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Old 08-21-2013, 06:16 PM   #1
slow-1
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Join Date: May 2013
Location: Central NC
Posts: 830
QuadraJet Secondary Linkage

Since I had my Q-Jet rebuilt by a buddy who has done many of them successfully for me in the past, I noticed the secondary's weren't opening (not a problem while I was taking it easy on it after the engine rebuild).

So I decided today to see if I could figure it out.

I checked to make sure the choke was opening fully allowing the secondary air valve (flapper) to open, it is working correctly and I can easily open the air valve with my finger.

I then looked to see if the secondary butterflies were opening at WOT...they are not, in fact they barely move at all.

Is the linkage assembled wrong?

Closed throttle:



WOT:



As you can see, the secondary butterflies hardly move.

I read that to adjust the amount the secondary's open you bend the tab on the primary shaft, but the tap seems to be out of position, I don't see a way to bend it enough and it still work.

Any insight is appreciated.
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1972 Cheyene C-10 "Ole Green"
My Grandfathers truck (early 70's to 1983)
My first vehicle (1983)
Original 350 (3 rebuilds)
700R4 from Bowtie Overdrives

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