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what does the hockey puck do?

Discussion in 'A3/S3 Forum (8L Chassis)' started by S3 JOHN, Feb 19, 2012.

  1. S3 JOHN
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    S3 JOHN Member

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    hi all

    I carry out the simplify the PCV system and was wondering what does the hockey puck valve do as i can blow through it both ways ?

    Any info would be great [​IMG]
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  2. a3tdi2001
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    a3tdi2001 Member

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    Allows the top end to breathe by seperating the oil mist from the air as it passes through it I think.
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  3. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator

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    My understanding is its basically a restrictor, it controls vacuum pressure in the crankcase by bleeding air thru under heavy vacuum.
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  4. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator

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  5. S3 JOHN
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    S3 JOHN Member

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    Very true i just went straight for the pictures . thanks all for your info.
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