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Title: rusty tanks Post by: scannerzer on November 04, 2012, 01:11:10 PM Has any one any ideas on an easy way to clean rust from the inside of a petrol tank.Alan's dr750's been layed up a while
and the inside of both tanks are covered in surface rust. We have thought about electrolysis but don't know how viable it is on this sort of area or even if we want to fill a tank with washing soda ! Ok guys over to you Title: Re: rusty tanks Post by: hunter on November 04, 2012, 02:03:38 PM You could try this.
http://www.ebay.co.uk/itm/130781698869?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649 Title: Re: rusty tanks Post by: Manky Monkey on November 04, 2012, 02:49:06 PM Handful of gravel, a splosh of petrol & lots of vigorous shaking.
Title: Re: rusty tanks Post by: one arm bandit on November 04, 2012, 05:11:06 PM nuts bolts and a splosh of derv for us more economical folk
Title: Re: rusty tanks Post by: Olds on November 04, 2012, 05:42:25 PM nuts bolts and a splosh of derv for us more economical folk If you know anyone with a cement mixer, saves a lot of effort if you gaffer tape it to the outside ;DTitle: Re: rusty tanks Post by: scannerzer on November 04, 2012, 06:53:22 PM all good ideas thanks gents
Title: Re: rusty tanks Post by: trev on November 05, 2012, 11:34:55 AM as above but you could wrap it in a blanket and stick it in the washing machine. ;D
Title: Re: rusty tanks Post by: nabsim on November 05, 2012, 01:59:22 PM as above but you could wrap it in a blanket and stick it in the washing machine. ;D Would that be on a hot or a cold wash Trev and what powder do you recommend. Oh yes, what about conditioner? :) Title: Re: rusty tanks Post by: scannerzer on November 05, 2012, 07:45:36 PM ;D ;D ;D
Title: Re: rusty tanks Post by: trev on November 06, 2012, 01:39:57 PM as above but you could wrap it in a blanket and stick it in the washing machine. ;D Would that be on a hot or a cold wash Trev and what powder do you recommend. Oh yes, what about conditioner? not sure which powder would be best,but if you used a GOOD conditioner surely it would come out GOOD. ;D :) Title: Re: rusty tanks Post by: fifer on November 06, 2012, 06:28:38 PM I just drop my spare set of false teeth inside the tank ;D
. . Title: Re: rusty tanks Post by: spanners on November 06, 2012, 09:03:00 PM STEREDENT :D
Title: Re: rusty tanks Post by: morrag on November 06, 2012, 10:20:12 PM What, it takes out the dents at the same time? remarkable!!! ::) ::)
Title: Re: rusty tanks Post by: dr big750 on March 23, 2013, 06:06:40 PM Finally got around to trying to clean out my fuel tanks of the Dr 750 Big,
This is what she looks like (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/31032012854.jpg) With lack of use during the last few winters and sweating of the tank this is the condition inside (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/180320131134_zpse08da790.jpg) and the other one, yes two tanks fitted on this beast (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/230320131166_zps1532205a.jpg) So I thought I'd try electrolysis as I reckoned molasses = sugar and would be near impossible to wash out of the tank as it is impossible to completely drain The ingredients (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/180320131132_zpscdb60c08.jpg) Mixed up 2 desert spoonfuls of soda crystals to 4 litres of water, and it took 4 1/2 gallons to fill this one tank (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/180320131133_zps7b9208ee.jpg) Used a bit of 8mm threaded for the anode rod as it was available with a piece of rubber on the end to stop it shorting out (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/180320131135_zps63021c72.jpg) A few holes to allow the hydrogen gas to escape (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/180320131136_zps2e24fae0.jpg) Wired up the battery charger, positive to the anode and negative to the tank (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/180320131137_zpse5152529.jpg) (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/180320131138_zps63754785.jpg) Title: Re: rusty tanks Post by: dr big750 on March 23, 2013, 06:27:56 PM The battery charger was supplying about 2 amps to the process
(http://i509.photobucket.com/albums/s336/dr-big750/Bikes/180320131140_zps83af566e.jpg) So let this do it's thing and the next day the 8mm rod looked like this (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/190320131161_zps9f29230e.jpg) Cleaned it and put it back in After 3 days the rod looked like this, seems to be collecting something (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/190320131161_zps9f29230e.jpg) Cleaned the rod again and put it back in (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/210320131163_zpse086888e.jpg) After 5 days the rod had collected rust to look like this (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/230320131164_zps0bda4ad1.jpg) After a week I emptied the solution out and filtered it into the second tank, to start on it After washing the crude and remainder of the loose rust and gunge this is how it looked (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/230320131167_zps5a50d0cb.jpg) Not perfect but clean enough to not give any bother, so it needed to be dried pretty quick before it began to rust again (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/230320131169_zps837c4194.jpg) Finally found a dual use for her indoors hair dryer, When fully dry I'll wash out with diesel and then with diesel and some engine oil mixed and leave this in it until ready to fit to the bike Title: Re: rusty tanks Post by: scannerzer on March 23, 2013, 06:35:30 PM tell the truth alan ,the hair dryer's your init :D :D
looks good made some difference,hows the other one coming along Title: Re: rusty tanks Post by: dr big750 on March 23, 2013, 06:48:49 PM Only started the other one today and emptied this one, bugger of a job to get empty, got it sitting on top of the range to dry it out now.
Title: Re: rusty tanks Post by: Tony oily bike on March 24, 2013, 08:43:48 AM Frosts have this kit for non-plastic/fibreglass tanks.
http://www.frost.co.uk/por15-motorcycle-fuel-tank-repair-kit.html Title: Re: rusty tanks Post by: Manky Monkey on March 24, 2013, 02:05:00 PM Amazing what you can learn here. Maybe I should've listened more to those school chemistry lessons.
Title: Re: rusty tanks Post by: gsxbobber on March 31, 2013, 06:39:52 PM I am a cheap skate and poor so a tip if anyone is interested i used aquarium gravel the amount depends on size of the tank shake untill yours arms fall of empty tank,and repeat untill all the crap is removed i managed to remove 90% of 20 year old rust.
Title: Re: rusty tanks Post by: triker_Chewie on April 01, 2013, 05:16:45 AM Do that first then the electric job
Title: Re: rusty tanks Post by: morrag on April 01, 2013, 11:52:42 AM Is that with the fish in or out of the tank!! ;D ;D ;D ;D ;D ;D
Title: Re: rusty tanks Post by: dr big750 on April 07, 2013, 07:50:13 AM Process started on tank 2 and this is after 2 days
(http://i509.photobucket.com/albums/s336/dr-big750/Bikes/250320131170_zps97fcce6e.jpg) After a week of electrolysis this is what came out (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/030420131177_zps1fbbc1e4.jpg) Good thing about soda crystals is that it can be deposed of down the same drain as the washing machine as they are not harmful (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/030420131178_zps6a1cdfb2.jpg) Getting dirtier as it drains (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/030420131178_zps6a1cdfb2.jpg) Title: Re: rusty tanks Post by: dr big750 on April 07, 2013, 07:56:23 AM Tail end of the tank was pretty gungy
(http://i509.photobucket.com/albums/s336/dr-big750/Bikes/030420131179_zps90275877.jpg) 2nd fill of water (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/030420131180_zps07fa15a8.jpg) (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/030420131181_zpsf7e0a208.jpg) 3rd fill and most of the muck is out (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/030420131182_zps7fa059f0.jpg) Just a few speckles of rust as you can see against the wall (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/030420131183_zps03afc3a1.jpg) Title: Re: rusty tanks Post by: dr big750 on April 07, 2013, 08:10:18 AM 4th fill of water and shaken like a regular Harlem Shake dancer
(http://i509.photobucket.com/albums/s336/dr-big750/Bikes/030420131184_zpseb843249.jpg) All water out and seems to be clean enough to do, ran a magnet around the inside to collect any loose lumps of rust, but nothing in there (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/030420131185_zps57086021.jpg) Removed the remainder of the water with an oil drainer pump up sucker as it's impossible to shake out the last litre from these tanks, filled then with a gallon of diesel shook again and drained and then added a gallon of diesel to hopefully stop or slow the rust till I get then fitted. The 8mm bar than I had used as an anode had eaten down to about 4mm in places, must be why they call it the sacrificial anode (http://i509.photobucket.com/albums/s336/dr-big750/Bikes/030420131186_zps338896a7.jpg) Title: Re: rusty tanks Post by: Manky Monkey on April 07, 2013, 09:35:27 PM That's amazing!
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