like the title says! i have a exhaust leak and i want to know what you guys put on your threads for that metal to metal connection. is there a gasket? rtv silicon? high temp stuff?

 

so everyone just runs there pyro with the probe straight through the metal on the exhaust manifold?no gaskets?

 

No gaskets.. The fitting you tap into the manifold is NPT (National Pipe Thread) and is a tapered thread. The more you tighten it, the fatter it gets in the hole. No worries about leaks in any of the many I have installed.

 

i used anti seize on mine when it drys it might be like a little bit of a gasket

 

i as well have a pyro leak, im gona fix it one day by using a reducing bushing can be bought at any hardware store or auto parts store, seems like the right way to go.

 

i just don't want to put something thats gonna burn up. i didn't tighten it that much when i installed it because i didn't want to strip those threads

 

If you strip the threads you did not tap it correctly. You should have about 4 turns engagement by hand then turn it maybe 2 more turns to tighten.

Anti-seize is the only thing you should put on it and that is not used as a thread sealant.

 

Anti-Sieze is a good bet.. I forgot about that, but really its for when you want to take it out. The cast metal in the manifold is nice and soft and should seal.. Most pyros come with brass fittings, I used stainless.

 

thanks guys. i will go put a little more turn into the fitting and the probe.

 

Mine was put in by a guy that I think hadn't done too many. I had a leak and fixed it with furnace cement. Its by the wood burning stove supplies at the hardware store. A little brittle but you get a whole tub for around $3.

 

my leaky pyro didnt even have threads