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JC T ONE
Joined: 30 Oct 2008 Posts: 1139 Location: Denmark
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Posted: Fri Sep 19, 2014 7:18 pm Post subject: Blocked fuel tank |
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Hi all,
I have bought a car thats been standing for 31 years.
The old petrol have turned into oil again, and hardened up
Tried to pour some fresh petrol into the tank, but after days of waiting = nothing
So what do I use to attack this with ? Coca Cola ?
good weekend to all _________________ http://www.eurods.eu/wp/index.html |
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kevin2306
Joined: 01 Jul 2013 Posts: 1359 Location: nr Llangollen, north wales
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Posted: Fri Sep 19, 2014 8:43 pm Post subject: |
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This
http://www.frost.co.uk/cleaner-degreaser-por15-marine-clean.html
Buy the large size and soak with very hot water.
I used it on an old motorcycle tank that had a lot of black petrol gunk (like black thick tar). I insulated the tank before filling it with the solution to keep the temps up for longer...came up like new.
Kev |
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JC T ONE
Joined: 30 Oct 2008 Posts: 1139 Location: Denmark
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Posted: Sat Sep 20, 2014 2:26 am Post subject: |
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kevin2306 wrote: | This
http://www.frost.co.uk/cleaner-degreaser-por15-marine-clean.html
Buy the large size and soak with very hot water.
I used it on an old motorcycle tank that had a lot of black petrol gunk (like black thick tar). I insulated the tank before filling it with the solution to keep the temps up for longer...came up like new.
Kev |
Hi Kev,
not sure this will do it ? its like concrete = rock hard, never seen anything like it
The tank did have petrol in it from 3 years ago, when an attempt to start the car was made, and even thou this petrol has been soaking the 28 years old remains it had NO impact / effect what so ever.
think I need some kind of acid for this job ? maybe flush the tank with water, and then heat it with a gas burner from underneath ? _________________ http://www.eurods.eu/wp/index.html |
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COMMAD
Joined: 12 Dec 2011 Posts: 176 Location: Gold Coast. Australia
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Posted: Sat Sep 20, 2014 4:03 am Post subject: |
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HEAT!!!!! You might blow your head off, Think again, be WARNED!!!!!! |
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ukdave2002
Joined: 23 Nov 2007 Posts: 4105 Location: South Cheshire
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Posted: Sat Sep 20, 2014 7:32 am Post subject: |
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I used some cheap "gun wash" thinners on a wacker plate tank, it had stood half full for about 10 years and gone solid. It seemed to dissolve all the solid contents.
Thinking back to schoolboy chemistry..... what you have is some form of oxidised hydrocarbon, so it should be able to be broken down by water or alcohol?
Dave |
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Old Wrench
Joined: 23 Dec 2013 Posts: 226 Location: Essex and France
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Peter_L
Joined: 10 Apr 2008 Posts: 2680 Location: New Brunswick. Canada.
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Posted: Sat Sep 20, 2014 10:38 am Post subject: |
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Perhaps consider cutting away a large area on top of the tank to allow mechanical access to remove the majority of the crud, then chemical clean, steam clean and then weld the piece back in. Pretty it up and paint. |
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kevin2306
Joined: 01 Jul 2013 Posts: 1359 Location: nr Llangollen, north wales
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Posted: Sat Sep 20, 2014 1:16 pm Post subject: |
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JC T ONE wrote: | kevin2306 wrote: | This
http://www.frost.co.uk/cleaner-degreaser-por15-marine-clean.html
Buy the large size and soak with very hot water.
I used it on an old motorcycle tank that had a lot of black petrol gunk (like black thick tar). I insulated the tank before filling it with the solution to keep the temps up for longer...came up like new.
Kev |
Hi Kev,
not sure this will do it ? its like concrete = rock hard, never seen anything like it
The tank did have petrol in it from 3 years ago, when an attempt to start the car was made, and even thou this petrol has been soaking the 28 years old remains it had NO impact / effect what so ever.
think I need some kind of acid for this job ? maybe flush the tank with water, and then heat it with a gas burner from underneath ? |
Worked for me on the residue left in a tank that had stood for over 25 years. inside came up like a new one, its pretty awesome stuff.
Kev |
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ukdave2002
Joined: 23 Nov 2007 Posts: 4105 Location: South Cheshire
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Posted: Sat Sep 20, 2014 6:01 pm Post subject: |
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The more I think about this I think water is the answer. Put hot water into the tank if you have a way of keeping the tank hot without naked flames, great, see if it starts to disolve the solid stuff...it may take a few flushes.
Cheers
Dave |
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colwyn500
Joined: 21 Oct 2012 Posts: 1745 Location: Nairn, Scotland
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Posted: Sat Sep 20, 2014 6:07 pm Post subject: |
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I used hot water, phosphoric acid, waterbased degreaser and a few old nuts, bolts and washers which I gently agitated every so often.........and lots of patience. |
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JC T ONE
Joined: 30 Oct 2008 Posts: 1139 Location: Denmark
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Posted: Sat Sep 20, 2014 6:09 pm Post subject: |
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Hi all & thanks for all your good advice will try some of them (wont cut the tank) and report back. _________________ http://www.eurods.eu/wp/index.html |
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JC T ONE
Joined: 30 Oct 2008 Posts: 1139 Location: Denmark
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Posted: Wed Oct 08, 2014 5:51 pm Post subject: |
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Hi all,
thanks for all your advice , tank is now "open" again.
After it had been soaking, i drained it again, and put a light inside the tank, here i could see the pipe & the metal mesh filter on the end.
all looked OK, so I put a thin piece of metal wire into the out line pipe.
It would only go halfway up/in.
I then took a old wire from a bike wheel, and hammered one end flat, and grinded the end like a drill, then fitted it into my drill, and went for it.
A lot of rusty dust came out, but still no clear passage.
I then filled the pipe with alcohol, and left it over night.
Next day the alcohol was absorbed, so I then filled it with diesel, and next day this was also gone.
Then it was time for another go, with the airgun & compressor. I had a friend holding the hose on to the pipe, as I managed the airgun, after a few seconds it cleared.
We then fitted the hose to the tank, and poured 4 liters of diesel in.
When the diesel went into the pipe, and started coming out the hose, we put a bolt into it, this way I was sure to have diesel inside the outline pipe.
I then put 25 different size nuts into the tank, and shook it around.
This was done for the next week, several times when I was in the workshop.
Then the tank was drained, and flushed with petrol.
Some areas do have a little rust on them, should I do something about this? or ?
Here is a link =
http://www.oldclassiccar.co.uk/forum/phpbb/phpBB2/viewtopic.php?t=16456&highlight=
Jens Christian _________________ http://www.eurods.eu/wp/index.html |
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colwyn500
Joined: 21 Oct 2012 Posts: 1745 Location: Nairn, Scotland
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JC T ONE
Joined: 30 Oct 2008 Posts: 1139 Location: Denmark
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Posted: Thu Oct 09, 2014 6:27 pm Post subject: |
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Thanks for that link they seem to have some very good products _________________ http://www.eurods.eu/wp/index.html |
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