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Author: Subject: the dent thing question
Mr Whippy

posted on 29/2/08 at 10:32 AM Reply With Quote
the dent thing question

remember the clip where CO2 was used to pop out a dent, does anyone know if the CO2 should be sprayed in the dip of the dent or does it matter. Reason I ask is I have a dent on a door which is really a bulge rather than a dent due to being hit from the inside of the car. You might need to read that twice thanks to how bad I just wrote that anyway I've got a can of gas and want to try it out over the weekend. Anyone know the answer?






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dan__wright

posted on 29/2/08 at 10:38 AM Reply With Quote
i guess do it from the inside.





FREE THE ROADSTER ONE…!!

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02GF74

posted on 29/2/08 at 10:39 AM Reply With Quote
hit it with a hammer to push it in.






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Mr Whippy

posted on 29/2/08 at 10:43 AM Reply With Quote
well I'm trying to avoid the hammer as the clip showed the panel simply poping back into shape. I should have mensioned that the dent is behind a inner skin and hence it's not been fixed. I was going to drill a little hole for the nozzel to spray through and heat the panel from the outside with the hairdryer.






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Richard Quinn

posted on 29/2/08 at 10:47 AM Reply With Quote
Park it next to my Missus' car. She'd knock it back in with her door in no time!!
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RazMan

posted on 29/2/08 at 10:53 AM Reply With Quote
The clip showed the CO2 being sprayed all over the dent. I imagine the force is generated by the skin cooling faster than the rest of the metal, therefore generating a powerful contraction effect.
I'm certainly going to give this a go when I get a day off.





Cheers,
Raz

When thinking outside the box doesn't work any more, it's time to build a new box

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02GF74

posted on 29/2/08 at 11:11 AM Reply With Quote
^^^^ interesting. I would have thought it would be difference in air temperature resulting in pressure difference that was the driving force.

anyone know how it works?






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Mr Whippy

posted on 29/2/08 at 11:55 AM Reply With Quote
quote:
Originally posted by RazMan
The clip showed the CO2 being sprayed all over the dent. I imagine the force is generated by the skin cooling faster than the rest of the metal, therefore generating a powerful contraction effect.



I'd say that sounds a good theory, so might not matter which side it is.

[Edited on 29/2/08 by Mr Whippy]






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