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Thread: Grounding wire on a spark plug

  1. #1
    Join Date
    Aug 2005
    Posts
    593

    Default Grounding wire on a spark plug

    Below is the picture I took while changing the spark plugs. Somebody told me that there should be a second grounding wire (left side of the pic) on another plug. Is it true? will that affect performance?
    Attached Images Attached Images  
    1994 520i with M50 engine, manual transmission and air conditioner.
    VIN: GG45422

  2. #2
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    Sep 2006
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    Colorado
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    Default

    I have two on mine. At plug 3 and 6 IIRC.

  3. #3
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    Is it that specific where those grounding wires should be?
    1994 520i with M50 engine, manual transmission and air conditioner.
    VIN: GG45422

  4. #4
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    Jan 2004
    Location
    Thunder Bay, Ontario
    Posts
    2,538

    Default

    Quote Originally Posted by t_marat
    Is it that specific where those grounding wires should be?
    good question. FWIW, mine are also on 3 and 6.

    10/90 Build 525im, 630,000+km, Eibach/Sachs, Engine Rebuild
    *RIP Oskar the DOG *

  5. #5
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    Aug 2005
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    Quote Originally Posted by Dave M
    good question. FWIW, mine are also on 3 and 6.
    6th cylinder is if counting from the windshield or from the front side of the car?
    1994 520i with M50 engine, manual transmission and air conditioner.
    VIN: GG45422

  6. #6
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    trinidad, in the caribbean
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    counting from the front, so the 6th cylinder is nearest the windscreen
    [IMG]

  7. #7
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    I would guess one strap per bank.

  8. #8
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    Eastern Tennessee USi
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    thats what my 530 has...1 per side.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  9. #9
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    Jul 2005
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    NOR CAL
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    Default

    mine only has 1 on 6.

  10. #10
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    Jan 2007
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    Cardiff, S.Wales, UK
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    Default

    I have 2 straps, 525i 24v M50

    If you want, I could take some pics and post up where they are?
    Craig

    Riding in an M52 Avus E34 Sport... Hell yeah.

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