offer refurbished exchange units on selected applications, which can significantly reduce turnaround time.

If timing is critical, let us know and we’ll do our best to accommodate your requirements.

Yes. JEG Diesel repairs and refurbishes diesel pumps across a wide range of applications, including passenger vehicles, light commercial vehicles, trucks, construction and agricultural equipment, generators, and marine diesel engines.