Maintenance & Technical > KX500 Original
Pipe Repair
maddoggy:
i think you're right on point there BDI. the pipe is almost the same as a petrolium holding vessel considering the stuff that runs through there all the time. the inert gas will work to fill the chamber safely lowering the explosion danger when you heat the pipe from the outside. however, if you only have small dings is it really worth it to risk life and limb to remove small dents? a couple hundred $ for a new pipe seems like a good buy compared to what could happen when pressurizing with air or some of the other things i've seen mentioned in this thread. by the way, if you use the method described by BDI, fill the pipe with inert gas then heat your dinged area if it doesn't pop out then while still hot, place a piece of ice in the center of the ding. the rapid cooling of the small area will shrink it thus popping the ding out while the rest of the pipe around the ding will remain in an expanded state till cooled off. i've done this with hail dents on an old truck i used to have, done on a 100 degree plus day and ice on the hail dent. worked great. MADDOGGY
KXcam22:
I read somewhere that guys have been using frozen water to undent their pipes. Basically fill the head pipe with water and prop it up in the freezer. The frozen water expansion pushes out the dent. I haven't tried this myself yet. Cam.
BDI:
--- Quote from: KXcam22 on February 04, 2008, 05:46:45 AM ---I read somewhere that guys have been using frozen water to undent their pipes. Basically fill the head pipe with water and prop it up in the freezer. The frozen water expansion pushes out the dent. I haven't tried this myself yet. Cam.
--- End quote ---
I'm scared to try it I think the forces would not just push on the dent but rather the whole tube and could split it open like a beer can.
KXcam22:
Yeah you would think so. I think what happens is that the round pipe is quite strong and contains the force but the dent gets bulged back out until it matches the round. I would have to test it on an unimportant header pipe first. The air pressure, plugs and heat is a tried and true method. I would certainly feel more comfortable since it is also a controlled thing (with you controlling it). I am planning to fab up my own kevlar header pipe guard. Hopefully it can handle the heat since it is more than a 2-stroke pipe. Cam.
Dutch-K5 Fan:
http://www.rino-racing.be/cat/
Then page 224/225 of the Catalogue.
Have one at home and works great. Easy to make self.
Save way is to first heat the pipe, than pressurize the pipe.
Dutchie
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version