![]() This is what I use on the gaskets, including the head-to-pipe. However, I've never used this paste before. They seem to have a good reputation for quality products. The exhaust paste that I bought is by Wurth. By small I mean something in the order of. I'm looking for a way to seal up any small gaps along the mating surface. That was the same stuff we tried on the cheap empi exhaust (cheap assed thin gaskets from empi) I had. It stinks like hell as it cures, not a nice pungent aroma but a mean stink. I have had very good luck with Permatex Ultra-High Temp copper RTV, it has a dull coppery look, not bright orange, and is suitable for oxygen sensor installations etc. It may last a week or so, then it will turn to powder from the heat. This is the last big project keeping me from getting it back on the road. I don’t want it crumbling down the road and causing an exhaust leak. Has anyone used hi-temp Red or Copper RTV on exhaust flanges with success? I have some exhaust assembly paste but that stuff turns hard. I will attempt to file and hammer them flat. The trouble spot will be the flanges at the end of the manifold coming off the head. ![]() I have the so-called “squishy” gaskets and have spent way too much time filing down the flange mating surfaces to get them flat. ![]() Karl has sent me an awesome set of u-pipes and heat exchangers. I will be reassembling the exhaust on my 77 Westy. View original topic: Has anyone used RTV to seal exhaust flanges? :: View topic - Has anyone used RTV to seal exhaust flanges? Forumsįorum Index -> Bay Window Bus -> Has anyone used RTV to seal exhaust flanges? ![]()
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