Turbo failed twice – find out why!

TURBO FAILED TWICE – FIND OUT WHY!

A customer called last month looking to replace a turbo for one of their customers, we supplied them with a brand new GENUINE Holset turbocharger which they onsold to their customer.

This turbo also failed.

As a general rule turbos don’t just fail – there is usually an underlying issue, split intercooler orĀ  hoses, oil restriction or an existing engine condition. A lot of the time the turbo is the first to cop the blame but more often than not it is not a turbo issue.

Our customer requested a new turbo again before having the first turbo assessed to see why it had failed, their customer requested this as they could not afford any downtime, however another BRAND NEW GENUINE TURBO failed immediately.

Extra costs and more time off the road.

This immediately rang alarm bells to us – there must be an existing condition that caused both these turbos to fail identically.

Upon inspection of the second failed turbocharger we found the parts to be heat effected from an interrupted or restricted oil supply.

  • heat effect turbo thrust bearing
    Carbonised oil on Thrust Bearing due to interruped oil supply.
  • beat effect turbo thrust bearings
    Turbo Journal bearings – excessive heat damage caused by interrupted oil supply
  • Restricted oil flow on a turbo
    Interrupted Oil Flow Damage on a HX50 Holset Turbo

Due to the fact the first turbocharger failure was not diagnosed the second turbo failed identically to the first.

ALWAYS IDENTIFY THE CAUSE OF FAILURE

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