There can be many scenarios in which a turbocharger can fail. However, the most common failures can be compiled into two main categories:
Imbalance in the rotating assembly
This causes the assembly to vibrate at high RPM, causing increased wear on the bearings and shaft as well as reducing oil film strength during operation resulting in imminent failure.
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Foreign object damage
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Poor quality components
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Poor balancing standard
Lack of lubrication
- This causes the internal components of the turbocharger to wear at an accelerated rate due to a reduction in oil pressure within the unit, resulting in parts that run dry and hot, causing excess wear and typically resulting in a very noisy, smokey or seized turbocharger.
Common causes:
- Build up / blockage in the oil feed line
- Low oil pressure
- Poor oil quality / incorrect grade
Correct Installation Procedure
In order to ensure your new On Boost Performance turbocharger lives as long as possible under extreme working conditions, a few key steps should be taken upon installation.
Before installing a new turbocharger, remove the turbochargers oil feed pipe from the engine block and inspect it for any build up or debris visually. If in good condition, ensure to flush the pipe thoroughly with spirits such as brake parts cleaner, thinners or alcohol. The procedure can be done with the oil drain pipe, although not as important.
After ensuring the oil feed line is clear, ensure oil comes from the oil feed on the block while turning over the engine with the starter for 5-15 seconds.
The engine oil & engine oil filter should also be changed.
If you have oil flow, you are ready to fit your turbo and enjoy!