Here our engineers list some pictures of failed turbocharger parts, usually an experienced engineer can tell the reasons according to those parts.
![](http://gabb-tech.com/wp-content/uploads/broken-compressor-wheel-blade.jpg)
1. Outside Impurities
Impurities, like small rocks entered the compressor house from Air Filter.
So when you install a new turbo, it’s essential to clear or replace the Air Filter.
![Journal bearing, thrust bearing](http://gabb-tech.com/wp-content/uploads/journal-bearing.jpg)
2. Low Grade Oil
Low grade oil or fake oil, contain too much impurities. After turbo worked a period time, those small parts like Shaft and Thrust bearing will abrase with each other.
![](http://gabb-tech.com/wp-content/uploads/shaft-blue-color.jpg)
3. Turbine Shaft’s cokes
Here you can see the turbine shaft take a lot coke on it.
![](http://gabb-tech.com/wp-content/uploads/blue-color.jpg)
4. Insufficient Oil Supply
Insufficient Oil Supply will make Turbine Shaft take a little blue color.
If you want to consult some technical questions, please contact our engineer, Kevin@gabb-tech.com