Cliff's Quadrajet Parts and Rebuild Kits
Quadrajet Problem Solving => Diagnose a Quadrajet carburetor problem => Topic started by: bober on January 21, 2012, 06:24:28 PM
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Is the vac. pulloff for nthe secondary supposed to hold steady when vacume is applied ?
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Some have a bleed hole to delay them a bit. I don't like or use the secondary pull-offs if the primary has the link up to the secondary airflap shaft, which that carb does. The secondary pull-off is not needed, it's only a back-up to the primary one.
I just not comfortable with a vacuum leak, even a tiny one thru a bleed hole, that will allow unfiltered air to enter my engine.
Even if I use the secondary pull-offs, I block the bleed hole with a dab of Marine Tex......Cliff
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It seems as though there's 4 little holes that go around the vac unit itself that if I plug them off by hlding my fingers on them that it holds the vac. So I thought it might be designed to open then let off? I just happened on this on the bench ,I thought I woud test this and if I needed one to get it before the installation , I'm still waiting to get the car back from paint shop . Just looking forward to the swap !!!