Tiger 885 Carb Fuel Tank Leak

Discussion in 'Technical Help' started by TheThing, Feb 3, 2020.

  1. TheThing

    TheThing Member

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    Hey all.

    I'm about to MOT the Tiger for another year, but I have a slight fuel leak on one of the threaded inserts on the tank. Anyone know of a fix, or the type of plastic the tank is made from. Thinking I might try a bit of 'glue' around the insert. Just need a weld type glue to hopefully rebond it to the insert.
    It's a 96 Tiger 885 Carb with the plastic tank.

    Thanks

    Rob
     
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  2. freck

    freck Elite Member

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    Hi Rob, I’ve successfully used Quiksteel to repair a leaking insert on a plastic tank before.
    It’s a bit of a sod to do as you need to get the insert out, open up the hole a bit, fill with Quiksteel and then push the insert in before it sets. Screw a bolt into the insert then once set you can unscrew and the thread will be clean.
    I believe the tank is made from an acrylic, and they were made by Acerbis.
     
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  3. TheThing

    TheThing Member

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    Hey Freck.
    Thanks for your reply. I was hoping not to have to remove the insert. Scares me a little :cold_sweat:
    Think this will be my job for the weekend. I like the idea of using the bolt to keep the thread clean. I did think about sticking a bolt in, then playing a propane torch on it to transfer some heat and soften the plastic to release the insert.
    I assume I would want the hole to be a fairly close fit to the insert and to use a little epoxy to fill the gap.

    Cheers.

    Rob.
     
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  4. freck

    freck Elite Member

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    The insert has serrations on the outside to grip into the plastic so really you need to push it into whatever material you use for sealing the leak.
    I used Quiksteel as it’s like a putty, made of two parts. When you knead the two parts together you’ve got about 5 minutes to mould it into the void you make where the insert was, then push the insert into it and let it set.
    I wouldn’t be using a torch anywhere near it as it’s likely to burn the tank not melt it, and if there’s any fuel vapour hanging about..........o_O
    My insert was already a little loose, but I just drilled around it to get it out and make a hole to seal up.
     
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  5. feckless

    feckless Noble Member

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    I have used Kwiksteel myself on a fuel tank so can vouch for its worthiness. it Is a very versatile putty
     
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  6. Simon Logan

    Simon Logan Active Member

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    Hi, I have a 94 Tiger. One of the 7 previous owners must had an issed with one of the fairing inserts in the tank and has bodged/filled the hole with what I assume is kwik steel or something similar. Has anyone had a new insert made and do they go all the way through in to the tank itself and so are exposed to the fuel. I have had the tank off today and some of the paint is bubbling off underneath so I assume if needs the tank treating with that sealant from the company called Wyldes ?
     
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  7. freck

    freck Elite Member

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    The inserts are just moulded into the plastic when manufactured but don’t go through into the fuel.
    The usual problem is that someone will have used a screw that is too long at some point and it cracks or punctures the moulding behind the insert, resulting in a leak.
    As I’ve said in a previous post, I found it difficult to repair effectively without opening up the area and filling behind the insert.
     
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  8. Simon Logan

    Simon Logan Active Member

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    Thanks Freck. "Opening up" the area is just a bit beyond my level of confidence. This a long shot but is there company that could take this on ?
     
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