How do I clean a rusty metal gas tank - Honda ATV Forum
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post #1 of 11 (permalink) Old 12-23-2012, 07:35 PM Thread Starter
BND
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How do I clean a rusty metal gas tank

How would I go about cleaning my Metal gas tank? The inside is all rusty and I wanna clean it so no rust will get into my brand new carb.
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post #2 of 11 (permalink) Old 12-23-2012, 09:05 PM
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Drain and remove the tank. Get some BBs, drop in tank and shake. Remove BBs, rinse out with fuel, repeat. This is how I've done it I'm sure others will give some good suggestions also. They make coatings that you put in the tank after its cleaned that you might want to check out. Good luck.
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post #3 of 11 (permalink) Old 12-24-2012, 03:00 AM
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Try about a cup or so of course sand and shake like you got a hold of the devil. poor out, and repeat until there are no more rust chunks in the sand that your pouring out. if you decide to use the BB's instead be careful not to shake the tank to hard, as you could shot ping the tank, that would look like a 1000 little pumps on the tank, the sand is more forgiving. use water to flush the sand out and then dry with compressed air. I would recommend buying a gas tank sealant kit. the auto parts store usually has the tank repair kits. Good Luck!!!!!!!!!

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post #4 of 11 (permalink) Old 12-24-2012, 06:11 AM
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Ive done this two ways one kerosene and gravel shake till rust stops or small non rusty chain ans shake till rust stops shake repeatedly, I woluld not recomend sand unless you plan on removing pet cock eiter way when done rinse several times kerosene let air dry. back when i used to do this did not know of seal kits usually worked with out, they do make sealer kits now and most gas tank or radiator shops will reseal for ya not to expensive.
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post #5 of 11 (permalink) Old 12-24-2012, 07:07 AM
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I throw in some nuts and bolts along with some diesel fuel and shake it for awhile. Then just drain it and it's clean.

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post #6 of 11 (permalink) Old 12-24-2012, 07:25 PM
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Welcome from the Volunteer state. All above are good suggestions. Kerosene and sheet metal screws works well also. Kream makes a great tank sealant. Just make sure that you get all heavy rust out of the tank.

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post #7 of 11 (permalink) Old 01-01-2013, 04:07 PM
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Once you get the loose crap knocked out, treat it with Ospho. It will chemically turn the rust into iron, then you can seal it with barbee tank liner called Tank Saver. Here is the link to their catalog.The Barbee Company

Here is the link for ospho. http://www.ospho.com

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post #8 of 11 (permalink) Old 01-01-2013, 04:11 PM
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I have used Kreem in the past and don't like it as well as Barbee. As if it does start to rust again, and then peel, you are stuck with the Kreem peeling and cracking. Barbee can be removed chemically.

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post #9 of 11 (permalink) Old 01-01-2013, 04:37 PM
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fill with muriatic acid. don't inhale the fumes its nasty. after about 15-20 minutes pour it out into a sealed container for disposal. rinse thoroughly with WATER. now fill it with about 1/4 water and pour in some baking soda to neutralize the acid. shake it around real good. rinse it out with water a few more times. now fill it with acetone to absorb all the moisture in the tank. it will immediately flash rust if you dont fill it with gas or some kind of coating. I prefer red kote over kreem. kreem is garbage. red kote is awesome stuff. I've used numerous methods to fix many metal tanks as i repair and restore a lot of 3 wheelers and muriatic acid is hands down the best and easiest way. google it.
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post #10 of 11 (permalink) Old 01-02-2013, 07:07 AM
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Quote:
Originally Posted by Kevron View Post
Drain and remove the tank. Get some BBs, drop in tank and shake. Remove BBs, rinse out with fuel, repeat. This is how I've done it I'm sure others will give some good suggestions also. They make coatings that you put in the tank after its cleaned that you might want to check out. Good luck.
I did it this way and it worked great. Had some trouble getting ALL the BB's out afterwards, so plan on a bunch of shaking. I was concerned about the surface rust originally but afterwards it looks brand new inside.

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