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Turbo fin's

Discussion in 'A3/S3 Forum (8L Chassis)' started by temp, Dec 9, 2013.

  1. temp

    temp Member

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    My turbo fin's move only a little in and out with NO play up and down is this play in the turbo acceptable or is it knackered.
     
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  3. g60leigh

    g60leigh Well-Known Member

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    I understand that a little side to side movement is fine. Slack is taken up when the oil flows past the bearings.
     
  4. desertstorm

    desertstorm Moderator
    Staff Member Moderator VCDS Map User quattro Audi A4 Audi Avant Owner Group TDi

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    It all depends what kind of bearings are in the turbo. Most have sleeve bearings which use the hydrodynamic properties of oil to produce a bearing surface.These will have a certain amount of play side to side but the turbine or compressor shoudn't be able to touch the housing any where. There should be very little axial movement ( in and out) on the shaft.Some turbo's use bearings with ceramic ball or roller elements, these should have no appreciable movement in either direction.Karl.
     
  5. s3dave

    s3dave TFSI Hybrid
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    As said journal bearings have a small bit of play up down, no in out play should be really there..
     

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