400i 1980 ign wires order | FerrariChat
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400i 1980 ign wires order

Discussion in 'Technical Q&A' started by fmaderi, Oct 19, 2006.

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  1. fmaderi

    fmaderi Formula Junior

    May 8, 2005
    258
    clearwater Fla/NY
    Full Name:
    frank maderi
    #1 fmaderi, Oct 19, 2006
    hi running into a tuff one and would like to confirm the actual wire/firing order . car runs on one bank and have tried 2 different f/o one that the car came in with and the wsm . fuel,compression, fine . thanks for anyhelp [email protected] . i do have an issue with mixture unit leaking but have moved it to the other bank .
     
  2. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,603
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    #2 Steve Magnusson, Oct 19, 2006
    1-7-5-11-3-9-6-12-2-8-4-10

    See page 85 in the 176/79 OM or page 77 in the 250/82 OM to confirm this and the cylinder numbering.

    If it runs smoothly on just one bank (when you try different firing orders), I'd say that you have no fuel supply to the bad bank -- i.e., if you have the firing order wrong -- and you must in some case(s) if you've tried different ones -- (and both banks have fuel and spark), it would be bucking/backfiring/generally doing horrible things.
     
  3. fmaderi

    fmaderi Formula Junior

    May 8, 2005
    258
    clearwater Fla/NY
    Full Name:
    frank maderi
    #3 fmaderi, Oct 19, 2006
    plugs are wet . the cap seems to be marked in the opposite direction to the rotation of the ign rotor . cap says 1 8 4 12 2 9 6 11 3 7 5 10 i read that these caps may not be the orig. thats way i was hoping someone with a car could check and tell me 1 7 5 11 3 9 6 12 2 8 4 10 in a clockwize or counterclock rotation . seems this problem has been with owner a while . thanks for the quik response . cheers frank oh the firing order in the 3 manuals i have give the 1 7 5 11 etc order i also have no idea if year is important
     
  4. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,603
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    #4 Steve Magnusson, Oct 19, 2006
    Sorry for stating the obvious, but your second post makes the "trouble" more clear.

    I checked the schematic at the back of the 176/79 OM, and the labels shown on the distributor cap actually match that 1-8-4-12-2-9-6-2-11-3-7-5-10 order. I'm just guessing but, I'd have to think that the error occurred in the text on page 85 (something just typed and was never corrected in later OMs) and that the schematic (something done by the Eng Dept and scanned) is correct.
     
  5. fmaderi

    fmaderi Formula Junior

    May 8, 2005
    258
    clearwater Fla/NY
    Full Name:
    frank maderi
    #5 fmaderi, Oct 19, 2006
    great . can you see which way the rotor is spinning in the schematic . the rotor in the car turn s clockwise .could the cap be labeled in the opposite direction ? only a fiat lmao
     
  6. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,603
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    #6 Steve Magnusson, Oct 19, 2006
    Last edited by a moderator: Sep 7, 2017
    The labeling on the schematic implies a CCW rotor rotation (to give that 1-8-4... order) if the view is taken from above (but this may not be the case) -- you need someone with another 400i to comment:
    Image Unavailable, Please Login
     
  7. tvine

    tvine Formula Junior

    Jul 19, 2006
    270
    Cadillac, Michigan
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    Tom Vine
    #7 tvine, Oct 19, 2006
    I read somewhere that the replacement caps for the 400i engines are the same cap as the 512BB except that the firing order is marked differently. It sounds like you may have a 512BB cap. I read this 15 years ago so forgive me if it is not quite correct.
     
  8. fmaderi

    fmaderi Formula Junior

    May 8, 2005
    258
    clearwater Fla/NY
    Full Name:
    frank maderi
    #8 fmaderi, Oct 20, 2006
    ok here goes . 153624 is any 6 cyl f/o and the dist shaft does rotate clockwise . so 1 7 5 etc is the order . just plug 153624 into the wsm order the car will run on the 1 8 5 number but you have to install the wires in a counter clockwise order to make her run , i am not out of the woods yet with this car . cannot adjust fuel ixture car runs much better almost 100 percent . inteligent customer
     

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