Vacuum ports on intake manifold?

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Aug 11, 2005
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Gig Harbor, WA
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
 
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.webp
 
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.webp
 
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 ;)
 
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??
 

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