Nathan Posted July 9, 2003 Share Posted July 9, 2003 Chaps, Long shot, but does anyone know where I can get some of the above? I'm not talking about the weldable jobbies a la Weber ones but the other type which only needs a hole to be drilled in a pipe then the fitment of the boss itself creates a gas-tight seal. Saves the hassle of welding anything and removing the pipe in some cases. I have seen them, but it was a long time ago at a car show somewhere.... Any ideas?! Cheers, Nathan TDI PLC Link to comment Share on other sites More sharing options...
THOR Racing Posted July 9, 2003 Share Posted July 9, 2003 Nathan, I just have the weldable ones which is no help but if you find some I'd like to get some. Even just one and we can get them manufactured. Pete Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 9, 2003 Share Posted July 9, 2003 I am still trying to visualise how they work, and can only assume they have a male thread on the OD and screw into an accurately sized hole you drill in the wall of the pipe, self cutting a thread as they go. This sounds insecure to me, so I have surely got the concept wrong? I haven't seen anything like this though, still think welding is safest unless the concept is totally different to the above surmising. Link to comment Share on other sites More sharing options...
Nathan Posted July 11, 2003 Author Share Posted July 11, 2003 Pete; will do mate. Chris; I know what you mean, sounds like a bad idea having everything hanging off a thread cut into a relatively skinny bit of metal but I heard that it doesn't work quite like that. For sure, I think the technology is out there to allow a high temperature gas-tight seal into a 3 mm thick pipe without welding or needing to get inside the pipe. Just need to find the buggers. NASA....? Regards Nathan TDI PLC Link to comment Share on other sites More sharing options...
Steve Cargill Posted July 11, 2003 Share Posted July 11, 2003 Would it be a deformable bung, a bit like a pop-rivit? That should work OK Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 11, 2003 Share Posted July 11, 2003 The rivetting tool for THAT would be something else! And how would it deform properly to accomodate different pipe OD's and ID's? And how would you drill an accurate and big enough hole in the pie, in situ? I mill the holes on the miller, as that's easier than trying to drill so big a hole. In situ, and accurate in size and roundness? Hmmm... Link to comment Share on other sites More sharing options...
Steve Cargill Posted July 11, 2003 Share Posted July 11, 2003 Just batting ideas about.... You can drill a manifold for a EGT probe on the car so I'd have thought similar could be used for the hole. Pop rivit idea stuck, but something deformable, possibly a screw-up system, plastic-steel type sealant? Link to comment Share on other sites More sharing options...
THOR Racing Posted July 12, 2003 Share Posted July 12, 2003 Yes. That deformation idea is a thought. I know I've used water level sensors which require drilling into the bottom of the water tank and inserting the level sensor. Now of course you have no way to reach the inside to the tank so it's a deforming rubber section which is crushed/squashed upon tightening the nut, making a water tight seal. Somthing MIGHT exist like this. I cannot vouch for it's effectiveness on an exhaust. Regards Pete Link to comment Share on other sites More sharing options...
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