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-   -   Check those fuel lines... (https://vansairforce.net/community/showthread.php?t=107479)

Walt 12-10-2013 08:10 PM

Quote:

Originally Posted by Wayne Gillispie (Post 833434)
Is it a diesel powered -10? I noticed the yellow jugs for draining the tanks.

Funny.. no diesel, without the kerosene heater running I can't feel my hands!
This weather is just not right for Texas!

BillL 12-10-2013 08:15 PM

Thanks for sharing Walt, you find a lot of stuff, too bad you aren't closer, I could use your eye. Meanwhile, I was planning on pressure (air) testing my fuel system in stages. 1. fuel pump assay, 2. 1+ selector valve and all cabin connections. Then that leaves each tank, and FWF. The plan was to use 50 psi and let it linger and if pressure drops then search for the leak. Fantastik works well for this purpose, taking care for drips on the aluminum of course. I have plugs for the connections and will not use an addition volume of air.

What do you think about this progressive validation approach?

Thanks in advance.

Toobuilder 12-10-2013 08:17 PM

But wait! It has torque stripe on the fittings... how could it leak? ;)

Wayne Gillispie 12-10-2013 08:33 PM

Quote:

Originally Posted by Walt (Post 833443)
Funny.. no diesel, without the kerosene heater running I can't feel my hands!
This weather is just not right for Texas!

Hey, stay warm and thanks for posting.

Walt 12-10-2013 08:35 PM

Quote:

Originally Posted by BillL (Post 833445)
Thanks for sharing Walt, you find a lot of stuff, too bad you aren't closer, I could use your eye. Meanwhile, I was planning on pressure (air) testing my fuel system in stages. 1. fuel pump assay, 2. 1+ selector valve and all cabin connections. Then that leaves each tank, and FWF. The plan was to use 50 psi and let it linger and if pressure drops then search for the leak. Fantastik works well for this purpose, taking care for drips on the aluminum of course. I have plugs for the connections and will not use an addition volume of air.

What do you think about this progressive validation approach?

Thanks in advance.

I personally like testing with fuel, others may have good luck with air but I've seen plenty of tanks that were "pressure" tested with air leak when fuel was put in them.

Plumbing is really pretty simple stuff, goop the pipe threads and tighten the **** out of them, then make a good flare and put it together, look ma no leaks

Wayne Gillispie 12-10-2013 08:37 PM

Quote:

Originally Posted by BillL (Post 833445)
Thanks for sharing Walt, you find a lot of stuff, too bad you aren't closer, I could use your eye. Meanwhile, I was planning on pressure (air) testing my fuel system in stages. 1. fuel pump assay, 2. 1+ selector valve and all cabin connections. Then that leaves each tank, and FWF. The plan was to use 50 psi and let it linger and if pressure drops then search for the leak. Fantastik works well for this purpose, taking care for drips on the aluminum of course. I have plugs for the connections and will not use an addition volume of air.

What do you think about this progressive validation approach?

Thanks in advance.

I used this...

http://www.waresdirect.com/products/...FepaMgodT1gAOA

and this...

http://www.amazon.com/UEi-Test-Instr.../dp/B000HHTY7Q

Or pay your HVAC guy a svc call to check for you. They should have both of these items. Use nothing corrosive around your plane or it may come back to bite down the road.

Walt 12-10-2013 08:49 PM

Quote:

Originally Posted by Toobuilder (Post 833447)
But wait! It has torque stripe on the fittings... how could it leak? ;)

Very good, Daniel-san!

wjb 12-10-2013 08:58 PM

Quote:

Originally Posted by Walt (Post 833399)
One of the more important things is lubricating the cone before starting the process, if you don't you will "smear" the metal in the flare.

I've found that the aviation isle of my favorite bike shop has a good, light lube for flaring:

http://www.whitelightningco.com/products/epic.htm

Kerosene is often recommended; I don't have that around the house, but this I do. The flares come out very smooth ad pretty ... unlike the ones posted in here.

Tim 8-A 12-10-2013 09:19 PM

OMG those flares look terrible, it's hard to catch in a Prebuy.
I was afraid it was going to turn ugly when you got into the tunnel.
Thanks for taking to time to make it right.

Mark Dickens 12-11-2013 05:19 AM

Quote:

Originally Posted by Walt (Post 833456)
goop the pipe threads and tighten the **** out of them

My understanding was that AN fittings were to be installed with dry threads...I take it that I am misinformed?


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