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12V or 24V

Discussion in 'Classic Audi Forum' started by Corne, Jul 6, 2006.

  1. Corne
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    Corne New Member

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    [Jul 6, 2006]
    Hallo can anyone tell me if the 2.8l V6 1993 Audi 100 engine is 12Valve or 24 Valve . I took off the tappet cover and I only saw one over head cam. but when I went to the agents to get spark plugs and they asked if it were a 24 valve engine
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  3. jdp1962
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    jdp1962 Grumpy Old Moderator Staff Member Moderator

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    [Jul 6, 2006]
    If it's a 1993 model, I reckon it's 12-valve. The switch to multi-valve was around 1997, IIRC.

    By the way, the multi-valve is not 24-valve, it's 30, as in 5 valves per cylinder. They're easily identifiable, as the engine cover has "5-Valve" emblazoned across it.

    Hope this helps.
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  4. Corne
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    Corne New Member

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    [Jul 7, 2006]
    thanks but I read a book that stated the enginr was DOCH (double over head cam).
    corne
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  5. jdp1962
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    jdp1962 Grumpy Old Moderator Staff Member Moderator

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    [Jul 7, 2006]
    It may well be DOHC, but your question was how many valves it has, and like I said, unless it's got a badge saying 5-valves (per cylinder), then it's a 12-valver.
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  6. Corne
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    Corne New Member

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    [Jul 7, 2006]
    then there must've been a difference between our engines and your countrie
    's. After our chat I went to the garage, they stated that our engines (AAH)
    was 24v with Doch

    Corne
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  7. icenutter
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    icenutter Member

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    [Jul 7, 2006]
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  8. icenutter
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  9. jdp1962
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    jdp1962 Grumpy Old Moderator Staff Member Moderator

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    [Jul 7, 2006]
    That confirms what I said, that Corne's engine is a 12-valver.
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