[gregbazar]

Any pearls of wisdom on fuel system assembly? I am just starting.

Specifically - do I need to put some sort of plumbing teflon equivelant on the fittings? I have done alot of plumbing and know that things don't seal well without something.

While I understand that these are aluminum fittings, and most of them are compression fittings, there are still a few that seem to need - no beg - for goo.....

Thanks,

Greg

 

[Kyle Boatright]

Goo is not required on AN fittings.

I have 425 or so leak free hours on my goo-less fuel system.

 

[G-force]

Use a fuel and oil rated thread sealent on all NPT fittings such as Fuel Lube, PST, or Easy Turn. 37 deg AN fittings assemble dry.

 

[Mel]

Greg,
Do NOT use teflon tape on any aircraft fuel fittings. Use only a sealant on the pipe threads and nothing on the flare fittings. If you want, you can put just a drop of blue locktite on the flare fittings (not the threads), but it is not necessary.

 

[mburch]

I was always taught to use a small amount of something like Tite-Seal (Fuel Lube) on the threaded portion of a flare fitting, to act as an anti-sieze agent. Is this practice good, bad or indifferent?

Obviously nothing goes on the actual flare face, of course.

mcb

 

[alpinelakespilot2000]

I was always taught to use a small amount of something like Tite-Seal (Fuel Lube) on the threaded portion of a flare fitting, to act as an anti-sieze agent. Is this practice good, bad or indifferent?

Obviously nothing goes on the actual flare face, of course.

mcb

In the -9 manual in the fuselage section, Van's says to use EZ-Lube/Fuel Lube on the flared fittings. However, I've heard other places that the flared fittings should be done dry. So far I've gone dry.

 

[gregbazar]

Thanks

Thanks for the input. The flare fittings I can see doing dry - just as you do in plumbing, but the straight threads had me nervous.

I will get on over to Spruce and see what they have for me.

Greg

 

[fodrv7]

Sorting bits

Greg,
I initially found it hard to identify all the AN components, so I made up the attached.
You might find it helpful.
Used nothing on my AN connections. No leaks in 103 hrs.
Pete.