Noz Posted June 11, 2013 Share Posted June 11, 2013 What's recommended for this thread on the exhaust gas temperature bung welded on the manifold? NPT tape only goes to a couple hundred degrees. I'll hunt around for some loctite, but not sure that's going to be high enough either. What's recommended? Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted June 11, 2013 Share Posted June 11, 2013 It should be a tapered thread, or at least have a compression olive, so shouldn't need any thread sealer, if your really bothered i guess you could use a small amount of exhaust sealer paste, but it may make it difficult to remove. Quote Link to comment Share on other sites More sharing options...
Noz Posted June 11, 2013 Author Share Posted June 11, 2013 NPT doesn't have the olive, that component is on the sensor on top of the fitting. The lower end of the fitting has the NPT and there's no way to know how to seal it Quote Link to comment Share on other sites More sharing options...
David P Posted June 11, 2013 Share Posted June 11, 2013 It's a tapered thread Noz, just tighten it up and the jobs jobbed. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted June 11, 2013 Share Posted June 11, 2013 NPT doesn't have the olive, that component is on the sensor on top of the fitting. The lower end of the fitting has the NPT and there's no way to know how to seal it NPT taper illustrated here. http://withfriendship.com/images/i/42358/npt-national-pipe-thread.jpg Quote Link to comment Share on other sites More sharing options...
Noz Posted June 11, 2013 Author Share Posted June 11, 2013 Ok so by this I'm assuming a tapered thread would be considered to seal on it's own. I work with NPT's all the time at work, and never heard of just using them to seal on their own. It would 100% leak with most gas low pressure applications, so I've never considered not using anything. I'll just lube it up and ram it in Thanks for your help guys Quote Link to comment Share on other sites More sharing options...
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