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Obsessive head skimming?

Discussion in 'Engines' started by julianf, Feb 5, 2019.

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  1. julianf

    julianf Well-Known Member

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    Everyone is always talking about skimming heads. As in the moment one comes off people seem to be on about slicing them.

    Is this just some nonsense, or...?

    I mean, if, for example, a plug tips come off in the head, and it has to be removed from an otherwise sound setup, what's the reason to skim it?
     
  2. EeEk

    EeEk Active Member

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    None....only skim it if its been roasted :)
     
  3. jamesmartin

    jamesmartin Well-Known Member

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    skimming a head should only be done if necessary
     
    Dippypud likes this.
  4. DanClarke

    DanClarke Well-Known Member

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    Banana heads that have been warped by heat are the only real reason to do it (when I were a lad).
    If the head is still flat and true, there's no need.
     
  5. MJI

    MJI Well-Known Member

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    I once had 60 thou skimmed off a head.

    Made 10bhp difference on a rolling road.
     
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