General Category > Quadrajet Carb Talk and Tips
Changing the choke pull-off from the rear to the front
Cadman-iac:
Question, I thought I had read on here somewhere that it's possible to use a front mounted style of choke pull-off on the 80's truck carbs that came with the rear mounted choke pull-off.
Was i dreaming, or is it possible, and if so, how do you make the linkage work?
Because of the design of the air horn on these with the rear pulloffs, the stop tab is not in the correct location if you use an air valve shaft with the slot in it for a front mounted pull-off. How can you do this? What modifications are necessary?
Thanks in advance for any advice regarding this.
Rick
PS: im trying a truck carburetor to see if my issues are with my engine or the Cadillac carb, #17057230, that's been giving me a headache for months.
Im gonna try a 17084226 and see what happens. This one is unmolested, and if had it on a 327 and it worked great. But to use it on my Burb I have to remove the rear pull-off.
mzbk2l:
One of my 17084226s had both a front and a rear choke pulloff. I'll try to get a photo later if the front one is still attached.
When I tested the release times, though, the front was a lot slower to allow the secondaries to open than the rear one was.
Cadman-iac:
--- Quote from: mzbk2l on November 12, 2025, 11:49:13 AM ---One of my 17084226s had both a front and a rear choke pulloff. I'll try to get a photo later if the front one is still attached.
When I tested the release times, though, the front was a lot slower to allow the secondaries to open than the rear one was.
--- End quote ---
I've got clearance issues, that's why I'm switching it to a front mounted style.
Yes, pictures of the linkage and the bracket on the end of the shaft so I can see what design I need to look for. Thanks for that, much appreciated.
Kenth:
--- Quote from: mzbk2l on November 12, 2025, 11:49:13 AM ---One of my 17084226s had both a front and a rear choke pulloff. I'll try to get a photo later if the front one is still attached.
When I tested the release times, though, the front was a lot slower to allow the secondaries to open than the rear one was.
--- End quote ---
The 17084226 did NOT use a front choke pull-off from factory.
You´ll need the rear choke pull-off and the link to the airvalve shaft for proper functions.
mzbk2l:
--- Quote from: Kenth on November 12, 2025, 12:23:29 PM ---The 17084226 did NOT use a front choke pull-off from factory.
You´ll need the rear choke pull-off and the link to the airvalve shaft for proper functions.
--- End quote ---
I didn't think it looked stock (I have a shelf full of that p/n and none of the others had a front pulloff), but it was there when it arrived. I'll look and see if it's still installed and if so I'll get a photo.
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