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Question Best solvent to clean gummed up carbs?

What would you use to clean up weber carbs that have been sitting for a few years with old gas? As well some crap might have went through carbs.

I have removed the webers and was going to take them apart and soak them in some sort of solvent. lacquer thinner, varsol, spray them with 'carb cleaner' ?

How long would you guys soak your carbs for to help remove residue and build ups? After soaking blow them out with compressed air? Any tricks you guys can think of?

Thank you
Old 06-15-2010, 09:19 AM
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I've found Sea Foam to be very effective at cleaning out carb passages and getting residue off of internal surfaces.
Old 06-15-2010, 09:26 AM
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I kind of like carb cleaner for cleaning carbs.
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Old 06-15-2010, 09:32 AM
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Quote:
Originally Posted by James Brown View Post
I kind of like carb cleaner for cleaning carbs.
Thats why they make it!!

sorry thats the first thing i thought too when i read the title.

Simple green, or i also heard Pine Sol is awesome.
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Old 06-15-2010, 09:41 AM
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Sorry, couldn't resist. Unless your totally rebuilding the carbs, stay away from the real caustic carb dips and soaks, they will eat the gaskets and o-rings. spray on carb cleaner is fine it will eat that old gas and varnish for lunch and not harm gaskets.
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Old 06-15-2010, 09:54 AM
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thanks for the feed back... I wasn't sure if that spray on carb cleaner works as well as soaking in a bath of solvent.

That Sea Foam product sounds good.
Pine Sol? I never thought of using a water based solvent.
Old 06-15-2010, 10:14 AM
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just follow the 1st posters advice and move along. sea foam is the doo-do.
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Old 06-15-2010, 10:37 AM
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Carb cleaning.....

I have found that spray paint stripper works well on the outside of an old carb body. Just be certain to flush the paint stripper off immediately after scrubbing in with a brush. The old gas that invariably dries on the outside of carburetors becomes very soft and can be cleaned off using a stiff bristle toothbrush or other small cleaning brush. The finsihed product will look like a new casting. Don't think that I would use it internally though.
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Old 06-15-2010, 11:08 AM
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I've heard good things about zylene and wintergreen oil. But unless I was doing a full disassembly and gasket replacement, I'd stay away.
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Old 06-15-2010, 12:59 PM
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1st Sea Foam usage / Lucas lubricant

I have just completed my first time usage of Sea Foam. I broke the usage into 3rd s. 1/3 in fuel, 1/3 in oil, and 1/3 in vacuum. It has quieted down the engine but, did not have the smoke that everyone had talked about, only a little. I plan to go through this tank of fuel and will add more, probably 1/2 of 18oz bottle of Sea Foam. That should break up the rest of what ever is in the engine. I've also heard that Lucas lubricant can smooth out the trans and shifting? Any one know anything about Lucas.

Old 10-02-2010, 07:05 AM
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Acetone if you're taking them all the way down and replacing gaskets, seals, etc... Gum Out carb cleaner if you're not...
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Old 10-02-2010, 07:24 AM
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Quote:
Originally Posted by James Brown View Post
I kind of like carb cleaner for cleaning carbs.
Yep,..thats the right "tool" for the job.

We completely disassemble the carbs, place them in a 5 gallon container of carb cleaner and let soak overnight.

Hose them off with water the next day and thoroughly dry them with clean, compressed air before reassembly.

This works very well in the majority of cases.
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Old 10-02-2010, 08:01 AM
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