Quadrajet Hesitation When Accelerating

[snipescastle2]

Power valve in a Qjet now that's funny......
Posted via Mobile Device

[Haakon]

I have the same exact issue that your having! Did you ever get to the bottom of your bogging?

[geezer#99]

You know Haakon you're likely better to start your own thread with your own pics and symptoms.

[Haakon]

Originally Posted by geezer#99

You know Haakon you're likely better to start your own thread with your own pics and symptoms.

No worries! I just unboxed a fresh rebuilt quadrajet from US Carbs, so hopefully I won't have to start a new thread! Thanks much!

[geezer#99]

Looking forward to your new thread Haakon about 'I just bought this rebuilt carb and can't get it to run'!!
Just sayin'!!!

[Haakon]

Originally Posted by geezer#99

Looking forward to your new thread Haakon about 'I just bought this rebuilt carb and can't get it to run'!!
Just sayin'!!!

Sorry to burst your bubble geezer.... Like night and day! If I didn't know better, I would have thought this was 1971 and I was test driving a brand new c10!!! Great job U.S.Carbs!!

[geezer#99]

Congrats Haakon!!
It's not always that way, what with the way they handle stuff during shipping.
Remember!
Keep the shiny side up and the greasy side down!!

[WIDESIDE72]

Originally Posted by soxplayer

I somebody tells you that you have the wrong powervalve in a QJET, try to forget everything they said to you.

I was beginning to wonder if i was the only one to catch that! Silly rabbit, Power valves are for Holleys! (One backfire and youre done!)

[FLEET72]

Originally Posted by WIDESIDE72

I was beginning to wonder if i was the only one to catch that! Silly rabbit, Power valves are for Holleys! (One backfire and youre done!)

Was thinking the same thing....You are in my old stompin' grounds, I lived on what is now Ronald Reagan Blvd. OK, back to the topic.

jbwolfe, did you get it sorted out?

[Fitz]

Originally Posted by geezer#99

Looking forward to your new thread Haakon about 'I just bought this rebuilt carb and can't get it to run'!!
Just sayin'!!!

Shoulda bought a Holley, Haakon!

[Haakon]

Originally Posted by Fitz

Shoulda bought a Holley, Haakon!

I'm not partial either way, just keeping it the same as when I bought it.. It really is running nice! Most likely would run the same or better with a Holley? I am going to install an Edelbrock intake (2101), to replace my cast intake though.

[Haakon]

Originally Posted by geezer#99

Congrats Haakon!!
It's not always that way, what with the way they handle stuff during shipping.
Remember!
Keep the shiny side up and the greasy side down!!

Will do Boss!!

[jbwolfe]

Originally Posted by geezer#99

Looking forward to your new thread Haakon about 'I just bought this rebuilt carb and can't get it to run'!!
Just sayin'!!!

My thoughts exactly, considering that the carb I'm hassling with was "rebuilt" by "professionals".

Originally Posted by FLEET72

Was thinking the same thing....You are in my old stompin' grounds, I lived on what is now Ronald Reagan Blvd. OK, back to the topic.

jbwolfe, did you get it sorted out?

I haven't had the time to mess with it, but I did start reading the book about Q-Jets, and have already learned some really cool stuff. I have a another Q-Jet I bought from a friend that needs rebuilt, but is a complete unit that ran fine years ago. With the help of the book, I discovered that it is one of the better Q-Jets, nothing amazing, but a good solid carb to rebuild. I'm going to rebuild this one instead of messing with the "rebuilt" one.

I'm going to make this carb rebuild a winter project, have to finish up a few other projects around here, and clean up my shop so I have enough bench space to take it apart and keep track of everything.

Originally Posted by Haakon

I'm not partial either way, just keeping it the same as when I bought it.. It really is running nice! Most likely would run the same or better with a Holley? I am going to install an Edelbrock intake (2101), to replace my cast intake though.

Looks good! Glad your rebuilt carb worked out better than mine did

I'm learning that if I want something done right, I better just do it myself. It should be cheaper, it will eventually get done right, and I'll gain some more knowledge and maybe some new tools along the way.

[jbwolfe]

Originally Posted by luvbowties

*change to above: should read "with vacuum advance Un-attached and plugged, of course"...

I'll add that to the list of things to try. Thanks for the suggestion

Originally Posted by soxplayer

I somebody tells you that you have the wrong powervalve in a QJET, try to forget everything they said to you.

You really need to get Ruggles book if you are serious about keeping this carb. If you get it right, it is very good. The book will show how to go about debugging the carb step-by-step.

I always find that the choke is never quite right. I set mine slightly loose so that it stall after a first cold start. Otherwise the choke hangs on too long and makes the engine overly rich.

A mechanic told me it had the wrong "powervalve spring". I'm assuming that being part of the powervalve would mean it also does not exist in a Q-Jet.

I did get the Ruggles book and have started reading it.

Things are starting to slow down for me, so hopeful I will get started on this sooner than later. Thank you all for your help so far, no doubt along with the book these replies will come in handy when I go to rebuild the carb and tune it.