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Tank liner breaking down

  • the_mongrel
    the_mongrel
    2 days ago
    Hello all,

    So after having 2 fuel pumps seize, I’ve discovered that the liner inside my 2010 fatty has started to break down. So it needs to be removed and redone. 

    Anyone done this themselves, or know a good mob that can do it. 

    Cheer
    J
  • evo94
    evo94
    2 days ago
    if i remember rightly, years ago with my evo tanks, i used length of small chain with some petrol or sumin similar & shook them seemingly forever, drain & repeat 50 million times til clear...
  • the_mongrel
    the_mongrel
    yesterday
    Yeah - it's a pain the arse, and if it was not for an expensive custom paint job,  I could find an easier out.

    Sadly, I need to fix this one.
  • STEAMER
    STEAMER
    yesterday
    Quoting the_mongrel on 06 Jan 2025 09:52 PM

    Yeah - it's a pain the arse, and if it was not for an expensive custom paint job,  I could find an easier out.


    Sadly, I need to fix this one.

    Could always mount tankbin the Man Cave and get a replacement
  • the_mongrel
    the_mongrel
    yesterday
    I am not sure I even know what that means!
  • Hilly
    Hilly
    yesterday
    G'day mongrel, been awhile, pretty sure steamer ment hang your current tank on the wall in the man cave and get another tank, guess he missed the bit about it being a custom paint job so that isn't an option for you, or at least not one you want to take, I did see an article about doing what you are looking at attempting not long ago, had a list of specific products to use both in getting the shit out and creating a new liner, will see if I can find it again.
  • the_mongrel
    the_mongrel
    yesterday
    Hey Hilly

    Yeah man - been ages!  AHAH Nice to be back though. 

    The problem is this custom paint job is fairly full on, and would be impossible to match colours anyway, so it would be a complete redo.

    If you find something, let me know.
  • T4
    T4
    yesterday
    Don't know if this is what you are looking for but I have had success with POR15 tank sealer (so far). The tank was rusty inside and had a lot of rust sediment. The tank sealer came with a couple of products to clean the inside, though I did use the chain trick and shook it a lot to knock the rust off. The tank also has been around the block; you can see from the dodgy pics of the inside where it has been cut open and rewelded - it is mounted on a 95 Sportster.
    Screenshot (940).png
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    Screenshot (945).png
  • Stuart
    Stuart
    yesterday
    I used this stuff successfully years ago - though the bike is long gone, I ran it for a number of years without problem. Used ball bearings to knock off the old liner - as noted previously, this was a drawn out task.





    TankLiner.png
  • the_mongrel
    the_mongrel
    20 hours ago
    Quoting Hilly on 07 Jan 2025 02:53 AMedited: 07 Jan 2025 03:04 AM

    Haven't located the article as yet but I think this brand is what they used, I'll keep looking but the link might give you a few ideas.



    This isn't it but may also help.....

    Interesting Read - Thanks man!

    I note that Ethanol fuel is mentioned - something I have never put in the Fat!  Anyways... Thanks for the info.  I will keep reading and researching.  I  have 3 months to get this done before Rego expires (which would be a disaster) so need get moving pretty soon.
  • the_mongrel
    the_mongrel
    20 hours ago
    Quoting T4 on 07 Jan 2025 07:53 AM

    Don't know if this is what you are looking for but I have had success with POR15 tank sealer (so far). The tank was rusty inside and had a lot of rust sediment. The tank sealer came with a couple of products to clean the inside, though I did use the chain trick and shook it a lot to knock the rust off. The tank also has been around the block; you can see from the dodgy pics of the inside where it has been cut open and rewelded - it is mounted on a 95 Sportster.

    Screenshot (940).png
    Screenshot (941).png
    Screenshot (942).png
    Screenshot (943).png
    Screenshot (944).png
    Screenshot (945).png
    Thanks man.

    I need to make sure, whatever method is used, the outside paint is kept in tact.  Any form of regular paint stripper will be bad if it gets on the outside.
  • T4
    T4
    14 hours ago
    I was able to buy a bung for the the fuel petcock outlet (from Shipways SA) and a bent over rubber hose sealed the overflow pipe so I was able to shake the crap out of the tank while the goop and the chain was in there to clean it.The reason I used a length of chain rather than ball bearings is so I was able to fish the chain out of the tank easily (I have also heard of guys using a bunch of nuts loosely connected on a piece if wire).

    Disclaimer: I have not tried this with a tank that has a fuel pump in it - never even had a bike with a fuel pump in it (and at nearly 70 years old I don't want one).

    Cheers, Will
  • obisteve
    obisteve
    9 hours ago
    And for the tight arses amongst us, a couple of handfuls of jagged gravel works well too, just make sure you rinse it well. The nuts on a wire idea sounds like a good one T4.
    You'd need to pull out the fuel pump though I'd reckon.
    I probably should do the Sporty tank.
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