06-10-2018, 09:49 PM | #1 |
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Join Date: Feb 2013
Location: central California
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Quadrajet question
I have a vacuum port on the top backside of the carb that's capped and a line that's capped. The line goes to manifold vacuum and the other branch on it runs the climate control on my Caddilac. The motor is a 472. I assume the capped ends should be united by a hose right? Also, what is the purpose of the port on the carb? Thanks
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06-11-2018, 11:59 AM | #2 |
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Location: Oklahoma City, OK
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Re: Quadrajet question
Q-Jets were installed on a wide range of vehicles. Not at all uncommon for a port to be plugged from the factory or after a carb rebuilt.
If the line with the capped T is otherwise working, the T could be a PO's answer to mis-matched hose sizes or the only hose connector available at the time. Or could be for something since removed. If the climate control is working, I would replace the T with the appropriate connector and call it good and just leave the carb port capped. |
06-11-2018, 01:06 PM | #3 |
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Location: thomastown mississippi
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Re: Quadrajet question
That should be a vent port to vent vapor of some type over into the carb.
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06-11-2018, 07:09 PM | #4 | |
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Re: Quadrajet question
Quote:
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