Making brake lines

A forum in which to discuss topics that are not specific to a particular series of aircraft (ie. how to cut alclad)
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Wicked Stick
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Joined: Wed Feb 09, 2005 10:00 pm
Location: KEWB

Post by Wicked Stick »

I've recently made up my own Stainless Steel braided Oil Cooler hoses using AN quality fittings and hose from Pegasus Racing.

They also sell end cap fittings for pressure testing them.
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I bought the -8 set and tested them in my kitchen sink underwater just last night. Worked out great except the end cap from the test kit had a defect on the sealing surface so I'm waiting for a new end cap to be shipped to me and I'll retest them.

I put about 90 psi in them for now and I can see no leaks (air bubbles) other than the end cap so far.

Which begs the question... How high of a pressure do you really need to test for.. I can't see testing to 500 psi if the hose in service will not see over 120.
Dave "WS" Rogers
RV-8 (125 hrs & counting)
N173DR

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captain_john
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Post by captain_john »

I seem to recall somewhere being instructed to test for twice the operating pressure.

Which then creates the second question; what IS the operating pressure!?!

If I were a betting man, I would say the brakes on an RV would rarely exceed 500 psi.

I could be wrong...

I dunno?

:? CJ
RV-7
Garmin G3X with VP-X & a TMX-IO-360 with G3i
It's all over but the flying! 800+ hours in only 3 years!

Midnight Sun
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Post by Midnight Sun »

captain_john wrote:
If I were a betting man, I would say the brakes on an RV would rarely exceed 500 psi.
My guess is that would depend on how fast the trees are coming at you.
Maesure with a micrometer, mark it with a crayon, cut it with an ax.

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captain_john
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Post by captain_john »

Hahahaha

or the water (as in an email attachment that I just recently sent many people on this board)!

:) CJ
RV-7
Garmin G3X with VP-X & a TMX-IO-360 with G3i
It's all over but the flying! 800+ hours in only 3 years!

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