| Author | Message | ||
     Eshardball |
I just went to put my original tank back on my S1 after running the M2 tank that I had bought. The original tank has been sitting in the basement for about two years. The tank now appears to have gotten .8" shorter or the frame has grown .8" longer. The mounting plate in the pic is in the exact place that it used to be when this tank was orignally on the bike. The front tab is under the cross bar as required. WTF?   | ||
| Mick |
The tank shrinks without fuel in it. | ||
| Eshardball |
.8 inches?! Holy crap. How do I stretch it back? Are you serious? | ||
| Slc4me |
Ive never heard of that before crazy???? | ||
| Eboos |
LOL!!! I always wondered why these were so poorly fitting. | ||
| Skntpig |
I am interested to see how this works out. I have no idea how that could happen. Sorry no help...What?! | ||
| Pkforbes87 |
If it shrinks with no fuel.. fill it to the brim and wait? I've never seen anything that extreme before. The rubber neck in my X1's tank will shrink if the tank sits empty over the winter, and it's a b#$*ch to get out. | ||
| Rotzaruck |
I think it has something to do with the deflated gas thing. You need some $3-$4 gas. Hang on, it'll be back. | ||
| Mick |
I've just had a tank painted, and the paint has split due to the expansion. Just put some fuel in it and wait see. | ||
| Eshardball |
I could see so flattening of the profile when loaded with fuel but only by a few .001's. I would have to make a larger retaining plate which is no big deal but the whole event really seems to be consistant with the title of my posting. I reiterate, WTF? | ||
| Kilroy |
I've had 3 different tanks on mine over the years, and always had minor adjustments to make, but nothing like that. So I also have to add a WTF? | ||
| Kilroy |
Seems to me that if your tank shrunk that much, all the paint would have benn laying on the floor in big chips, so i don't think that tank shrunk. Something else is up........... | ||
| Spiderman |
This tank fit before hand? | ||
| Blks1l |
Looking at that tank, my S1 tank doesn't have that indention in it at the rear of the tank. Dean | ||
| Koz5150 |
No one has offered the suggestion that maybe the bike is growing larger? Have you been feeding it Steriods? was it formerly owned by Barry Bonds? | ||
| F_skinner |
Eshardball, make sure your cables and wiring are not interfering with the tank (it looks like they might be in one of the pics). I have never seen a tank shrink. The rubber and plastic in the tank and gas cap always gives me fits when there is no fuel in them but not the tank itself. | ||
| The_italian_job |
this is hilarious! | ||
| Eshardball |
This is the tank that was on the bike when I got it. Nothing underneath has changed. Cables and wires have not changed. I have not fed it anything other than premium fuel with a few shots of octane booster for dessert. The rear mounting plate is in the exact position when it had been on the bike when I got it. If the frame had bent it would have been upwards which would move the two points closer together. I'm stymied. I cannot think of any rational explanation so I am open to anything that is no so absurd that it borders on insane. | ||
| Eshardball |
Thanks Edoardo. My bike must have gone to the twilight zone while I wasn't looking. The smaller tank does look good though. I took the Manta tank off to send out for paint with my new fairing | ||
| Jimmy77 |
On my M2 the bolt does not go through the tank. There are two brackets like the one shown with teeth that "sandwich" the base of the tank. I don't think it shrank, I think you just forgot how it mounted 2 years ago. | ||
| Jimmy77 |
The S1 tank is a little different than the M2. From the diagram it still looks a half inch off... Get some larger washers?  | ||
| Zac4mac |
Is that a wear mark on the tip of the front tab? Was it previously NOT all the way under, maybe just the tip? That should move it far enough back to get the screw in, at the back. Zack | ||
| F_skinner |
Eshardball, I am not doubting you at all. That does not look like a stock tank to me. It does look like the bracket will grab the tank, like Jimmy77 said, but the real test will be when you put the seat on and how it matches up to the tank. I have had this problem before but it has always been either wiring or the four rubber stops that go between the frame and the tank that fell off or moved. I would also check the body alignment. (The plastic body that bolts to the rear of the bike). | ||
| Eshardball |
Guys I appreciate all of the help. Although it was two years ago, the indentation is there from where the mounting plate clamped down on the back of the tank. The front tab was all the way down as it is shown in my second pic. I guess I could grind it down to allow the tank to slide back but I am looking for an explanation for the condition. I realize that it sounds crazy. There is now a substantial gap between the front of the seat and the back of the tank that was not there before. I really don't want to grind down the front tab to slide the tank back although that seems to be the direction in which I am heading. | ||
| Sleez |
if you have sun this time of year where you are at, i suggest sitting it outside in the sun for a few hours and see if that makes any difference. | ||
| Brinnutz |
Put it in the oven? | ||
| Sleez |
i would not put it in an oven, maybe a warm oven that was turned off, and not one with a pilot light....go "BOOM"!!!! | ||
| Bbbob |
Judging from the missing paint on the front of the tongue (on the front of the tank) it looks like the tank was originally mounted with the tongue pushed up against the cross bar, not with the tongue as far under it as you have in the pic. (just my interpretation from looking at the pic) | ||
| Hootowl |
Since your tank was in the basement, and the bike was on street level, the bike has had a higher angular velocity than the tank for over a year. The differences in mass and space-time compression due to the different relative velocities has caused your frame to lengthen and your tank to contract. But you're not completely screwed. Put the bike in the basement and the tank in the garage for six months until they reach equilibrium. Ah, quantum mechanics...it's the dream that stuff is made of. | ||
| Court |
Jeff: I was thinking along the same lines as you . . . it just appeared to me that, during the time the tank was removed, that the bike had been accelerated so vigorously that it stretched the frame about 1.2". I'm wondering if a couple mondo stoppies would help? |
