Q-jet flooding
Thread Starter
Safety Car
Joined: May 2005
Posts: 4,176
Likes: 7
From: Jennings LA
Q-jet flooding
I have rebuilt quadrajet on my 71 454 vert. I have been running it in the shop and if run it then let it sit for 30 min or so and try to start it is flooded. have to hold it to the floor to start. the rebuilt carb was put on in 2001 and only has the 30 miles on it from when I drove it home. does it have an power valve similar to a holley? or what could it be?
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
sounds like it is boiling fuel in the bowl, it then squirts out into the throttle bore. Look into getting a heat shield for under the carb, insulate the fuel line/make sure its not running close to a header.
That would be IF it is actually flooding, next time it does this, check to see it it still has fuel in the bowl, look in the carb throat and bump the throttle to see if the pump squirts.
If it doesn't, then you may have a fuel pump problem.
That would be IF it is actually flooding, next time it does this, check to see it it still has fuel in the bowl, look in the carb throat and bump the throttle to see if the pump squirts.
If it doesn't, then you may have a fuel pump problem.
Thread Starter
Safety Car
Joined: May 2005
Posts: 4,176
Likes: 7
From: Jennings LA
Originally Posted by SIXFOOTER
sounds like it is boiling fuel in the bowl, it then squirts out into the throttle bore. Look into getting a heat shield for under the carb, insulate the fuel line/make sure its not running close to a header.
That would be IF it is actually flooding, next time it does this, check to see it it still has fuel in the bowl, look in the carb throat and bump the throttle to see if the pump squirts.
If it doesn't, then you may have a fuel pump problem.
That would be IF it is actually flooding, next time it does this, check to see it it still has fuel in the bowl, look in the carb throat and bump the throttle to see if the pump squirts.
If it doesn't, then you may have a fuel pump problem.
wish I could but the frame off has several more months to go
