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Post by smithy6660 on Jun 9, 2011 21:14:41 GMT 1
just wondered what the best thing for cleaning petrol tanks is my bike has been sitting for a while so think i better clean the tank
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Post by shandyboy on Jun 9, 2011 22:27:38 GMT 1
HI I work for a chemical company and have just cleaned a lot of rust out of my spare Suzuki X7 tank. I used a product called Maraclean 2000 basically you fill the tank with water then add about 1/2 litre to it let it stand for 3-4 days then empty out all of the rust has gone. I then mixed duck oil with thinners and sprayed the inside of the tank, the thinners evaporates to leave a coating of oil, or you could fill it up with petrol I was leaving mine empty to paint.
hope this helps
cheers
Alan
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Post by watchhislegs on Jun 9, 2011 22:51:34 GMT 1
I used phosphoric acid and POR-15. It was terrifying but the results are great. I'll post some pics when I return from my trip to Budapest after the weekend. My camera will be full of pictures of crusty vessels then.
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Post by JonW on Jun 9, 2011 23:38:27 GMT 1
Interesting to hear there is a horror story with POR15 Rave! Ive only ever heard good things...
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Wez350
Drag-strip hero
Posts: 283
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Post by Wez350 on Jun 10, 2011 1:18:39 GMT 1
I have just por15 my tank did the full 3 stage treatment.Took all day to do properly and i left it a full week to dry and has come out spot on.
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butchy
L plate rider.
Posts: 48
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Post by butchy on Jun 10, 2011 7:43:07 GMT 1
I only heard good things about flowliner ffs   |
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Post by JonW on Jun 10, 2011 8:17:55 GMT 1
yuk! you poor sod, feel for ya m8. that sucks  |
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Post by JonW on Jun 10, 2011 9:00:22 GMT 1
Rave, what happened mate? Ive never heard a bad word about the POR, makes me think the tank wasnt dry before it went in or something...nightmare tho... will it come out?
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butchy
L plate rider.
Posts: 48
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Post by butchy on Jun 10, 2011 10:18:33 GMT 1
Thats Sh*t bad news rave no chance you can save it ?
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butchy
L plate rider.
Posts: 48
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Post by butchy on Jun 10, 2011 10:24:24 GMT 1
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Post by vin on Jun 10, 2011 14:42:42 GMT 1
I have just por15 my tank did the full 3 stage treatment.Took all day to do properly and i left it a full week to dry and has come out spot on. Nail on the head Wez! If you follow the instructions to the letter then POR15 is the way to go..... IMHO. |
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Post by 1260dave on Jun 10, 2011 20:27:44 GMT 1
i've got a mad idea i'm going to try, i'm going to put 2 litres of pebble dashing stones into an old rusty tank and strap it to an old cement mixer drum i've cut down and let it go round for an hour
thats how i clean cement out of the mixer at the end of the day
anyone tried anything like that
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Post by nikfubar on Jun 10, 2011 22:08:49 GMT 1
i've got a mad idea i'm going to try, i'm going to put 2 litres of pebble dashing stones into an old rusty tank and strap it to an old cement mixer drum i've cut down and let it go round for an hour thats how i clean cement out of the mixer at the end of the day anyone tried anything like that Sorry your not the first one to have this idea  |
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Post by 1260dave on Jun 10, 2011 23:48:40 GMT 1
i've got a mad idea i'm going to try, i'm going to put 2 litres of pebble dashing stones into an old rusty tank and strap it to an old cement mixer drum i've cut down and let it go round for an hour thats how i clean cement out of the mixer at the end of the day anyone tried anything like that Sorry your not the first one to have this idea hey as long as it works ;D |
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Post by robin on Jun 12, 2011 17:12:09 GMT 1
I threaded a load of small nuts and washers onto a strong bit of fishing line, dropped it into the tank and gave it a dam good shaking, (no cement mixer available), dislodged heaps of surface rust, and knew that I hag got all the bits that went "into the tank out again". I was suprised how clean the tank was afterwards, just part filled her up with a bit of petrol and WD40 for a rinse out..job was a good un..
Robin
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Post by smithy6660 on Jun 13, 2011 19:23:09 GMT 1
thanks guys where would i get por 15 from
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Post by nikfubar on Jun 13, 2011 20:33:33 GMT 1
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Post by smithy6660 on Jun 14, 2011 20:53:31 GMT 1
the photos of yer tank are bad putting doubts in my mind but still hearing good things about por-15
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Post by aaronben40 on Jun 14, 2011 21:00:43 GMT 1
well 28 bottles of tesco cheap vinagar did the works for my rust tank. Cost about £5 and was eating chips for ages after ;D
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Post by smithy6660 on Jun 14, 2011 21:14:47 GMT 1
ok gots loads of pickling vinagar will that do the misses mite go mad its for her onions lol
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Post by watchhislegs on Jun 16, 2011 12:05:09 GMT 1
I used this method and the results were good. Costs bugger all too. I bought some strong phosphoric acid off ebay - pH Down. I think it was about £10. I also got some POR-15 off ebay as well. I think that was about £15 for a small pot. You could treat two fuel tanks with the amount they give you but I don't think it stores well so best do two at once if needs be. My palace doesn't have a garage so I did this in the back yard. I believe the reaction between the rust and acid lets off nerve gas which will kill you and your neighbours and dogs so this is why I didn't do it in my front room (I was smoking and drinking around it outside and I didn't die or blow up but you never can be too careful). I know you boys like pictures:  Dirty, rusty old tank.  I filled the tank in stages. I'd pour a little phosphoric acid in then a kettle full of boiling water. Repeat until there is no more acid left and the tank is brimming. I didn't bother covering the paintwork as it's getting sorted later.  Tank is brimmed and has already sprung a pin hole leak. In true Blue Peter fashion you could use double sided tape but I had run out (I'd also run out of duct tape) so I used blue tack(!). It actually did the trick but was melting and bubbling. It pays to be prepared (unlike me).  Sit back and watch the tank bubble and pop (mmmmm sweet smelling nerve gas). The tank will be hot to touch and will stay this way for a good couple of hours due to the reaction between the acid and the rust probably (I'm not a scientist as you've already gathered).  You can take this opportunity to dip various objects in the tank of eternal stench and watch as they magically smoke.  I left the tank over night and then poured the liquid left in the tank over the neighbours vegetable plot. The inside is now nice and clean. I then gave it a good wash in the bathtub using the shower.  Next I gave it a good rub down with a towel and dried it thoroughly with a hair dryer and a coil heater. You have to make sure the inside of the tank is bone dry before you add the POR-15. Dry it as quickly as possible after rinsing to avoid flash rust.  I then blocked up the fuel tap hole with a washer and plate and put some masking tape over the pinhole. I then tipped a full pot of POR-15 into the tank and sealed the fuel cap hole with a plastic bag and zip tie. I then swilled it around for what seemed like ages to make sure the inside of the tank was liberally coated. (it is probably best to look at the instructions on the POR-15 as I have little memory of these events due to the nerve gas).  After a bit of time I drained the excess POR-15 out of the tank. An old mince container makes a great catch pot for the excess POR-15. You have to make sure you get all the excess out as it 'puddles' apparently. Anyhow, the results were positive:   I haven't tested it with fuel yet but I have only heard good stuff about POR-15. There are other methods of rust extraction (vinegar, electrolysis, fish tank gravel) but this one seemed easiest for me and yielded positive results. Nico |
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Post by leaky on Jun 16, 2011 13:13:36 GMT 1
I used this method and the results were good. Costs bugger all too. I bought some strong phosphoric acid off ebay - pH Down. I think it was about £10. I also got some POR-15 off ebay as well. I think that was about £15 for a small pot. You could treat two fuel tanks with the amount they give you but I don't think it stores well so best do two at once if needs be. My palace doesn't have a garage so I did this in the back yard. I believe the reaction between the rust and acid lets off nerve gas which will kill you and your neighbours and dogs so this is why I didn't do it in my front room (I was smoking and drinking around it outside and I didn't die or blow up but you never can be too careful). quote] Educational and funny... perfect! |
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herb
Weekend rider
The older I get, the faster I was!
Posts: 83
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Post by herb on Jun 16, 2011 17:15:00 GMT 1
I have cleaned out a lot of tanks and re-sealed them using POR15, and I've never had grief from any of them  This is the first time I've heard of anyone having a problem with this kit. If you had said Petseal or Flowliner I wouldn't have been surprised  Are you sure you followed the instructions to the letter? It's crucial to clean the tank thoroughly then make sure it's completely dry before you line it. |
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Post by smithy6660 on Jun 16, 2011 21:02:44 GMT 1
that looks like the way to go thanks
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Post by midlifecrisisrd on Jun 16, 2011 21:10:22 GMT 1
Hey rave,
are you sure it was the right stuff, por 15 make lots of rust products, might have sent the wrong one.
Should be marked "US standard tank sealer" or something like that.
Steve
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rs2000
L plate rider.
Posts: 31
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Post by rs2000 on Jun 18, 2011 14:55:01 GMT 1
I have done 3 tanks in the last 3 years with por15 and tw0 of the liners let go within weeks, I used the 3 step process with there cleaning products, dried the tanks in the hot water cupboard, ran the hairdryer through them and still two gave way, so I will not be doing it myself again
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Post by JonW on Jun 19, 2011 0:21:57 GMT 1
Nico, superb write up mate. loved it.
Sorry to hear of a few more with POR15 troubles. Down here we have KBS coatings that are suposedly an offshoot from POR and make a slightly better version of it. I have some but have not yet had the time to get it done. Will do when spring comes round.
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Post by watchhislegs on Jun 27, 2011 23:43:22 GMT 1
This POR stuff sounds like some crazy liquid. I let the mince container of POR dry out and then peeled it out. It was like I imagine kryptonite to be. Absolutely rock hard. I just hope my tank stands up to the rigour of petrol.
I did a lot of research prior to sealing the tank and everything I had seen pointed to POR being the best gear you could get, especially given the rise of ethanol in our petrol.
Ravedaddy; I encountered no frothing but I understand through your various travels you are no stranger to frothing (of one sort or another). I seem to remember there being explicit instructions not to shake too much or manipulate too vigorously (I'm not sure what I'm referring to here) and this may account for some of your froth problems. Either that or it was too wet inside.
I'd better stop now.
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Post by rd350r on Jun 28, 2011 9:46:38 GMT 1
This is what I used, Caswell GTS 1750, Not cheap but perfect so far, 12 months, although It took the full 16oz to coat the tank, not the 8oz as stated in the instructions. Recommended. www.caswelleurope.co.uk/ |
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Post by joyrider on Jul 5, 2011 18:59:24 GMT 1
I've had one of my tanks cleaned with industrial acid then POR-15 it afterwards.
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