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I like the color.
 

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MattR said:
Hey i know this is an old thread, but i heard this somewhere before. To remove tank dents, remove the tank, fill it with water, and freeze it. As the water freezes and expands, it'll push the dent out. You might wanna research this more though before you actually try it.
sounds interesting, but water in the gas tank is kind of iffy isnt it?rust and impurities and such?
 

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MattR said:
Hey i know this is an old thread, but i heard this somewhere before. To remove tank dents, remove the tank, fill it with water, and freeze it. As the water freezes and expands, it'll push the dent out. You might wanna research this more though before you actually try it.
Think about what you just said, what would make the water just push on the dent. Wouldn't it logically push everywhere on the tank equally? And what do you think that would do?
Thmick before you screw something up.

FOG
 

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FOG said:
MattR said:
Hey i know this is an old thread, but i heard this somewhere before. To remove tank dents, remove the tank, fill it with water, and freeze it. As the water freezes and expands, it'll push the dent out. You might wanna research this more though before you actually try it.
Think about what you just said, what would make the water just push on the dent. Wouldn't it logically push everywhere on the tank equally? And what do you think that would do?
Thmick before you screw something up.

FOG
I think FOG should record a motivational tape...ooo, better yet, someone should invent some sort of technology that catches you right before you do soemthing stupid, and FOGS voice should play in your head, "WHAT THE HELL ARE YOU THINKING" or "YOU CAN NOT POSSIBLY BE --THAT-- DUMB"
"hmm, no time to unload my gun before cleaning it" "YOU'RE AN IDIOT, INFACT< TAKE THAT GUN AND GO SHOOT YOURSELF WITH IT,SAVE EVERYONE THE TROUBLE"

i could go on, but i have work to do ;D ;D ;D
 

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FOG said:
MattR said:
Hey i know this is an old thread, but i heard this somewhere before. To remove tank dents, remove the tank, fill it with water, and freeze it. As the water freezes and expands, it'll push the dent out. You might wanna research this more though before you actually try it.
Think about what you just said, what would make the water just push on the dent. Wouldn't it logically push everywhere on the tank equally? And what do you think that would do?
Thmick before you screw something up.

FOG
You crazy younguns! [Alert: the following message is rubbish. For entertainment purposes only.]
The best way to do get tank dents out is to empty the tank, close the fuel valve (of course) and put in a half pound of dry ice. As it warms & sublimates to a gas it'll build up pressure & push out the dent. But don't let it burst the tank- ever see what dry ice does to a 2 liter bottle?

No? Ask any 1-eyed 13 year old.
 

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MrSciTrek said:
ever see what dry ice does to a 2 liter bottle?

No? Ask any 1-eyed 13 year old.
ahahahahha
 
S

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Well instead of going through all the work of emptying the tank, you can clean out both the old gas and fix the dent at the same time! Depending on the size of your cajones, you can either drop a match into the tank or run a fuse into the tank (vacuum hose port on the front is the perfect size for that).


PS - Be sure to wear all your protective gear while performing this maneuver (backwards baseball cap, Corona T-shirt, flip-flops, XXXXXXL basketball shorts)
 

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smithmax said:
Well instead of going through all the work of emptying the tank, you can clean out both the old gas and fix the dent at the same time! Depending on the size of your cajones, you can either drop a match into the tank or run a fuse into the tank (vacuum hose port on the front is the perfect size for that).


PS - Be sure to wear all your protective gear while performing this maneuver (backwards baseball cap, Corona T-shirt, flip-flops, XXXXXXL basketball shorts)
if your REALLY a man, youll do it while riding the bike down the street.
 

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MrSciTrek said:
You crazy younguns! [Alert: the following message is rubbish. For entertainment purposes only.]
The best way to do get tank dents out is to empty the tank, close the fuel valve (of course) and put in a half pound of dry ice. As it warms & sublimates to a gas it'll build up pressure & push out the dent. But don't let it burst the tank- ever see what dry ice does to a 2 liter bottle?

No? Ask any 1-eyed 13 year old.
This actually sounds like it may work, but i don't think gas tanks are air tight enough.
 

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http://www.gadgetjq.com/dentremoval.htm

1. Take that with a grain of salt, it's not going to work in every situation.
2. Don't handle dry ice with your bare hands, ever.
3. If the metal is creased (the CBR the thread is about) then all bets are off.

I've never done that myself (although now I need to thanks to my EX attacking my KZ), I'm just conveying some information that might be of use.
 

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If your talking about the dent in that CBR's tank in the first picture. Forget any internal pressure method. That Idea would only work if it were a soft dent that was weaker than the undamaged area. Then a little pressure Might pop it out. The creases in the tank make that dent so strong that you could put a 1/2 stick of Dynamite in the tank , and when you found the pieces the dent would still be in that one.

FOG
 

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That or use a little body filler (or skip that part) and then put a bra over it.

I think I remember reading that the f2 and f3 use the same tank, but definitely do some research on the CBR forums before buying anything.
 

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Discussion Starter #18
Wow, as much as I'd love to try out all of these fantastic experiments, I took the safe route and it is sitting down at the local body shop, along with the upper fairing.

Correct me if I'm wrong but with the whole filling it with water and freezing it, I don't think it would do anything. Hopefully MrSciTek will back me up when I say that when water freezes, the molecules get closer together actually reducing the overall amount. So, theoretically, if the tank were completely sealed and filled with water which was then frozen, wouldn't it suck the dent in further? this is assuming that the force of that vaccuum was powerful enough to do anything? I'm a business administration major and I swear I better not have suffered all the way through Chem 145 for nothing, C- baby!

anyway, I had contemplated having somebody weld some thin metal rods onto the areas of the dent and then trying to pull them each out bit by bit and then smoothed it all out with body filler, but I decided it wasn't worth the energy. Had I actually been welding on the tank, I would have filled it with water. I wouldn't take any chances with that stuff, you can have a tank thats been drained of gas and sat for a week and it'll still explode if you trying to look inside with your lighter. As for rust, after you drain the water just dump some acetone in there and it'll dry all that water out. Thats basically what Heet is.

I really liked all the Mcgyver type suggestions though, maybe if I had something I didn't particularly care about I'd have tried them, but right now I've got the money and I've got the time, so what the heck.
 

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luke said:
Wow, as much as I'd love to try out all of these fantastic experiments, I took the safe route and it is sitting down at the local body shop, along with the upper fairing.

Correct me if I'm wrong but with the whole filling it with water and freezing it, I don't think it would do anything. Hopefully MrSciTek will back me up when I say that when water freezes, the molecules get closer together actually reducing the overall amount. So, theoretically, if the tank were completely sealed and filled with water which was then frozen, wouldn't it suck the dent in further? this is assuming that the force of that vaccuum was powerful enough to do anything? I'm a business administration major and I swear I better not have suffered all the way through Chem 145 for nothing, C- baby!
Apparently you did, water expands when it freezes. ;D
 

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You're right about how molecules slow down but water forms a crystalline structure. This is the cause for it's expantion.
 
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