Removal of old fuel tank liner
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  1. #1
    Member Grazman's Avatar
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    Removal of old fuel tank liner

    Hello all,

    The tank on my CB175K3 was leaking slightly even through the JB weld. I decided to remove it and get down to bare metal and have a good look.I found a couple of pinholes and the tank seems otherwise to be quite serviceable. The trouble is that as I chipped away at the JB weld, it dislodged the internal liner from the bottom of the tank.This liner was put on about 15 years ago and I presume was not done correctly as its about half an inch thick, and I need to get it out before I can do anything else.Does anyone have an idea as to how I can do it?


    Thankyou.

    Graham

  2. #2
    Senior Member Richard_Pitman's Avatar
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    I used this stuff, Sealeater.

    Removal of old fuel tank liner-sealeater.jpg

    https://www.ebay.co.uk/p/Fertan-Fuel...er/13008016677

    It is vicious stuff, need to be careful with it, but it works. I removed some huge lumps of what appeared to be epoxy based sealant from a CB175 tank.

    Removal of old fuel tank liner-20180514_151138.jpg
    Last edited by Richard_Pitman; 06-25-2019 at 11:40 PM.
    1970 Honda CB175K4
    1972 Honda CL175K7
    1999 Honda CB600 Hornet

  3. #3
    Member Grazman's Avatar
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    Thanks for that Richard.I haven't heard of that product and I checked and they are out of stock. I have been looking on the net, and have found a product called MEK or methyl chloride which should do the job,but apparently its pretty nasty and extreme care is needed.I did try acetone but it did nothing.

    Thanks Graham

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  5. #4
    Senior Member Richard_Pitman's Avatar
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    Just looked on Ebay UK, and found vendors selling dichloromethane AKA methyl chloride for around 10 UKP a litre.

    Considering that the Sealeater stuff cost 30 quid, seems worth a go,

    I didn't take any extreme precautions when using the stuff, and I haven't died yet ….

    You wouldn't want to get it in your eyes, or on the skin for very long.
    1970 Honda CB175K4
    1972 Honda CL175K7
    1999 Honda CB600 Hornet

  6. #5
    Member Grazman's Avatar
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    I have found a place here in Sydney that sells it in one litre containers so i'll order some and give it a go. This should be the last big job to do on this bike,unfortunately I will have to repaint the tank as I have spoilt the paint somewhat, but I should be able to do that.Last week I went to a motorcycle classic restore guy and he wanted $1000 plus to fix the tank,which I am not prepared to pay,so I shall be having a go myself.It's not due for its road worthiness rego inspection until December so I have plenty of time.Once again thanks for your input,will let you know how I get on.
    Regards Graham

  7. #6
    Sensei 66Sprint's Avatar
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    MEK is Methyl-Ethyl-Ketone, (Butanone)......
    Last edited by 66Sprint; 06-28-2019 at 08:03 PM.
    "I have a mind like a steel trap.....Old and rusty, of antiquated design, and hard to get stuff back out of...."
    Contact info: E-mail; [email protected] Phone; 540-525-5199

  8. #7
    Member Grazman's Avatar
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    Thankyou 66

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