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B11 etc. gas tank install

Discussion in 'BNS12 Chat & Tech' started by Rafael, Jun 3, 2017.

  1. Rafael

    Rafael GT Reference

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    Seems we always struggle to get a gas tank bolted back on 'cause of the swelling I suppose. So my buddy developed a fool proof method.

    He uses a couple of mallets. See the pic for configuration. Rotate the rear mallet towards the front. This allows you to see into the bolt hole and check alignment before hand threading the bolt
     

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  2. john zibell

    john zibell Moderator Staff Member GT di Razza Pura

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    If I run across a really stubborn tank I pull out my scissors jack and a block of wood (to go against tank tab) and jack the ^*%^&% into alignment.
     
  3. scottmastrocinque

    scottmastrocinque Scott Mastrocinque GT Famiglia

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    The Centauro's are notorious for expanding tanks which open wider and wider. In order to remount mine, I use a hookless ratchet strap which I pass around the front forks then around the tank tab like a big lasso. I make sure the ratchet mechanism is on the left hand side of the bike just behind the fork tubes, and I apply some tension with a few clicks of the ratchet. That is enough to re-bow the tank into the proper position for the retaining screw to go back in.

    I think this would work exactly the same way here as an alternative method.

    1078-2-x-10-endless-ratchet-strap-yellow_1_375.jpg
     
    Last edited: Jun 4, 2017
    Bill Hagan likes this.
  4. NPS

    NPS Cruisin' Guzzisti GT Contributor

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    Does anyone have any experience with internal coatings to prevent the ethanol absorption?
     
  5. kiwi dave

    kiwi dave GT Reference

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    Are these expanding tanks only happening when the tank is unbolted from the frame for a significant amount of time? I've had no issues, but the tank is only been off for about an hour maximum each time. With this in mind, I will perhaps sit the tank on the frame and bolt it on if I'm taking too long with a task.
     
  6. Bill Hagan

    Bill Hagan GT Reference GT Famiglia

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    Interesting responses.

    My Norge's slot for that hold-down fastener is WAY past it, so only the saddle keeps it from getting worse, I suppose. I am guilty of leaving the tank off for long periods, mostly because I am so painfully slow -- oh, and lazy -- when doing maintenance.

    A new tank is stooooopid expensive, so this winter, I may pull it (again), rinse it well, and consider some coating. If not, a few months of drying might help on its own.

    I had never thought about the ratchet persuader, Scott, and will try that, too. My only violent attempts at correction have been limited to cursing and a rubber mallet.

    Bill
     
  7. GT-Rx®

    GT-Rx® Administrator Staff Member GT di Razza Pura

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    Bill Hagan and scottmastrocinque like this.

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