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275GTB 6 carb setup page from the parts manual

Discussion in 'Vintage (thru 365 GTC4)' started by shaughnessy, Dec 11, 2019.

  1. shaughnessy

    shaughnessy Formula 3
    Rossa Subscribed

    Apr 1, 2004
    1,789
    Wolfeboro NH
    Full Name:
    Thomas E Shaughnessy
    does anyone have the page from a parts manual GTB Not out our the 4 cam supplement

    for the 2 cam has no chokes, 40DCN/9, different valve cover ..........

    unsure if it made it to table in the parts manual

    thank you in advance

    tshaughnessy375@gmail.com
     
  2. lancia

    lancia Formula Junior

    Jan 18, 2004
    338
    Hi Tom,

    I just went through the parts manual to be sure, but the 6-carb set up for the two cam 275GTB is not in the parts book (no illustartion and no reference in the corresponding part descriptions/numbers). The 6-carb arrangement is also not included in the later parts book with the 1965 supplements. The 2nd version drive shaft does make it to the supplement, but the torque tube does not. For the torque tube, for example. you need to look at 275 GTB/4 supplement together with 330GTC parts book. Maybe it can be found in some factory technical bulletin?

    Chris
     
  3. lancia

    lancia Formula Junior

    Jan 18, 2004
    338
    "illustration"
     
  4. DWR46

    DWR46 Formula 3
    Honorary

    Jun 19, 2012
    1,252
    Tom: The factory never issued a parts listing or illustration for the six carb option for the 275 two-cam. What specifically do you need?
     
  5. shaughnessy

    shaughnessy Formula 3
    Rossa Subscribed

    Apr 1, 2004
    1,789
    Wolfeboro NH
    Full Name:
    Thomas E Shaughnessy
    Dyke

    thanks for your reply

    What settings do you use?? same as factory used or different ???
    I know there was a bulletin on the 4 cam 40DCN's that changed some settings

    main jet
    air correction
    emulsion tube
    pump jet
    aux venturi
    choke

    There is mechanical choke on a 2 cam engine. I believe

    Thank you in advance
     
  6. DWR46

    DWR46 Formula 3
    Honorary

    Jun 19, 2012
    1,252
    Tom: I will send you an email.
     
  7. thepinkumbrella

    thepinkumbrella F1 Veteran

    Feb 26, 2006
    5,722
    United Kingdom
    Full Name:
    Paul Harris
    I am not mechanically minded whatsoever and I am aware these are for 40 DCN 3 carbs.
    I also have these sheets for if anyone ever needs them:

    38 DCOE 59-60 (365 GTC/4)
    38 DCOE 110-111 (400 GT Automatic)
    38 DCOE 110M-111M (400 GT Manual)
    38 DCN - 38 DCN 1 (250 Testarossa)
    40 DCN (275 GTB)
    40 DCN 17 (275 GTB 6 Carb)
    40 DCN 18 (275 GTB/4)
    40 DCN 21 (365 GTB/4)
    40 DCNF 35-36-37-38 (308 GT4)
    40 DCNF 57-58-59-60/150 (308 GT)
    40 DCNF 64-65-66-67 (308 GT4 Australian version)
    40 DCNF 72-73-74-75 (308 GT4)
    40 DCNF 72-73-74-75/100 (308 GT4 Japanese version)
    40 DCZ 6 (330 GT)
    40 DFI 2 (330 GT)
    40 DFI 5-6 (365 US Version)
    40 IF 3C1-2-3-5 (BB)
    DCF?DCL?DCZ 36-40-42 (166/212/250/340)
    40 DCN 3 (275 GTB)

    Paul
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