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Tech Area => General Buick Tech => Topic started by: Dale G on September 04 2020, 05:47:35 AM

Title: Exhaust elbow
Post by: Dale G on September 04 2020, 05:47:35 AM

  Hi everyone, hope you are all safe.
I purchased a used elbow and had a friend port and polished, is their a copper gasket to seal it or can I just use high temp RTV. Thanks in advance.

  Dale

Title: Re: Exhaust elbow
Post by: Steve Wood on September 04 2020, 09:14:09 AM

I have never used anything.  Just bolted them up and called it good.  I always used the one I took off my car and I don't know if that helps, or not.  The factory did not use one.

If you want to use something, you could try about 1/16" layer of red high temp.  Smooth it out nice and even, let it set about 30 minutes and then bolt it on.  Let it set overnight and pray like heck that if you need to take it off again, that it will let go and come off.  Setting for the 30 minutes should make it less gluey.

Title: Re: Exhaust elbow
Post by: Dale G on September 05 2020, 12:04:25 AM

Thanks Steve, I'll try without any, as always thanks for your expertise much appreciated.

Title: Re: Exhaust elbow
Post by: Recap on September 06 2020, 10:52:45 PM

Steve is spot on, no sealant required.  None used from the factory.