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On 12/17/2013 8:34 AM, jskmberki@windstream.net wrote:
What are builders using on NPT threads when connecting sensors, oil lines, fuel lines and water lines? Do you use fuel lube for gas? Is teflon tape a no no? Do you apply anything to the B nut when installing AN fittings? Thanks for any help
Joe Berki
Limo EZ
Nothing at all on A/N flair fittings; the flare should do the sealing. Teflon tape is considered bad news for anything oil or fuel related; it can shed pieces that will clog small passages. Teflon paste type sealant is fine for oil. Fuel Lube (brand name) should work for NPT fuel fittings; there's another product that's much easier to find (any good plumbing supply) but I've forgotten the name. I'll find my can next trip to the hangar.
Charlie
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