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Old 04-06-2021, 10:00 PM   #1
70STOVEBOLT
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Thread sealant on vac fittings?

What are your thoughts on using thread sealant on vacuum fitting threads? I am plumbing my vac gauge into the rear of my Edelbrock carb. Brass fitting into aluminum carb body. Yes or no on thread sealant?
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Old 04-07-2021, 12:20 AM   #2
Stocker
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Re: Thread sealant on vac fittings?

I'm no expert but I would definitely use a thin coat of teflon paste on the threads and then wrap teflon tape over the paste. I picked that up from a plumber and it works well on water pipe fittings. Should work equally well on vacuum fittings, especially with dissimilar metals where galling can be an issue.
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Old 04-07-2021, 02:07 AM   #3
truckster
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Re: Thread sealant on vac fittings?

On any threads I want to make sure are sealed I use a thin coat of Permatex aviation gasket sealer.
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