Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem
throttle plate v.tubes filled
F250 Restorer:
I bought a 17059247 on ebay. To my surprise, I found some of the v.tubes in the base plate have been filled with what I believe is plaster of paris.
I want to rebuild the entire carb, but first I need to determine if I can use the base plate. If that is rebuildable, I will go further. Does anyone know how to clean out the tubes? Is it possible? Is it worth the trouble?
Cliff Ruggles:
Tubes in the baseplate? Can you put up some pics?
F250 Restorer:
Yeah, the v. tubes in the baseplate. I just took a drill and drilled into the white filling and it all fell out, in all the tubes.
The mix screws were still factory sealed so I though it good baseplate. Then I found that it was cracked at the throttle shaft, and the shaft had already been bushed.
Are you sure I can't use a baseplate from another carb? another 1705(9)
Cliff Ruggles:
That small crack will not hurt anything. You can drill and set a bushing deeper into the hole and it will be fine. It's been dropped pretty hard at some point so the shaft will also need straightened after a new bushing is set deeper......
F250 Restorer:
So...drill out the existing bushing and install the new one deeper so that it is further recessed with more of the 'meat' around it. OK.
What is the horizontal slit in ONE of the baseplate's primary bores? Below:
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