oil return
I drilled and tapped my pan for 3/8" NPT, but what do you guys use to seal up the threads? Tig welding is out of the question, so i dont know if i should use loctite or some sealant or what?
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teflon tape.
NPT thread is technically self-sealing. however, it should always be used with teflon tape as it acts both as a sealant and lubricant and helps the threads seal better. |
Many here including myself have JBwelded the thing on. No leaks thus far..
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JB weld on the threads. teflon tape is a horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible idea
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+1 Teflon tape can come loose in your oil pan and clog oil pickups, oil ports, etc.
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Keep teflon tape away from your engine in general. The probability of it causing catastrophic damage (eg, by entering a lifter) is pretty low, but there's no sense tempting fate. Even overlooking that fact, it's not the best product available for this purpose.
A bit of JB-weld dressed into the threads just before you screw the fitting into the pan seems to work wonders. Not only does it seal well and resist heat and oil once cured, but it's pretty much the ultimate threadlocker. |
Originally Posted by Braineack
(Post 884066)
JB weld on the threads. teflon tape is a horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible idea
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He's just repeating the words his parents called him.
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Well fuсk you guys. Teflon tape is where it's at. If you use it right, pieces of it will not come off. If you're paranoid feel free to use teflon paste.
http://en.wikipedia.org/wiki/National_pipe_thread This means that NPT fittings should be burr free and lubricated using a lubricating material like lubricating paste or tape. |
Originally Posted by soviet
(Post 884244)
Well fuсk you guys. Teflon tape is where it's at. If you use it right, pieces of it will not come off. If you're paranoid feel free to use teflon paste.
http://en.wikipedia.org/wiki/National_pipe_thread I'm not sure about JB Weld unless you never intend removing it... so I wouldn't unilaterally replace Teflon paste/tape with JB Weld either. |
Originally Posted by gslender
(Post 884246)
The temperature limit of Teflon is usually around 200 deg C so I guess there is thermal concerns that might be valid too.
I'm not sure about JB Weld unless you never intend removing it... so I wouldn't unilaterally replace Teflon paste/tape with JB Weld either. |
Originally Posted by soviet
(Post 884244)
Well fuсk you guys. Teflon tape is where it's at. If you use it right, pieces of it will not come off. If you're paranoid feel free to use teflon paste.
http://en.wikipedia.org/wiki/National_pipe_thread |
Originally Posted by gslender
(Post 884246)
I'm not sure about JB Weld unless you never intend removing it... so I wouldn't unilaterally replace Teflon paste/tape with JB Weld either.
--Ian |
yeah but it holds well if you dont touch it.
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We're screwing it into a very thin oil pan with maybe 1.5 threads' worth of engagement depth. This is like comparing a knowledgeable, rational, articulate person to Pusha. |
Teflon is a bad idea for automotive applications. It was never really meant for it. Permatex has what you need: http://www.permatex.com/products/Aut...t_Compound.htm
There's a few options, but this is really what you want. It is reusable too, in that you can back it out a bit, screw it back in, and it will keep the seal. Not something you can really do with tape |
jbweld i have used with success.
just dont touch it when you initially install it, let it cure for the day. |
JB weld just works. Use it!
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jbweld x2, did the same on all of my setup
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How has nobody mentioned RTV? I used RTV over a year ago and I haven't seen a drop of oil come from that fitting.
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