Cliff's Quadrajet Parts and Rebuild Kits
Quadrajet Problem Solving => Buy Quadrajet Parts, Quadrajet Kits, Service => Topic started by: FizHD on July 01, 2019, 11:23:34 AM
-
Greetings,
I'm in the process of rebuilding my qjet 17086004. CCC on a 305.
First question on the well plugs.
I tested the well plugs with compressed air with bubbles on the caped side and none of the 5 leak.
I was having 2 issues that made me think they would be leaking.
1. When engine is up to temp and I shut it down and it sits for 20-30 min I would have to hold the throttle about half way open to get the car to start as it would act like it was flooded.
2. After sitting for 2 nights in the garage I would have to crank the engine for 5 seconds or so before it would start. I didn't check the pump shot or to see if the bowl was empty before starting the rebuild.
Here is a 3rd reason I thought for sure they were leaking.
https://photos.app.goo.gl/MueUbf79L1Q8uZnS6 (https://photos.app.goo.gl/MueUbf79L1Q8uZnS6)
What causes the carbon buildup if they're not leaking?
Now onto the book question.
Does the rebuild book cover the CCC carb settings also?
I need to pick up the bushing kit for this rebuild too.
Thanks,
John F
-
If you can't push high pressure compressed air past the plugs fuel at zero pressure isn't getting by them.
Lots of other reasons the carb acts empty and difficult hot re-starts unrelated to leaky bottom plugs.
I would get one of our rebuild kits and completely/correctly rebuild the carburetor. Then evaluate it in all areas.
It is very important to install a new float and correct Viton N/S assembly and set the float correctly. A "heavy" float and/or leaky needle or at the gasket under the needle will cause all sorts of difficult restart issues hot or cold.......Cliff