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GVR-4 Rebuild TD05 16G problem

Posted by galant_martin, Aug 13, 2019

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  1. galant_martin

    galant_martin Probationary Member

    9
    2
    Joined Aug 15, 2013
    Austria, Europe
    Hello

    i just bought an turbo and had to replace the compressor wheel, turbine wheel &shaft and the bearings. Bought all parts balanced and used the old locknut, I used lube to assembly it but now if i press on the any of both wheels i can feel it moves in/out. Very minimal but i can feel it. i have no feeler gauges, i would say its not even an half millimeter or 0,02". It has minimal lateral shaft play but i read its normal without oil pressure.

    I never rebuild a turbo befor so i dont know, is that normal or did i anything wrong?

    Thank's
     
  2. Steve93Talon

    Steve93Talon Proven Member

    1,442
    89
    Joined Jan 20, 2005
    Philly Burbs, Pennsylvania
    Did you replace the thrust collar/plate and bearing or just the shaft bearings?
     

    Drag Race Build 705  24

    1991 Eagle Talon TSi AWD
    369.5 whp · 403.2 lb/ft · 1G DSM

    2K  7

    1993 Eagle Talon TSi
    11.784 @ 115.120 · 1G DSM
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  3. galant_martin

    galant_martin Probationary Member

    9
    2
    Joined Aug 15, 2013
    Austria, Europe
    Everything is new.
     
  4. Steve93Talon

    Steve93Talon Proven Member

    1,442
    89
    Joined Jan 20, 2005
    Philly Burbs, Pennsylvania
    Then it sounds like an incorrectly machined turbine shaft or thrust part. Take it apart and assemble the thrust parts to the wheels/shaft and see how much play there is.
     

    Drag Race Build 705  24

    1991 Eagle Talon TSi AWD
    369.5 whp · 403.2 lb/ft · 1G DSM

    2K  7

    1993 Eagle Talon TSi
    11.784 @ 115.120 · 1G DSM
    Loading...
  5. galant_martin

    galant_martin Probationary Member

    9
    2
    Joined Aug 15, 2013
    Austria, Europe
    I noticed a thing while I assembled it. If I put the turbine shaft in, the thick part of the shaft comes out a little bit of the bearing under the thrust spacer. So the thrust spacer doesn’t lay flat on the brass bearing. If I insert the thrust plate and press it flat in the Char the shaft goes out a little bit.

    I forgot to make pictures but I try to make them today. It was late yesterday..
     

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