Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

quick question. what is this part?

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Old Mar 16, 2011 | 06:44 PM
  #1  
spiffiestpengui's Avatar
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From: redding ca
Car: 1983 z28 and 3000gt twin turbo
Engine: 305 v8
Transmission: auto with b&m shifter
Axle/Gears: i dont know. they're stock
quick question. what is this part?

hey, what is the brass, or gold part that the float needle sits in (rochester quadrajet) it is round and it un screws. I rebuilt my carb and didn't count how many turns out it was, and i just cant get it to run right now. I can't find any info on this anywhere, does anyone know how many turns out it needs to be for a stock 305? all I am finding is "make sure when you take it out you count the amount of turns!" I didn't see that until AFTER it was already done I can probably find a picture of it, but i dont know how to post pictures. any ideas?
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Old Mar 16, 2011 | 08:57 PM
  #2  
DoubleV's Avatar
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Re: quick question. what is this part?

Sounds like you're talking about the seat. If so, it just screws in all the way.
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Old Mar 16, 2011 | 09:30 PM
  #3  
spiffiestpengui's Avatar
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From: redding ca
Car: 1983 z28 and 3000gt twin turbo
Engine: 305 v8
Transmission: auto with b&m shifter
Axle/Gears: i dont know. they're stock
Re: quick question. what is this part?

ok. I know mine isn't screwed all the way down, could that cause it to flood out?
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Old Mar 17, 2011 | 03:37 PM
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five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Yes. The poor float would be closing of the needle against the seat, and fuel would be flowing around the threads.

There should be a gasket under it as well. https://www.thirdgen.org/forums/carb...e-rebuild.html , #55.
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Old Mar 17, 2011 | 04:29 PM
  #5  
spiffiestpengui's Avatar
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15 Year Member
 
Joined: Jan 2010
Posts: 185
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From: redding ca
Car: 1983 z28 and 3000gt twin turbo
Engine: 305 v8
Transmission: auto with b&m shifter
Axle/Gears: i dont know. they're stock
Re: quick question. what is this part?

cool, thank you guys for your help, Im guessing I will also have to re adjust the float after I screw that in all the way, since I adjusted it before when I rebuilt it with in unscrewed a bit....Well, guess I'll go tear this thing apart one last time and see if I cant finally get this carb to work for me
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