rebuilding qjet stuck on a step
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rebuilding qjet stuck on a step
Okay, so I got this book "How to Rebuild And Modify Rochester Quadrajet Carburetors" due to the fact that this would be my first rebuild. Anyhow, I was at the step where I remove the idle tubes and they just won't come out. I'm afraid now, that i may have got some shavings down there. Is there any step to get these out still? The book had me punch the tube in just a smidge and then use a screw with the tip removed to engage the collar, pull with some pliers and wha lah.. Problem is that the screw just kinda kept eating away at the collar and when it did connect it put too much pressure against the walls of the hole making it **seemingly** impossible to pull out. Any help would be greatly appreciated.
Eddie.
okay, so after grinding down my like fifth screw, I got one that finally held on perfecto. Any other hints and tricks would be pretty awesome though thanks
Eddie.
okay, so after grinding down my like fifth screw, I got one that finally held on perfecto. Any other hints and tricks would be pretty awesome though thanks
Last edited by osirus; 11-09-2008 at 01:31 AM. Reason: persistance
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Re: rebuilding qjet stuck on a step
I know there is a mod to do to them. Just be sure to clean and blow them out when you are done. Sometimes they are really tight
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Car: 89' RS
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Re: rebuilding qjet stuck on a step
Yeah, it looks tons cleaner now and I'm just over half way through putting it back together. Of course, this would be one of my projects if I didn't make one boo boo here and there. That being, I didn't record the position of ANY of the mixture screws that I took off. Anybody know a good place for those to be set??
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Re: rebuilding qjet stuck on a step
Bottom them out, and then unscrew them about 3 full turns. You will have to adjust them once the engine is running.
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Re: rebuilding qjet stuck on a step
how about that screw that is at the float? This is my first carb rebuild. It's going alright so far. I just don't know how to get that screw adjusted. Also, how can I make it easier to button it back up? I tried to just mock fit it and I had a horrid time with this hook that wouldn't go in...
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Car: 87 Camaro Z-28
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Re: rebuilding qjet stuck on a step
turn the idle mixture screws in until they gently stop, then back out 3 turns. if this doesn't anwswer your question then what part number are you're talking about? look on pages 6C1-16 & 6C1-17 from https://www.thirdgen.org/forums/carb...e-rebuild.html
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Re: rebuilding qjet stuck on a step
When you say 'gage tool' to you mean like calipers or something else entirely? If it's something else, Then, no. the kit came with to stupid paper 'L' rulers, the calipers are my own.
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Gage tool as shown in the service manual.
I got mine from Checker Auto. Search for more details.
I got mine from Checker Auto. Search for more details.
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Re: rebuilding qjet stuck on a step
If my memory serves me correct there were 5 full turns of adjustment, from rich to lean. I would bottom it and back it out 2 1/2 full turns if you don't have the right tool to set it. Bottomed out is lean and backing it out richens it up.
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Car: 87 Camaro Z-28
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Re: rebuilding qjet stuck on a step
if it's rich the exhaust probably smells & mpg goes down. there's a analog dwell meter that's used to set idle air mixture. but as for the guage, after I couldn't find one anywhere I made one from a ball point pen. worked ok.
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Re: rebuilding qjet stuck on a step
How did you use the pen as a gauge? I couldn't find one in town and i was hoping for some way of doing this at least somewhat correctly
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Re: rebuilding qjet stuck on a step
Yeah, I have a set. I used it to check my float level. Could you possibly tell me in idiotic terms how to adjust that screw? (note: aside from screwing clockwise/counterclockwise.()
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Re: rebuilding qjet stuck on a step
I used a piece of dowel measured and marked for a float gauge mentioned in picture 6C1-14.
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Car: 89' RS
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Re: rebuilding qjet stuck on a step
On the top, is a piece of tubing that I cut and ground down to as close as I could get it. on the bottom is a piece of metal that i modded for my calibration tool. fun stuff huh? So, I just slide that tube onto the jet and tighten until when I push down, it just touches?
Edit:Okay, so I went ahead and gave it a try with that tube. got it to exactly 1.304. verified with the calipers. yay for me?
Last edited by osirus; 11-16-2008 at 02:57 AM.
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Car: 87 Camaro Z-28
Engine: 305 LG4 w/ E4ME carb
Transmission: 700R4
Axle/Gears: 2.73
Re: rebuilding qjet stuck on a step
On the top, is a piece of tubing that I cut and ground down to as close as I could get it. on the bottom is a piece of metal that i modded for my calibration tool. fun stuff huh? So, I just slide that tube onto the jet and tighten until when I push down, it just touches?
Edit:Okay, so I went ahead and gave it a try with that tube. got it to exactly 1.304. verified with the calipers. yay for me?
#23
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Car: 87 Camaro Z-28
Engine: 305 LG4 w/ E4ME carb
Transmission: 700R4
Axle/Gears: 2.73
Re: rebuilding qjet stuck on a step
That's what's listed as basic setting. when mine was srcewed tight against the body of the carb (zero" of play) I couldn't adjust the carb once it was all back together & on car (carb burned way rich). so, rich stop needs needs ~ an 1/8" between carb casting and the top of the rich stop (+ or - 1/16").
6C1-12 shows the bottom side of carb wher you can easily get at the rich stop to adjust. it has 2 flat sides that allow a pair of plyers or maybe an open box wrench to move, if the rich stop happens to be tight against the casting. If it's already set a small distance away from the top of carb, and the carb worked correctly at some point before rebulding, then measure the distance and leave the rich stop there, might just be the factory setting/distance/measurement.
once the carb's together then 6C1-14 shows an elusive tool I could never find anywhere. you don't adjust this unless the dwell meter never sets to 30 degrees on 6 cyl scale (50% dwell). finally used a pair of surgical tweezers to adjst when the carb was back on the car.
6C1-12 shows the bottom side of carb wher you can easily get at the rich stop to adjust. it has 2 flat sides that allow a pair of plyers or maybe an open box wrench to move, if the rich stop happens to be tight against the casting. If it's already set a small distance away from the top of carb, and the carb worked correctly at some point before rebulding, then measure the distance and leave the rich stop there, might just be the factory setting/distance/measurement.
once the carb's together then 6C1-14 shows an elusive tool I could never find anywhere. you don't adjust this unless the dwell meter never sets to 30 degrees on 6 cyl scale (50% dwell). finally used a pair of surgical tweezers to adjst when the carb was back on the car.
#24
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Re: rebuilding qjet stuck on a step
Okay. I needed to know if there was anything special about putting all that choke crud back on. I fiddled with it for a while tonight after work and i got it to where everything fit, but is there something I should be looking out for? I really want to finish this rebuild and it seems that after this the only thing left would be fine tuning on the car.
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Re: rebuilding qjet stuck on a step
There's an earlier post started by Nate86 on rebuilding the q-jet that also has alot of extra info that may help.
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Re: rebuilding qjet stuck on a step
http://s228.photobucket.com/albums/e...4/Camaro/qjet/
there's a link to a bunch of pictures of the choke setup as I figured it would be. It really only seemed to fit one way, but I could be wrong as I usually am.
there's a link to a bunch of pictures of the choke setup as I figured it would be. It really only seemed to fit one way, but I could be wrong as I usually am.
Last edited by osirus; 11-22-2008 at 03:40 PM.
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Re: rebuilding qjet stuck on a step
yeah, it was kinda hard to take pictures like that, so I just took as many as i thought were good enough and posted em' all. thanks!
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12-25-2015 04:49 PM
adjustments, carbarator, diagrams, e4me, float, gauge, lean, mixture, picturs, qjet, read, rebuilding, rochester, ruler, set