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You have to see this carb. what happended?

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Old Oct 8, 2013 | 07:18 PM
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You have to see this carb. what happended?

ive been trying to get this truck to idle right sense I bought it and it acts different every day so I took the carb off to make sure it was clean and not only is it dirty as hell it looks like it blew up inside!!!! look at all the cracks. what happened?

 
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Old Oct 8, 2013 | 07:20 PM
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this carb is trash so what carb do you guys thing I should get? its a 390 4 speed 4x4.
 
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Old Oct 8, 2013 | 07:35 PM
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Summit's house-branded clone of a Holley 3310 is decent.
 
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Old Oct 8, 2013 | 07:36 PM
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here are the numbers off the carb. its a Holley


and some metal chunks in there.
 
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Old Oct 8, 2013 | 07:40 PM
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Bad metallurgy is my guess. What history do you have with it?
 
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Old Oct 8, 2013 | 07:45 PM
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I just bought it a few month ago and it ran ok but always had an idle and dead spot problem. and here I am with a carb that's trashed inside and somehow the truck still ran. im not seeing the summit 3310 carb. but I do need a new card and don't want to spend a ton.
 
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Old Oct 8, 2013 | 07:51 PM
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This is about the least costly new 4-barrel yer going to find: http://www.summitracing.com/parts/su...00vs/overview/

3310 is not the PN of the Summit carb... I posted that to describe what it was.

I'd like to hear your theory on what happened.
 
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Old Oct 8, 2013 | 08:18 PM
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Looks like a typical Holley to me ! Take one out of the box , thrown it in the trash . Waste some money , save the headache of tinkering with it daily !
 
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Old Oct 8, 2013 | 08:21 PM
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I've seen carbs a lot dirtier than that working. Overall failure like that, I suspect it was left in carb boil too long at last overhaul. But only a theory.
 
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Old Oct 8, 2013 | 08:28 PM
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That first picture looks almost like it had water in the fuel and froze.... those passages look like a house with copper water pipe that has frozen...

 
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Old Oct 8, 2013 | 08:39 PM
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DO NOT BUY ANY CARBURETOR WITH THE SILVER FINISH. Edelbrocks are just as bad. Gasoline EATS the silver finish off the carburetor. The gold carbs work fine forever. Buy the same Holley with the original gold finish and it'll be fine.
 
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Old Oct 8, 2013 | 08:47 PM
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Contact holly and see if they will replace it for free and sell the new one on Craig's list then get a summit or other one.
 
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Old Oct 8, 2013 | 08:48 PM
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Looking at the pics again , new carb ? What are the deposits , sand , sugar , sugar sand ? Strange for a " new " carb . Do not care for holley carbs , but , the deposits make me wonder .
 
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Old Oct 8, 2013 | 08:50 PM
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I wonder if someone had beat on the carb as if it had a stuck float in the past. I know that's pretty common for people to use a screwdriver handle/hammer to try to unstick a float.

Or water in the gas that froze.
 
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