Vacuum Line Question
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Vacuum Line Question
I just got my 79 SA running last weekend thanks to a carb from drozhenbane. This carb came from a later model RX-7 seeing that it has the attachment for the cruise control cable and my original carb didn't as well as other small differences. When I had my old carb hooked up, there was a vacuum line that ran from a "plastic bulb thingie" on the passenger side below the plastic throttle body shield up to the carb. On the new carb, I can't find a place to hook this line up. Is this vacuum line important or can I cap it off?
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I am borrowing this pic from 64mgb. I am not sure where the vacuum line circled in red is supposed to go. I couldn't find a place on the newer carb for it to connect to. What is the part that is circled in green and can it just be capped off?
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Originally Posted by Wankelguy
That's the air control valve, the tube usually attaches to a spigot on the bottom of the air filter housing.
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#8
Pretty much, yes. It's part of the emissions system and works in concert with the airpump, thermal reactor, and air-injectors.
Install a proper header and you can do away with all that garbage. The resulting simplification makes life a lot easier.
Install a proper header and you can do away with all that garbage. The resulting simplification makes life a lot easier.
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