F

Flyrod

Well Known Member
In case it is not clear in the picture, that is 100 LL seeping out of the steel braid. Well, after only about 12 hours on my new-to-me RV8, a check under the cowl found a leaking fuel hose! The hose looks great until you start sending fuel down it. All the other fuel hoses were covered with pyro wrap except these to pressure sensor hoses. These two hoses were aeroequip rubber hoses and I am sure the failure was caused by exposure to heat. They have been replaced by Teflon hoses rated to 450F service. The Aeroequip hoses without heat wrap are rated around 180F. Inspect and pressurize fuel hoses often!



http://i136.photobucket.com/albums/q169/Fly-rod/IMG_1640.jpg
 
Thats nothing that a good layer of fire sleeve couldn't have prevented. All of my steel braid lines that carry fuel are covered with fire sleeve.
Even using the teflon hoses should have fire sleeve on them...

-Jeff

XPfuelport.jpg
 
Here are the teflon fuel lines that came with my engine from Superior and they have fire sleeves. I dont think anyone has ponyed up for the integral fire sleeve hoses.

-Jeff

ENGINE%20028.jpg
 
Two questions:

What is the dark red end material?? Is the end dipped or wrapped in some kind of tape??

Where is the best place to get the small bandit strapping from?

I want to make my own hoses.

-Ron
 
Ron-

I made all of my own hoses. The ends are coated with High Temp Silicone and the straps and pliers are from Aircraft Spruce.

http://aircraftspruce.com/catalog/appages/aqfiresleeve.php

P/N 05-02653 ....AEROQUIP 900591b-1C for #8 size hose ...$1.59 ea.
P/N 05-02652 ....AEROQUIP 900591b-2C for #10 thru #14 ...$1.84 ea.

P/N 12-00684 .... are the pliers to crimp the clamps. (not listed on site)

-Jeff
 
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