Common Rail Diesel Injector Leak-Off Tester TSX TOOL

This kit provides simultaneous comparative measurements on up to 6 injectors, allowing abnormal variations to be identified quickly and accurately. Unlike home-made methods, each adapter is specific to Bosch, Siemens, Delphi and Denso, minimising leaks and connection errors. In addition, its calibrated measuring cups (94 ml) offer better repeatability than improvised solutions, making reliable diagnostics easier and avoiding fuel spills outside controlled containers.

The set includes polypropylene measuring cups and bottles, flexible PVC hoses and technical plastic adapters. These materials are resistant to Diesel fuel and cleaning with mild soapy solutions. The support bar is made from anodised aluminium to reduce corrosion. It is recommended to empty and clean the plastic parts after each use to extend their service life; the set is designed for multiple cycles without significant functional degradation under standard workshop use.

With the engine stopped and cold, disconnect the injector return lines and fit the appropriate adapters (state the brand of each injector). Secure the aluminium bar over the engine bay and hang the bottles. Connect the hoses and check for leaks. Start the engine and observe the fill levels: uneven readings indicate possible faults. Stop the engine before dismantling, using gloves to avoid contact with Diesel. Always follow safety recommendations due to the flammable risk.

This manual model stands out for its simplicity, portability (no electricity required) and low maintenance, allowing effective diagnosis in the workshop or in the field. Digital/sensor-based systems offer absolute precision (millimetre-level resolution and electronic data logging), but require expensive equipment and periodic calibration. For diagnosing relative imbalances between injectors in engines up to 6 cylinders, the practical difference is minimal; absolute flow measurement or complex analysis is only achieved with a test bench.

It is used to measure the excess fuel return flow in common rail diesel injectors, helping detect faulty or problematic injectors.

It is compatible with Bosch, Siemens, Denso and Delphi injectors, thanks to its specific adapters.

Up to 6 injectors can be tested at the same time, ideal for engines with up to 6 cylinders.

It includes 6 measuring bottles, 6 measuring cups with hoses, 24 adapters for different brands, an aluminium bar with hook and a plastic transport case.

No, the case colour may vary between blue or red.