Cleaning exploded charcoal canister bits from carb passages? - JeepForum.com
 
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post #1 of 6 Old 04-20-2019, 10:33 AM Thread Starter
Cutlass327
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Cleaning exploded charcoal canister bits from carb passages?

Anyone have a trick to remove the bits of charcoal from a carb? It has been torn down, cleaned up, and put back together, but still not running right. Is there anything safe for the metal but can eat away the charcoal? This isn't on mine, but a friend has run into this issue, and there are many people on here with more ideas, we need some new ones. A carb soak didn't help, compressed air thru the passages didn't, either. We're thinking there is something lodged in a small passage we cannot reach.


Quadrajet from a GM 4.3V6 is the carb in question, if anyone is wondering.


Rick

1978 CJ5 5.0HO/T177/D300, '86 D30/D44 WT axles, 'glass body, 31x10.5 BFG A/T, TDK galv'd frame - DD and weekend toy


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post #2 of 6 Old 04-20-2019, 02:51 PM
oldschool74cj5
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hello
unfor i dont think there really is any chemical that will dissolve carbon and not hurt the pot metal of the carb. the only thing i have done for really cleaning a carb is soak it in solvent in a electro sonic cleaner. then the vibrations help the solvent get things loose and out. there like a ultrasonic but alot slower of a vibration. but if you dont have access one they are pricey. other then that i would just get a different carb like a overhauled one or a new edelbrock.


stephan



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post #3 of 6 Old 04-20-2019, 04:43 PM
scooby533
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I use an Ultra Sonic cleaner on all my carbs and small engine parts. Iíll usually use simple green almost boiling hot in the cleaner. Run for 15 minutes. Does an outstanding job on the clean up, then rinse in hot water and compress air dry.

Shawn
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post #4 of 6 Old 04-20-2019, 08:18 PM Thread Starter
Cutlass327
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I'll have to ask him if he knows anyone with one. I was perusing Amazon, yeah... pricey!!

Rick

1978 CJ5 5.0HO/T177/D300, '86 D30/D44 WT axles, 'glass body, 31x10.5 BFG A/T, TDK galv'd frame - DD and weekend toy


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post #5 of 6 Old 04-21-2019, 02:07 PM
Boojo35
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Working in the dealership in the 80's we ran into this occasionally. The old school stinky carb soak tanks would not touch it. Some carbs were simply non serviceable due to it.

If you cannot fix it with a hammer then it has to be an electrical problem.
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post #6 of 6 Old 04-21-2019, 07:51 PM Thread Starter
Cutlass327
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That's what I am afraid of. He just doesn't have the money right now for the $560 replacement carb, so unless he can find one in the bone yard, he's stuck with poor MPGs from the Holley Q-juet replacement that he hates. He was getting 19MPG before with the Q-jet that got plugged up.

Rick

1978 CJ5 5.0HO/T177/D300, '86 D30/D44 WT axles, 'glass body, 31x10.5 BFG A/T, TDK galv'd frame - DD and weekend toy


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