Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor

Please help - she's choking on fuel

(1/2) > >>

bowlingbrad:
I'm very new to this so please be gentle...

I've just installed a rebuilt q-jet onto my 78 Trans Am with a 6.6L

It's very difficult to get the car to start.  She turns over and dies.

I keep my foot to floor and eventually she starts but I have to rev pretty high to get the car to stay running and idle.

Once running it's fine.  BUT if I turn it off, I have to go through the same procedure to get it running again.

I'm assuming with the puff of smoke and smell that it's running way too rich.

My questions:
Is there a thread that explains the idle screw/choke screw dial-in procedure?
I'm looking for specifics/pictures/step-by-steps because I'm really new.

Thanks in advance!

StillLearning:
Welcome to the forum!
Most commercially rebuilt Q-jets are pretty bad, if not junk- mismatched castings, a "universal" approach to the build and cheap parts. That said I would strongly recommend the purchase and thorough study of Cliff's book to get a real feel for what a Q-jet really should be.
Also, consider building an unmolested carburetor. Cliff can supply you with quality parts and a baseline for how the carb should be built.
My suggestion- return the rebuilt and try the route I suggested. You will be very happy with the results.

bowlingbrad:
Thanks for your response!
The book has already been ordered and should arrive soon!

I did get this one from summitracing.com.  They get them from a company called Uremco near my house.  I thought this would be a good one.

I have a couple friends who have some qjet experience but I'm impatient and want to drive my car NOW!  heehee.

Any suggestions on my original questions are welcomed.

StillLearning:
Check the basics first: timing, vacuum hoses for leaks, linkages, etc. I would start with lowering the float level. Still wouldn't mess too much with the rebuilt ...fwiw ;)

carmantx:
Does the carb you have have an original code stamp on it?  If so, what is it?
Like mentioned, you probably have a generic built quadrajet from MIS-matched parts that probably is beyond repair to set up for your Trans Am.  You would be better off finding a good base core and building from there.

Navigation

[0] Message Index

[#] Next page