What is a foreign object and what causes it?

A foreign object is simply any object that enters the turbocharger through the air inlet or exhaust inlet. When a foreign object enters the turbocharger, its performance will be affected very quickly.


Signs of foreign object damage:

    Noise from the turbo during operation

    Loss of performance

    Chipping of compressor or turbine blades

    Pitting around the compressor inlet

    Pitting on the compressor blades

Causes of foreign object damage:

    Small particles entering through damaged hoses

    If the air filter is damaged (or faulty), of a low quality or missing, objects will be sucked into the air intake

    Debris from a previous turbocharger failure

    Broken engine components, e.g. valves or fragments of damaged piston, injector tips

    Bolts, nuts, washers, rags or other items left in the intake pipe during servicing

Preventing turbo failure caused by a foreign object:

    Make sure air hoses are clear from blockages and other loose objects

    Check that air hoses are intact and in good working condition

    Ensure the air filter is the correct one for the vehicle;

    Ensure no debris or engine fragments remain from the previous turbo failure

    Using new gaskets helps to prevent the possibility of gasket break up and also ensure a perfect seal

    Please note: Never continue to operate a turbocharger with damaged blades as the rotor balance will be affected and this could impact its service life.