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04-06-2021, 10:00 PM
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#1 |
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Senior Member
 
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,467
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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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70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Sliding Rear Window Power Windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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04-07-2021, 12:20 AM
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#2 |
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20' Daredevil (Ret)
Join Date: May 2003
Location: Jefferson State
Posts: 13,749
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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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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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04-07-2021, 02:07 AM
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#3 |
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Registered User
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,998
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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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I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson |
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