Allowed piston ring gap?

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  • Thuppu
    S2Forum Freak
    • Sep 2010
    • 4115
    • Country: Finland

    #31
    Yes you're right. Why do we even need more than a stock engine can give, max speedlimits here are 120km/h..?

    Ok, we get totally OT, sorry for that.

    Audi UrS4 Avant 2.5 20vt - twincharged - Project
    Audi 80q B4 Sedan 2.2 20vt - Daily user
    BMW 320d Touring e91 M-Sport - Daily user
    BMW 740iA e38 - Project

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    • sailaz
      S2Forum Maniac
      • Oct 2009
      • 647
      • Country: United Nations

      #32
      Originally posted by UrS4boy

      Check out this pdf: http://s2-audi.co.uk/workshop/aan/aan.pdf

      Go to page 36/93 and look at the figure in section 13-35

      Piston ring gap new = 0.15 to 0.35 mm; Wear Limit = 1.0 mm
      hmmmm, top ring ? 2nd ring ? should be specified which one and how much, no ?

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