Gas tank moves a little

Discussion in 'Dyna Models' started by Spade5, Sep 10, 2010.

  1. Spade5

    Spade5 Active Member

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    I have accepted the Dyna clunk as a given when riding across railroad tracks and such. I always thought the sound was coming from the front forks but now I am not so sure.

    I was doing a little cleaning and noticed that my gas tank will rock a little and it seems to be only in the front mount. I checked the front and rear mount bolts and they are good and tight. The front bolt goes through a horizontal tube that is welded to the frame and it looks to me like there is a little play that allows the tank to rock.

    I was just wondering if "they all do this" or if I am cursed with an anomaly like I usually am. I can't believe it took me three years to notice this.
     
  2. Dr. Dolittle

    Dr. Dolittle Experienced Member Staff Member Moderator Contributor

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    Any way you could fashion some sort of soft, rubber like shim for the tube where the bolt goes through that would take up the play you've noticed?

    Worth a try anyway!
     
  3. Hoople

    Hoople Account Removed

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    Sit on the bike and grab the tank from underneath with the palms of your hands. Pull up and down on the tank. If it moves and makes a noise, tighten the front mounting bolt more. Mine was also "tight" but not tight enough. I had a bad knock/clank going over RR-tracks. You have to really squeeze those mounting ears. It is Dead silent now.
     
  4. Spade5

    Spade5 Active Member

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    Doc, I was thinking the same thing. I haven't quite figured out how to do it though.

    Maybe they all don't do it but I am going to give Hoople's suggestion a try and tighten it up some more.

    If you had asked me a week ago if my tank moves I would have said no but I would have been wrong.

    Thanks for the feedback.
     
  5. lowriderfrf

    lowriderfrf Member

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    I had the same problem on my '06 Lowrider for about 6 months before I figured it out. Same solution as Hoople stated, tighten it up. I found this about 3 months ago and no more clunk.
     
  6. Jack Klarich

    Jack Klarich Expert Member

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    Same here 07 Streetbob, new thing to check each time I change oil:s
     
  7. NEWHD74FAN

    NEWHD74FAN Experienced Member Retired Moderators

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    Just for curiosity, can you change that bolt to one slightly larger in diameter? I changed mine out to stainless, with matching stainless washers because the existing hardware was cadmium plated and looked...eh...CHEAP...! And it was a little too long anyway (they use that silly plastic cap to "cover" up that fact). Found I did not have to "snug" it down too tightly to steady that tank.
     
  8. Jack Klarich

    Jack Klarich Expert Member

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    HMM, now that makes a lot of sense, good tip NEWHD:s