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Shaft play on FP HTA Green?

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Old Sep 20, 2010 | 01:50 PM
  #1  
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Shaft play on FP HTA Green?

I bought a new FP green and it has some shaft play on it... almost as much as my old stock evo8 turbo.. Do you guys think that it's normal? Any shaft play on your FP green/red/black??
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Old Sep 20, 2010 | 02:04 PM
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It's normal for it to have some shaft play...once it's full with oil it will have less play.
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Old Sep 20, 2010 | 06:36 PM
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Q. The shaft in my turbo feels loose. How much freeplay should I have?
A. While this specification does vary from one brand to another and rule of thumb is less than .030" radial freeplay and less that .002" axial freeplay.
This amount of freeplay is required to allow the bearings to "float" in a pressurized film of oil while the engine is running. The flow of oil through the clearance around the bearings is what helps the bearings stay cool. This oil film around the bearings also help dampen vibrations that occur to the rotating assembly as it moves through it range of RPM. Ball bearing turbochargers do not have this pressurized film of oil around the bearings; this is why they are somewhat more noisy than floating journal bearing turbos.

http://store.forcedperformance.net/m...creen=Info_FAQ

do some research
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