Removing a dent from a petrol tank?

[talcumpowderb...]

Hi, just wondering if anyone could suggest the best/easiest way of removing a dent, possibly a suction cup type method maybe? Never tried it before. the dent it self is about 2-3 inches in diameter on a vfr 400 nc30. Thanks.

[Nexus Icon]

You could try pressurising it with an airline through a rubber bung.
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Greetings from Shitsville!

[talcumpowderb...]

[Noxious89123]

[Snorty]

My friend did the compressed air and rubber bung trick. The tank went with a bang. Try at your peril.

Suction cup is the best idea.
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Current: Yamaha FZ1 '07 | GSXR 750 SRAD

Past: CB125TDC | TZR125 | GPZ500 | CBR600F3 | ZX9-R | GSXR1000 K4

[dransy]

Just do what I did and put a dint in the other side with a hammer
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Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles

[DMCpro]

Plug both holes and fill it up with water then put it in your freezer over night will remove all imperfections
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Honda CB-1, TS125X
VW Golf Estate

[Nexus Icon]

[Ichy]

It is important to understand how deep / sharp the dent is.
If it is a half decent dent then it will need to be knocked out or pulled.

like this https://www.youtube.com/watch?v=tjOjYvT0jEU

Posting an idea that you read on the internet is retarded.

The thickness of a tank wall means the ideas that others have copied and pasted are unlikely to work.
Air pressure will deform the tank before it forces the dent out.
A sucker will not work.
Freezing? Just lol!
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https://www.metacafe.com/watch/1972097/how_to_behave_on_a_forum/

[DMCpro]

[Nexus Icon]

[Noxious89123]

I don't doubt that airpressure *could* remove a dent, it's just that I think it would deform the tank elsewhere, before it popped the dent out. Depends on the shape of the tank really.
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'06 Honda CBR125RW-6 ~ '00 Honda CBR600F-Y ~ '07 Honda CBR600RR-7 ~ Bikeless
'53 Ford Ka 1.3 ~ '03 Vauxhall Astra SRi 1.8 ~ '52 Vauxhall Astra SRi 2.2 ~ '53 Vauxhall Astra GSi

[Ichy]

[Ichy]

[Tenantry13]

Just fill the dent, and put a sticker over it.

[ian505050]

remove tank from bike fill with water, seal it, put in large freezer and it will pop out

[Frost]

Well the paint is shit so it can be removed. Then either drill a hole and pull the dent out using it, or weld a rod on and pull it using that.
There is also a dry ice method that works on shallow dents. It works by contracting one specific area of metal. So if you put the tank in the oven on full blast then use dry ice on the dent. 225c, -80c is quite a temp difference and should give some big results.

[Ichy]

[talcumpowderb...]

[Rogue_Shadow]

https://i93.photobucket.com/albums/l41/marki_03/GS125/newtank.jpg




How?

[Frost]

The hammers and bars were distributed to his pikey mates who aided him in mugging the tank of the bike of some 17 year old who didn't look like he could handle himself.

[Ichy]

[Noxious89123]

[Rogue_Shadow]

[Ichy]