General Category > Quadrajet Carb Talk and Tips
The BEST Cleaning Method ?
PMD1969:
--- Quote from: omaha on March 12, 2013, 11:10:12 PM --- Hey, I know this is all very experimental at this stage. I am trying various concentrations and various cleaners. Anyway, glad to hear of the good results. the trick I think is to find the "magic" combo of heat-time-water-cleaner. The roasting pan that I used is the kind that you would find at the VFW you know when they make a bunch of sloppy joes or something like that. It is kind of rectangular in shape. But the one I had could put out some SERIOUS heat if necessary. The one I had (I unfortunately broke it while moving) was rectangular and was about maybe 20x12 and it had a stamped metal lid with a little round vent thingy on top. It had kind of a enamel lined kind of large pan that fit down into the heating part made of metal. I was not too concerened because I saw an updated version fpr sale at wally world. I have not bought another one yet because I have a small sonic cleaner that goes up to about 180 degrees. I was thinking that it may be possibly a good idea to separate the aluminum base from the main and top castings and maybe even come up with a special mix just for the aluminum parts. the mag wheel cleaner sounds like a good idea. It has a lot of acid in it though so just be careful with it. Like I said, a soak in a bucket of diesel as a preliminary cleaning also serves as a good way to loosen up stuck together parts, kind of like a degreaser and penetrating oil. Let the experimenting continue!!
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The problem that I have now is getting the scale from the water off of the bodies. I am going to try CLR. If it takes it off I will then blow the holes and passages out with carb cleaner and compressed air.
Hopefully by then I will have it where it will be clean and ready to go back together. My only concern is that applying something to give it a coating to resist scale and other residue.
Have any ideas?
Shark Racer:
I'm experimenting with replating on a junk carb, what I can tell you is that muriatic acid will get any scale off... ;)
PMD1969:
--- Quote from: Shark Racer on March 14, 2013, 12:44:00 PM ---I'm experimenting with replating on a junk carb, what I can tell you is that muriatic acid will get any scale off... ;)
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I have heard way too many warnings about using acid so no thanks
Ethan1:
--- Quote from: PMD1969 on March 15, 2013, 08:07:45 AM ---I have heard way too many warnings about using acid so no thanks
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I agree. Check this out: http://forums.sohc4.net/index.php?topic=63776.0
Don't know, but CLR might work as well.
Shark Racer:
--- Quote from: PMD1969 on March 15, 2013, 08:07:45 AM ---I have heard way too many warnings about using acid so no thanks
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Curious what the warnings were you've heard? (for my sake :) )
Aside from wear gloves and goggles, of course. Muriatic acid is HCL, so as long as you're careful it'll be OK. It is also easy to dispose of as HCl(Hydrochloric acid) + NaOH (sodium hydroxide, baking soda) = H2O(water) + NaCl (table salt). In other words, carefully pour some baking soda in there and it will eventually just turn into salt water (and salt deposits).
And this is by far and wide not something I'd recommend for rebuilding *every* carb. It also has to be followed up with replating. A few seconds in acid will take most of the chromate off the carb.
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