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Thread: 12V or 24V

  1. #1
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    12V or 24V

    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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    jdp1962's Avatar
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    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.
    A4 3.0TDi SE Quattro Auto. Factory-fit: RNS-E/bluetooth; F/R parking sensors; full leather/heated front seats; cruise. Retrofit: Remap; Eibach 30mm lowering springs, RS4 RARB; MTEC drilled/grooved discs; 18" RS4 alloys; VW fan washers; Kinetic Digitizor DAB; Blackvue DR380 camera; front armrest; ambient lighting; white LED lights; autodim mirror; Cupra splitter; S-Line door blades; tints; UK pressed plates; MFSW; SDS; TPMS; LED Taillights and DRLs. RS aluminium pedals


  4. #3
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    thanks but I read a book that stated the enginr was DOCH (double over head cam).
    corne

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    jdp1962's Avatar
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    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.
    A4 3.0TDi SE Quattro Auto. Factory-fit: RNS-E/bluetooth; F/R parking sensors; full leather/heated front seats; cruise. Retrofit: Remap; Eibach 30mm lowering springs, RS4 RARB; MTEC drilled/grooved discs; 18" RS4 alloys; VW fan washers; Kinetic Digitizor DAB; Blackvue DR380 camera; front armrest; ambient lighting; white LED lights; autodim mirror; Cupra splitter; S-Line door blades; tints; UK pressed plates; MFSW; SDS; TPMS; LED Taillights and DRLs. RS aluminium pedals


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    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

  7. #6
    icenutter's Avatar
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    According to this webpage aah is a 2valve engine (ie 12valve in total)

    bentleypublishers.com

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  9. #8
    jdp1962's Avatar
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    That confirms what I said, that Corne's engine is a 12-valver.
    A4 3.0TDi SE Quattro Auto. Factory-fit: RNS-E/bluetooth; F/R parking sensors; full leather/heated front seats; cruise. Retrofit: Remap; Eibach 30mm lowering springs, RS4 RARB; MTEC drilled/grooved discs; 18" RS4 alloys; VW fan washers; Kinetic Digitizor DAB; Blackvue DR380 camera; front armrest; ambient lighting; white LED lights; autodim mirror; Cupra splitter; S-Line door blades; tints; UK pressed plates; MFSW; SDS; TPMS; LED Taillights and DRLs. RS aluminium pedals


 

 

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