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Thread: INSIDE the motorbike tanks.......????

  1. #1
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    18th May 2005 - 14:20
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    INSIDE the motorbike tanks.......????

    Is the inside of bike gas tanks treated somehow or is it just plain steel. Just wonderingif it is ok to "bog-up" the dents outside or if it needs to be "panelbeated and somehow treated"
    Thanks for your info

  2. #2
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    2nd April 2005 - 11:58
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    It would depend on if your tank is creased, I think. You'd need to get it pressure tested to check for pinholes but if it's not holed then you shouldn't have a problem patching a small ding with bog.
    Motu and others here are the ones who'll give you the full gos on that though.
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  3. #3
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    16th January 2006 - 16:17
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    Depends on the bike most are plain steel, some euro bikes apparently have their tanks treated.

    If you are worried find a reputable outfit that repairs tanks and get them to etch and line the tank the good liners can fill minor pin holes but dont do what some fool did to the tank off my bike, pluged up the holes with bog and what looks like chewing gum, the put in one of those cheap tank repair packs, it has basicly written the tank off I am having to put in hours repairing it correctly and if it had been done correctly in the first place most of the additional damge could have been avoided.
    Its not the destination that is important its the journey.

  4. #4
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    If there is any pinholes you can actually just fix them with solder.
    Two Stroke, the pinnacle of engine design

  5. #5
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    Quote Originally Posted by TygerTung
    If there is any pinholes you can actually just fix them with solder.
    I wish pin holes, would be nice and easy if I had a digital camera I would have taken photos, the left had side of the tank is basicly gone, the old saying a stich in time is very applicable. If you have an older bike and intend to keep it get the tank lined properly and have one less worry.
    Its not the destination that is important its the journey.

  6. #6
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    wonder why ppl don't make crash bungs for the tank...
    newbie since August 2004....
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  7. #7
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    Quote Originally Posted by TygerTung
    If there is any pinholes you can actually just fix them with solder.
    Yeeessss.... but if there is any moisture around (i.e., the tank isn't completely sealed with paint on the outside and liner on the inside), then you can get galvanic corrosion between the solder and the steel, as the solder being less reactive will cause the steel to oxidise (rust). The pinhole will end up getting worse.
    I'm not saying soldering is a dumb idea, but you have to do the job properly.
    ... and that's what I think.

    Or summat.


    Or maybe not...

    Dunno really....


  8. #8
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    5th June 2005 - 15:59
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    Ahh, yes. My bike has its 1st (and to date only) scar... and I wasnt even riding it at the time! The wind blew it over at home while parked up (Wellington - GRRR!). The handle bars were on full lock and were pressed into the tank. Now the tank has a round indent in it that perfectly fits the bars and clamp. Not major and would survive just being left as is. But I have seen advertised the "no panel beating" method of sucking out such dings.
    Has anyone had this done on a bike or probably more likely a car? Is it suitable for something so small or does cost/result not stack up?

  9. #9
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    Quote Originally Posted by Charlie
    Ahh, yes. My bike has its 1st (and to date only) scar... and I wasnt even riding it at the time! The wind blew it over at home while parked up (Wellington - GRRR!). The handle bars were on full lock and were pressed into the tank. Now the tank has a round indent in it that perfectly fits the bars and clamp. Not major and would survive just being left as is. But I have seen advertised the "no panel beating" method of sucking out such dings.
    Has anyone had this done on a bike or probably more likely a car? Is it suitable for something so small or does cost/result not stack up?
    I thought of getting that done too (length of dowelling fell end-first onto my tank). But I was told that the bike tanks are too stiff for this method to work. It'd still be worth asking them, as my info wasn't 'from the horse's mouth', but from someone else.
    ... and that's what I think.

    Or summat.


    Or maybe not...

    Dunno really....


  10. #10
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    5th June 2005 - 15:59
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    Where are the panelbeaters on KB?

  11. #11
    Your bike is new and was just knocked over in a low speed dong,unless it fell on a bed of nails I doubt if you'd have pin holes.But a crease can tear the metal and make a hole - does it leak?? If it's insurance you should be getting a new tank,but if it's just minor dents they will bog and repaint.I don't think tanks are treated,although it's possible they might have some sort of phospho dip these days,that's not likely to be damaged.

  12. #12
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    5th June 2005 - 15:59
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    No I'm pretty sure there are no pin holes. Like I said, its minor and makes no difference if it is fixed or not. Just pride and vanity has me wondering if its simple and worth poping out. One day it might get worse scares and the wee indent will be forgotten....

  13. #13
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    18th May 2005 - 14:20
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    maybe you could put a nice sticker over it...............
    My tank is dammaged a bit more than that because it got the "chippies" from the road as well.

  14. #14
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    18th May 2005 - 14:20
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    tank does not leak

  15. #15
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    8th August 2004 - 17:16
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    How do you remove petrol fumes from a motorcycle tank without going into pumping it full of expensive inert gas?

    I googled up defumigating tanks and read from another forum use washing powder and hot water and flush it out a few times. It worked and it didn't ignite when I threw a match over the tank from a safe distance huddled behind a car with a fire extinguisher at my side, but it's left the inside covered with surface rust.

    This tank I'm working on isn't important and I'm only using it as a means of practicing dent repair so it doesn't realy matter now it's rusted but I wish to know how to properly defumigate tanks for the future.
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