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AEB bore tolerances?

Oranoco Nov 7, 2016

  1. Oranoco

    Oranoco Registered User

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    The motor is coming apart quickly now but we are concerned at the amount of movement the piston has in the bore. Anybody know what the tolerances are as a reborn and new pistons will add a chunk.
     
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  3. aragorn

    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    mine rocked about too.

    Manual says this:

    Honing dimension
    (in mm)
    Piston Ø Cylinder bore Ø
    80.975 81.010

    It also says "Dimensions not including coating (thickness 0.02 mm). The coating will wear down in service." regarding the piston diameter.
     
    Oranoco likes this.
  4. Oranoco

    Oranoco Registered User

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    Thank you
     
  5. aragorn

    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    Also, those are the figures for assembly. I'm not sure what the wear limit is though.
     

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