http://youtube.com/watch?v=Y_nNBARfRG8



JUST pulled it out of the box. Brand SPANKING new. Shouldn't that baby be tight as all heck?


EDIT: Pulled from Forced Performance

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.



JP

 

Looks like the wheel hits the housing. I would send it back. It will tighten up with oil pressure though.

 

that looks a bit excessive to me. Maybe if you are running gear oil for engine oil it'll work ok.

 

I'm going to get some feeler gauges and check real quick, but I'm not 100% it's hitting the housing. I'll check.


My rebuilt turbo from Blaast I just sold was tight, zero play in it and now this brand new one waves at me.


JP

 

Right, I can understand some and would be cool with it, but that's a TON of play to me especially on a new turbo.


JP

 

Checked with feeler gauges and pushed all the way to one side it's snug at about .004 and all the way out it can fit but barely a .007 shim. So play is around .003.


I checked with it pushed all the way in to one side and rotated it and it appears that it's not hitting the housing at any point of the wheel. No drag or catch and I can see a slight gap between the wheel and housing.


JP

 

My turbo did that same thing when I got it.....
but it works great


what kind is it?

 

Garrett/Honeywell/AiResearch T3/T04E 57-Trim .60/.48


Still have shaft play?


JP

 

Yeah but allot less than it did before i used it......
i guess the oil stiffend it up a lil...
but it works great...spools fast and all

 

Samson, that's is completely normal.


Run it.