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post #1 of 36 (permalink) Old 08-14-2009, 12:07 AM Thread Starter
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Gas Tank Cleaner

Found this on another Forum:

How did you clean the inside of the tank?


To remove the rust, I use Vinegar and Salt. Mix as much salt into the vinegar that will dissolve then soak the part in it. It takes 2-3 days sometimes, just depends how bad the rust is. This is the best rust removing recipe that I've ever used. It makes an acid? that attacks oxide. Thats what I was told? The tank is shiny because I sprayed it with WD-40 to stop the flash rust.


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post #2 of 36 (permalink) Old 08-14-2009, 05:18 AM
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i would be scared of the salt and vinager eating the tank as well...I read that Marvel Mystery Oil mixed with gas in the tank is supposed to work real well
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post #3 of 36 (permalink) Old 08-14-2009, 05:23 AM
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rust in tank use the ph+ and a batt charger in versus cheap and effective and leaves a rust resistant surface 2 to 3 days



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post #4 of 36 (permalink) Old 08-14-2009, 07:57 AM
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would this work for the sending unit?... I still have to do my badly rusted tank.. and the sending unit is jsut as bad.. covered in rust.
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post #5 of 36 (permalink) Old 08-14-2009, 10:20 AM
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My tank wasn't rusted but the gas that was left in it had boiled down and basically carmelized. I guess that was a good thing since it stuck to the inside of the tank and prevented it from rusting. That stuff is tough to get out, and if you put fresh gas in the tank, some of the carmel will dissolve in the gas but when it goes through the carbs will harden back up when the air hits it.

I used Westleys Bleach Wite (tire whitewall cleaner) and it quickly dissolved the carmel mess and was easy to clean up, (water cleanup). It even beat lacquer thinner which was the only thing I had found up to that point that would have an effect on the carmel.
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post #6 of 36 (permalink) Old 08-16-2009, 02:12 PM
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Quote:
Originally Posted by clock152 View Post
would this work for the sending unit?... I still have to do my badly rusted tank.. and the sending unit is jsut as bad.. covered in rust.
We'll see if it works. I am having the inside of my tank coated by a local radiator shop using a red rubberized coating used on the inside of aircraft fuel tanks. But my sending unit has rusted pretty bad in the meantime, as I forgot to dip it in Seafoam to prevent the rust.

Ordered a new one from Cheapcycle parts ($54) but will test the rust removal on the old one. If it works, I can always seel the new one on Ebay or something. Will let you know if it works.

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post #7 of 36 (permalink) Old 08-16-2009, 02:25 PM
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cool... I had thought about takeing the dremal to it but didnt want to damage it by grinding on it.
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post #8 of 36 (permalink) Old 08-16-2009, 03:51 PM
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Quote:
Originally Posted by rsawyer View Post
We'll see if it works. I am having the inside of my tank coated by a local radiator shop using a red rubberized coating used on the inside of aircraft fuel tanks. But my sending unit has rusted pretty bad in the meantime, as I forgot to dip it in Seafoam to prevent the rust.

Ordered a new one from Cheapcycle parts ($54) but will test the rust removal on the old one. If it works, I can always seel the new one on Ebay or something. Will let you know if it works.
Unbelievable! Put my rusty one in a Salty Vinegar bath (tupperware container, enough white vinegar to cover meter and some, but not a ton, of salt, put in sun to warm solution speeding ? process) right after my above post and after only 1.5 hrs, it's virtually rust-free. I really like this method as it's harmless to good metal and no hazmat chems to dispose of. Plus it removes the rust internal to the unit where the lever rubs against the gauge bumps, ensuring a good electrical connection. Sure wish I saw this before ordering a new one! Will return/sell new one already shipped. Will also make sure i dip the unit in Seafoam this time!

'89 Vulcan 750

VROC# 30232

HID Headlamp Conversion
V&H Cruzers (great sound)
Kaw V-Force Windshield
Kaw Rear Luggage Rack
Kaw Engine Guard
VN750.COM Grill Cover
W&M Black Magic Saddlebags
Diehard M/F Battery
R/R Replaced/Relocated
Stator Replaced
Voltmeter Installed
Splines Lubed
Metzler 880 Marathons
Front - 110/90-19
Rear - 170/80-15
Carbs Balanced
Carb Mix Adjusted
Fuel Tank Derusted/Lined/Sealed
NGK Iridium Plugs
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post #9 of 36 (permalink) Old 08-16-2009, 05:30 PM
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You'll need to rinse it VERY WELL to get all the salt off.

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
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post #10 of 36 (permalink) Old 08-16-2009, 06:08 PM
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I had thought there was a proceedure using a car battery and something like baking soda? to electronicly remove rust from a tank, alot safer than using salt or bleach...which actually causes metal to rust.

I thought it was in the verses, but did not see it. Did find the following online, but think they are wrong about using stainless steel, seems like it should be iron:



"An electronic method that works well on some tanks is as follows:
use a power washer to remove all loose rust and sediment. I then fill
the tank with water and add a tablespoon of Arm & Hammer soda for every
gallon of water. Then get a battery charger and connect the positive
(red) terminal to a piece of wire attached to a stainless electrode
(such as a stainless bolt or a stainless spoon) and lower the wire and
electrode into the water making sure it does not touch the bottom or
sides. This is the anode. Then attach the negative terminal to the
tank itself (The cathode). If your charger has a meter, be sure some
current is flowing. Fine bubbles will rise from the stainless anode when
cleaning is in progress. Typical cleaning time for moderately rusted
objects is a few hours. Heavily rusted objects can be left over night.
Then wash the inside of the tank again and dry it out with compressed
air or a hair dryer."


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