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Petrol Tank Cleaning & De-Rustingng

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red leader one View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote red leader one Quote  Post ReplyReply Direct Link To This Post Topic: Petrol Tank Cleaning & De-Rustingng
    Posted: 12 Apr 2015 at 16:13
http://www.realclassic.co.uk/techfiles/petrol_tank_cleaning_and_rust_removal.html

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Post Options Post Options   Thanks (0) Thanks(0)   Quote csx355 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Apr 2016 at 23:25
I have had pretty good results using a diluted solution of phosphoric acid. You can generally pick up a concentrated bottle (1lt or 5lt) at 80% on ebay.  I use it as it is for de-rusting small parts prior to zinc plating and have cleaned some pretty flakey tanks to good effect with a solution left in the tank over a couple of days. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 14 Apr 2016 at 08:12
I've tried various ways and found phosphoric acid to be the best. Leave a rusty item immersed in the stuff and the rust is dissolved leaving a clean rust free surface, if slightly pitted.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jmee54 Quote  Post ReplyReply Direct Link To This Post Posted: 14 Apr 2016 at 10:04
I used Hydrochloric acid, which works really well and has the added bous of cleaning your sinuses and descaling your lungs! LOL
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ken-Guzzibear Quote  Post ReplyReply Direct Link To This Post Posted: 14 Apr 2016 at 13:11
I bought the Frosts fuel tank kit, cleans , de rusts and prepares the tank for the lining
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jim Mac Quote  Post ReplyReply Direct Link To This Post Posted: 14 Apr 2016 at 14:28
Originally posted by jmee54 jmee54 wrote:

I used Hydrochloric acid, which works really well and has the added bous of cleaning your sinuses and descaling your lungs! LOL

and it is good for disposing of a body............. allegedly
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ken-Guzzibear Quote  Post ReplyReply Direct Link To This Post Posted: 14 Apr 2016 at 19:44
Naaa feed 'em t'the pigs Turkish ...lol
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Grahame Quote  Post ReplyReply Direct Link To This Post Posted: 14 Apr 2016 at 20:02
Originally posted by Jim Mac Jim Mac wrote:

Originally posted by jmee54 jmee54 wrote:

I used Hydrochloric acid, which works really well and has the added bous of cleaning your sinuses and descaling your lungs! LOL


and it is good for disposing of a body............. allegedly


Originally posted by Ken-Guzzibear Ken-Guzzibear wrote:


Naaa feed 'em t'the pigs Turkish ...lol


Surely we need to start a new thread in the Technical Services or Frequently Asked Questions section? ☠ 😀
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jmee54 Quote  Post ReplyReply Direct Link To This Post Posted: 14 Apr 2016 at 20:58
I have a better way to dispose of bodies. I have a kiln plenty big enough to turn a body to gas. I can make glazes out of ash too!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jerry atric Quote  Post ReplyReply Direct Link To This Post Posted: 14 Apr 2016 at 21:04
Oh!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ReggieV Quote  Post ReplyReply Direct Link To This Post Posted: 14 Apr 2016 at 22:12
I've used "Flowliner bio-rust" a few times. You just add the correct amount of water to the crystals and leave it in the tank. This is absolutely safe (in my experience) on paintwork and can be re-used after filtering out the rust particles, definitely the safest way that I've used. It's probably a very very mild acid when made up, but "tastes" nowhere near as acidic as phosphoric acid......sorry but I didn't have any Litmus paper to hand so not totally scientific.
On the last tank that I de-rusted recently, the tank was full of rust having been standing for 15 years, I ended up with more than three handfuls of rust, and this was after using flowliner.  I did give it a final rinse with 50% water/50%  phosphoric acid 80%for good luck mainly as rust was embedded in the welded seams.
 
Link for flowliner below.


Edited by ReggieV - 14 Apr 2016 at 22:17
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Post Options Post Options   Thanks (0) Thanks(0)   Quote csx355 Quote  Post ReplyReply Direct Link To This Post Posted: 15 Apr 2016 at 19:26
Originally posted by Jim Mac Jim Mac wrote:

Originally posted by jmee54 jmee54 wrote:

I used Hydrochloric acid, which works really well and has the added bous of cleaning your sinuses and descaling your lungs! LOL

and it is good for disposing of a body............. allegedly

Do I sense some form of Italian 'family' theme here? 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rob Farmer Quote  Post ReplyReply Direct Link To This Post Posted: 17 Apr 2016 at 19:45
White vinegar works very well for cleaning tanks out. It's also very good for cleaning the "redcoat" lining out of the old BMW tanks. A couple of bits of chain and a full tank of vinegar. Agitate every couple of days and leave it for a week in total.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pariah Quote  Post ReplyReply Direct Link To This Post Posted: 03 Dec 2016 at 09:17
I read an article in classic bike where they used abrasive stone pebbles and a small electric drum concrete mixer. Wrap the tank in old blankets, place in mixer, rotate for an hour, voila. They may have finished off with an acid etch.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Glawster Quote  Post ReplyReply Direct Link To This Post Posted: 03 Dec 2016 at 10:15
For cleaning the inside of rusty fuel tanks I don't think there's a better method than electrolysis with Soda Crystals.
Fill the fuel tank with water with a couple of cupfuls of soda crystals added (they're in Asda next to the washing powder).
Make an anode out of a strip of ferrous metal and dip into the tank - but insulated from touching the tank.
Connect a battery or charger positive to the anode and negative to the tank.
Leave overnight and this is what's on the anode.
Repeat a couple of times until no more deposition is seen.
Then coat in POR15.
Works every time for me!


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