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  #1  
Old 02-11-2016, 12:19 PM
Av8torTom's Avatar
Av8torTom Av8torTom is offline
 
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Default Brake line fittings
I'm running my brake lines - in particular the brass elbows that screw into the brake cylinders. Do these get any sort is sealant on the threads?

Thanks,

Tom
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  #2  
Old 02-11-2016, 12:24 PM
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Carl Froehlich Carl Froehlich is offline
 
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Yes. I use a Teflon pipe thread sealant like Locktite 567 on all pipe fittings.

Use sparingly and keep away from the first thread.

Carl
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  #3  
Old 02-11-2016, 12:29 PM
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... and tighten the heck out of it.
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Where is N666BK?

Не имей сто рублей, а имей сто друзей.
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  #4  
Old 02-11-2016, 12:32 PM
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Av8torTom Av8torTom is offline
 
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Regular plumbers Teflon tape?
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N677AT reserved
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Picture log: http://s271.photobucket.com/albums/j...8tor215/RV-9A/
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  #5  
Old 02-11-2016, 12:43 PM
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Carl Froehlich Carl Froehlich is offline
 
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Quote:
Originally Posted by Av8torTom View Post
Regular plumbers Teflon tape?
No. Do not use Teflon Tape anywhere on an airplane.
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  #6  
Old 02-11-2016, 12:46 PM
Rupester Rupester is offline
 
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No .... not teflon tape. Use a good sealant as suggested above. Do NOT use EZ Turn fuel lube.
The suggestion to tighten them WAY down is spot-on. Bleeding brakes is enough of a pain, let alone when you have mini-leaks sprouting at the brake pedals. Each newly discovered leak often requires starting the bleeding process all over.
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  #7  
Old 02-11-2016, 12:54 PM
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Av8torTom Av8torTom is offline
 
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Ok got it...
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RV-9A (empennage completed, both wings completed, fuselage and finish kit completed, engine hung, working on panel and wiring)
N677AT reserved
Superior XP O-320, 160HP
Picture log: http://s271.photobucket.com/albums/j...8tor215/RV-9A/
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  #8  
Old 02-11-2016, 01:46 PM
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airguy airguy is online now
 
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Teflon paste, looks like thick white toothpaste.
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N16GN flying 700 hrs and counting; IO360, SDS, WWRV200, Dynon HDX, 430W
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
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  #9  
Old 02-11-2016, 02:46 PM
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Av8torTom Av8torTom is offline
 
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Thanks, can it be purchased locally? Auto store? Hardware store?
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RV-9A (empennage completed, both wings completed, fuselage and finish kit completed, engine hung, working on panel and wiring)
N677AT reserved
Superior XP O-320, 160HP
Picture log: http://s271.photobucket.com/albums/j...8tor215/RV-9A/
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  #10  
Old 02-11-2016, 03:02 PM
rightrudder rightrudder is offline
 
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I second the Loctite 567 recommendation. Great stuff and no signs of a leak anywhere on my aircraft. With those NPT elbows, I'd err on the side of too tight rather than too loose when it's clocked in the final position. Even when they're "snug" it's usually possible to tighten them another full turn.

You might have to mail-order the stuff, but I'm guessing you can get it through Amazon with two-day shipping.
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