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.

Quadrajet

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Old Oct 6, 2007 | 09:38 AM
  #1  
blackandgoldl69's Avatar
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Joined: Jun 2007
Posts: 428
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From: Elizabethtown,Ky
Car: 1984 camaro z28
Engine: L69 H.O
Transmission: 700r4
Axle/Gears: 3.73
Quadrajet

i have a 1984 camaro l69 with the stock carb and every time you start it smokes and dosent stop. I know its not oil or coolant and if you stick your head down by the exhaust you almost pass out from the fumes and i just check two of my plugs and they were both soaking wet with gas. It still runs pretty good and starts up fine anyone have an idea whats wrong?
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Old Oct 6, 2007 | 11:10 AM
  #2  
scooter500's Avatar
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Joined: Sep 2007
Posts: 598
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From: Hampton, Virginia
Car: 87 Camaro Z-28
Engine: 305 LG4 w/ E4ME carb
Transmission: 700R4
Axle/Gears: 2.73
Re: Quadrajet

curious, is your choke electrafried w/ a wire going to it?
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Old Oct 6, 2007 | 06:05 PM
  #3  
blackandgoldl69's Avatar
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Joined: Jun 2007
Posts: 428
Likes: 2
From: Elizabethtown,Ky
Car: 1984 camaro z28
Engine: L69 H.O
Transmission: 700r4
Axle/Gears: 3.73
Re: Quadrajet

Yes it has an electric choke
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Old Oct 6, 2007 | 07:07 PM
  #4  
Quasi-Traction's Avatar
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Joined: Apr 2006
Posts: 117
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From: Vancouver, WA/Portland, Orey-gun
Car: 1986 Camaro Berlinetta
Engine: 4 bolt 355ci
Transmission: Borg Warner T-5
Axle/Gears: 3.73 Posi Disc Rear
Re: Quadrajet

Originally Posted by blackandgoldl69
i have a 1984 camaro l69 with the stock carb and every time you start it smokes and dosent stop. I know its not oil or coolant and if you stick your head down by the exhaust you almost pass out from the fumes and i just check two of my plugs and they were both soaking wet with gas. It still runs pretty good and starts up fine anyone have an idea whats wrong?
Well, I'm sure you've figured it out, but you ARE running pig rich.

Check your Mixture Control Solenoid. Its on the top of the carb, driver side and should have a 2 wire plug going into it.

Does it bog or hesitate at all on acceleration while driving?
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Old Oct 6, 2007 | 07:44 PM
  #5  
Damon's Avatar
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Joined: Sep 1999
Posts: 7,072
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From: Philly, PA
Re: Quadrajet

Is the vacuum canister (choke pull-off) on the passenger/front of the carb working and properly adjusted? It keeps from flooding the motor by popping the choke open a smidge immediately after the engine is started. Once the motor has been running for a minute or so and the choke spring relaxes it has no effect, but for that first minute or so it's operation is critical.

After that I would ask about whether the choke is opening at all after a minute or two. Choke elements go bad (actuall the little heater in them goes bad) or the electrical supply to the choke can have problems. And mechanical binding/stickyness in the linkages can cause problems, too.

Various choke-related problems on QJets are fairly common, especially on old/stock carbs.
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Old Oct 7, 2007 | 09:26 PM
  #6  
blackandgoldl69's Avatar
Thread Starter
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Joined: Jun 2007
Posts: 428
Likes: 2
From: Elizabethtown,Ky
Car: 1984 camaro z28
Engine: L69 H.O
Transmission: 700r4
Axle/Gears: 3.73
Re: Quadrajet

I really need to figure this out i went out to start it today and it wouldnt even stay runnig i had to take out all the plugs and clen them they were flooded with gas after cleaning them i got it to run right for about five minutes and then they were flooded again
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