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Vacuum ports on intake manifold?

Discussion in '40- & 55-Series Tech' started by roverpilot, Aug 15, 2005.

  1. roverpilot

    roverpilot

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    78 CA FJ40...there are 2 vacuum ports on manifold just below the carb. They are on the drivers side, one large port and one smaller, side by side. Where does the SMALL port connect to? It is the size of a standard vacuum hose. Doesnt show on my 78 CA emissions diagram.. Thanks for any ideas. Rob
     
  2. HawkDriver

    HawkDriver

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    I had a few ports just plugged off. Don't think they went to anything.
     
  3. Robert LaDuke

    Robert LaDuke

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    This is what the stock configuration looks like. Two vaccuum lines on the carb pedastal. One large line on the manifold goess to the PCV
    vaclines.jpg
     
  4. Robert LaDuke

    Robert LaDuke

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    The left vac. line on the carb block goes to the carb.
    lft vac.jpg
     
  5. dmaddox

    dmaddox

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    that port actually went to an electronically actuated valve that bolted to the fender. There were two of them. If you don't have these two electronic vacuum switches - you might as well just plug it.

    cheers,

    ragman
     
  6. Robert LaDuke

    Robert LaDuke

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    The one on the right goes to the VCV.
    If you're desmogged you probably don't need any of these lines( except the PCV).
    abv.jpg
     
  7. Landpimp

    Landpimp GOLD Star

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    Hey, Rob Welcome :)

    give me(John H, in GH) a ring, I want to check out your 40 and your 109(if ya still have it)

    Sorry not much help on the CA emission stuff....thankfully ;)
     
  8. LandCruiserSteve

    LandCruiserSteve

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    Okay, so I'm going senile. :frown:

    Someone just posted a real nice scan of an emissions diagram (for a '78 I think) either yesterday or the day before.

    Which thread was that in??
     
  9. LandCruiserSteve

    LandCruiserSteve

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    Never mind . . . I found it. It was over in the 60 Series forum. :eek: