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#1
11-15-2008, 09:14 PM
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Well I need a new carb...
My Q-Jet rochester has given out on me. I finally got my T/A running today and the other set of barrels on the carb aren't kicking in. So anyone have an opinion on what kinda of carb to buy for a 77 T/A? Or pass a free carb my way lol.
Thanks. |
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#2
11-15-2008, 10:47 PM
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I'd rebuild the Q-jet.
__________________
 ‘63 LeMans- ‘69 400 w/ original transaxle. 2.69 gears. ‘55 Catalina ‘62 Mercury Meteor-all original, bought new by my grandfather 71' GTO -original 400/4-speed/3.23 posi 13.95 @ 102.1 on street tires @ 4055lbs.-now my sons ride |
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#3
11-15-2008, 10:55 PM
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May be something very simple to fix. If you are trying to get the secondaries to kick in when the vehicle is in the garage, probably not going to happen. If the secondaries don't kick in on the road test, try to determine why not. Is the choke plate opening completely (vertical position)? Are the secondary plates stuck closed from long disuse?
Jon.
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"Good carburetion is fuelish hot air".  "The most expensive carburetor is the wrong one given to you by your neighbor". If you truly believe that "one size fits all" try walking a mile in your spouse's shoes! Owner of The Carburetor Shop, LLC (of Missouri). Current caretaker of the remains of Stromberg Caburetor, and custodian of the existing Carter and Kingston carburetor drawings. |
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#4
11-16-2008, 12:40 AM
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rebuilt it already. i'm pretty sure its just worn out and i tried to get them to kick in on the road with no success.
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#5
11-16-2008, 12:58 AM
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q-jet secondaries don't "wear out"..............something is keeping them from functioning.
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#6
11-16-2008, 01:26 AM
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Axle Ive had a similar issue with a crappy Ebay rebuild. You should take a good long look at how the choke and secondary linkages operate on the passengerside of the carb. I'm a backyard mechanic so I can't give you a name for the doohicky that I had to bend into proper position or the spring that the crappy rebuilders put in wrong. It might hhelp if you have access to a similar qjet to see whats suppose to happening. Dont buy any rebuilt carbs from ebay unless you know for a fact that its a repretable builder. Theres a lot of hacks on ebay selling crap remans. But back to qjet vs tripower, I'd only use the tri power for wow factor because they do look freakin' awesome!
__________________
Ya I like kittens, but I also like guns.  Thank you Vets!
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#7
11-16-2008, 09:50 AM
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Might want to post some clear pics if you can't figure it out. I've seen some members here "fix" carbs,just from pics posted.
__________________
‘63 LeMans- ‘69 400 w/ original transaxle. 2.69 gears. ‘55 Catalina ‘62 Mercury Meteor-all original, bought new by my grandfather 71' GTO -original 400/4-speed/3.23 posi 13.95 @ 102.1 on street tires @ 4055lbs.-now my sons ride |
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#8
11-16-2008, 12:19 PM
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Believe it or not, even the best carb ever made needs some maintainace after 20+ years of service.
You just happens to have one of the best carbs ever made. Give it a good clean out, jiffy kit, new float and at least a new primary choke pull off, (sec choke pull-off is an option in my opinion). Why not start with ordering Cliff Ruggles book on Q-jets, then you´ll be good to go. |
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#9
11-16-2008, 12:53 PM
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I've put a kit in it and replaced the float the last week in October. I'll try to get some pictures up or something.
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#10
11-16-2008, 12:57 PM
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Is the choke operational or have you disabled it? There's a link under the choke housing that locks out the secondaries until the choke has dropped off completely. If it's not opening completely, the link might be staying engaged...
It's the secondary lockout lever in this picture.
__________________
Aut viam inveniam aut faciam 1971 Trans Am 455HO M22; Cameo White / Blue 1971 GTO Convertible 455 M40; Starlight Black / Black Last edited by Chiefpontiac; 11-16-2008 at 01:08 PM. |
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#11
11-16-2008, 05:28 PM
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I had a similar experience with the secondaries not working on my qjet. I rebuilt it myself but I had not prior knowledge of them. I don't know what was wrong with mine but it worked fine after I took it back apart and put it back together. That was a simple enough fix for me you might want to try it.
__________________
1969 GTO. Full rotisserie restoration "completed" in 2014. 5.3L "LM7", TKO600, 3.55's out back. Big cam coming soon. 
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#12
11-16-2008, 05:32 PM
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Post Pics!..It will help us and u alot!.. I love My q-jet!
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Darby 74 Grandville 2Dr 455 c.i 4550# 2011 1.60 60 ft,[email protected]@117.74  2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, [email protected] [email protected] M/T 275/60 ET SS Drag Radial 2024(Pontiac 505) 1.25 60 ft, [email protected], [email protected].... 275/60 Radial Pro's |
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#13
11-16-2008, 08:37 PM
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Quote:
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Can do the talk, can't do the walk......therefore need deep pockets  Injection is nice but I rather be blown  If you got it flaunt it, if not fake it (Snoopy) Original 1977 Firebird / Welded tube frame connectors TH350 with shift kit / 400 bored/stroked to 455 by PDude OCD=Waxing and polishing your oil filter SICK=wetsanding your exhaust pipe |
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