kdx200chick said:I have never tried myself this:
take pipe off of the bike and fill with water (I am not sure if he caps the ends but don't fill all the way to allow for expansion)
put it into a deep freeze and the water turning into ice will expand and pop out the dent.
I knew this guy who swore by this technique...
I 2nd these guys, they did a great job on my gnarly.wibby said:
Idaho Charley said:Ok now just think about this one before you try it and ruin your pipe.
- Water to ice has an expansion ratio of about 10%.
- Water does not know "the where" it needs to expand to pop out the dent or dents.
- Water to ice will create a termendous force internally on your pipe's internals provided you fully fill the pipe up with water with no air spaces.
- The pressure will expand the pipe to the breaking point based upon the largest component unit area other things being equal. i.e. thickness of cones, uniformity/quality of welds.
Bottom Line - If you fill up the pipe completely and seal both ends tightly and freeze the pipe solidly it will pop the pipe somewhere - likely adjacent to or the seam on the largest cone making up the pipe.
P.S. Not trying to become a new flame for you guys but just trying to save a few pipes.