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How do you get rust out of the carb

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Frank

08-06-2003 16:16:33




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I have a carb. that is off an 0-4. I put the carb in the gallon can thats spose to clean it. The cleaning solution doesn't seem to remove the rust.

Does anyone know how to dissolve the rust?

At what point do you know that you need to buy a different carburator?

thanks for any advice




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jal-SD

08-07-2003 07:24:42




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 Re: How do you get rust out of the carb in reply to Frank, 08-06-2003 16:16:33  
Frank, go over to the Case Board archives, about page 5 or so under the "author" section & look for "Electrolysis - Have you tried it" written by Baggsy-Wy. He's got a link to the Arm & Hammer page that tells you how to set up an electrolysis process that will remove rust. (There are several artilcles there that discuss this, most by Baggsy. Look at them, too.) I was a "skeptic" so I had to try it. YOU WON'T BELIEVE HOW WELL IT WORKS! I cleaned up a carb that was a solid mass of rust using this method. I also cleaned up an 8" Cresent wrench that was so rusty you couldn't read the letters on the handle, it works great now! (My $0.02 worth. jal-SD)

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rustyfarmall

08-07-2003 08:13:38




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 Re: Re: How do you get rust out of the carb in reply to jal-SD, 08-07-2003 07:24:42  
jal-SD, could you elaborate on the electrolysis method? I have tried it also, and it did work, but seemed to be a very slow process. Did you keep the solution warm? how much current did you supply? I am convinced it will work.



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jal-SD

08-07-2003 14:11:18




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 Re: Re: Re: How do you get rust out of the carb in reply to rustyfarmall, 08-07-2003 08:13:38  
Yep, its a slow process. I used a plastic 5 gal bucket & suspended the part from copper wire wrapped around an old fiberglass arrow to keep it off the bottom of the bucket. I used a hose clamp to tie the wire to the part-gotta change the location from time to time, so it all gets a chance to clean. I also used a wire bursh from time to time to loosen the rust, changed the clamp's location then. I also just wrapped the wire around some things, but a clamp worked best-I think a good connection is really important. BTW, don't figure on using the hose clamp again. I connected the charger's clip to the wire. (Trust me, you DO NOT want the clip in the solution & don't ask how I know this.) I left the sacrificial tin sheet long enough so it was above the solution & connected directly to it. Make sure the part is completely submerged. I just used my battery charger on trickle charge & left it for several days. Water wasn't warm-did this last fall in garage when it was freezing outside. I cut up a coleman fuel can for the "sacrificial" metal thats needed. I'd used other "tin" cans, but the flat side of a coleman can worked the best-I just split the can down the narrow sides & cut across the top & bottom w/tin snips. (Careful, sharp edges can cut fingers-don't ask!) Biggest thing is that the part & the sacrificial tin chunk cannot touch, current must pass through the solution to work best. (You will be able to see movement in the solution. Rust actually moves from the part to the sacrificial tin chunk.) Don't remember which terminal goes where, gotta read Baggsy's article again to refresh my old brain. Getting a bad case of CRS disease, I guess. (Another $0.02 worth. jal-SD)

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T im Kincaid

08-06-2003 23:26:47




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 Re: How do you get rust out of the carb in reply to Frank, 08-06-2003 16:16:33  
Frank, For a good removal of all rust try this. Dip the 2 castings in a plastic container of muriatic acid for 5 to 8 minutes then take them out rinse with water and then with lacquer thinner then spray the inside with WD40 and blow out with compressed air . You will be very satisfied. See Ya, Tim K.



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rustyfarmall

08-07-2003 05:14:38




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 Re: Re: How do you get rust out of the carb in reply to T im Kincaid, 08-06-2003 23:26:47  
I've wondered about using this trick on the carburetor, think I will give it a try next time I encounter a rusty one.
Muriatic acid is the best way I've found to clean a fuel tank, only makes sense it would work on the carb also.



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Wayne Swenson

08-06-2003 20:50:08




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 Re: How do you get rust out of the carb in reply to Frank, 08-06-2003 16:16:33  
I have used a glass bead blaster on many carburetors.
Just remember that the beads will get into the smallest places imaginable so cover the places you don't want beads. It is best to have ALL jets, throttle, & choke plates & shafts removed.
Pressurized spray cans of carb cleaner and an air blow gun will help finish the job.



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Guy

08-06-2003 19:54:41




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 Re: How do you get rust out of the carb in reply to Frank, 08-06-2003 16:16:33  
I soak them in break fluid with works well. Then use a small wire wheel on a dremel tool for areas that need it.



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TnTurkey

08-06-2003 18:46:10




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 Re: How do you get rust out of the carb in reply to Frank, 08-06-2003 16:16:33  
Frank, although my Zenith carburetor was not rusty, lacquer thinner did a good job of cutting the varnish residue left by the gas. For the outside of carb I used a Dremel with a fine wire brush which made it look new again. I recently tried a product called Evapo-Rust (available at Wal-Mart paint section) which did a good job removing rust; however, others on this great forum may know of better products/methods.

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bus driver

08-06-2003 16:38:03




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 Re: How do you get rust out of the carb in reply to Frank, 08-06-2003 16:16:33  
Cleaners may help soften the rust and faciltiate breaking it into smaller pieces, but my best success is mechanical cleaning- brush, wire, scribe tip, screwdriver- what ever fits the place being cleaned. Use them gently and patiently. Compressed air is useful for removing the loosened rust. Holes should be cleaned with smooth wire- especially the ones in the jets.



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