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Carb conversion

Discussion in '40- & 55-Series Tech' started by Bryan-71, Jul 15, 2003.

  1. Bryan-71

    Bryan-71

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    I just bought a '78 carb from someone on this board, I am putting it in a '71. The 78 has WAY :eek: more vaccum lines and stuff than my old one did. Can anyone point me in a direction where to figure out where all these go, and which ones I need and dont need.
     
  2. Bryan-71

    Bryan-71

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    Can I just plug all the vaccum lines off and run it like that?
     
  3. CruisinGA

    CruisinGA

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    What you need to do is get a FSM that covers the new carb, and figure out what all those fittings are for, and if one is irrevelant to your engine, plug it. I imagine you will use at least 3 of them. (PCV, Choke adjuster deal, and gas vapor emissions line).
     
  4. Chef

    Chef

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    Search the lcml archives for Jim Chenoweth's desmog diagrams
     
  5. OlympiaFJ60

    OlympiaFJ60

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    [quote author=Chef link=board=1;threadid=3674;start=0#msg27324 date=1058402898]
    Search the lcml archives for Jim Chenoweth's desmog diagrams
    [/quote]

    Or go to the tech section here at IH8MUD and look at Fuel/Engine Tech. There are two versions there.

    Brandon