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10-27-2010, 04:58 AM
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Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,840
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Contact Tom Swearingen..
...at TS Flightlines. All he needs is lengths and diameters. He recently made me new stainless braided, firesleeved hose with stainless fittings for my -10, fuel and oil lines, for only $389!!
http://www.tsflightlines.com/
Best,
__________________
Pierre Smith
RV-10, 510 TT
RV6A (Sojourner) 180 HP, Catto 3 Bl (502Hrs), gone...and already missed
Air Tractor AT 502B PT 6-15 Sold
Air Tractor 402 PT-6-20 Sold
EAA Flight Advisor/CFI/Tech Counselor
Louisville, Ga
It's never skill or craftsmanship that completes airplanes, it's the will to do so,
Patrick Kenny, EAA 275132
Dues gladly paid!
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10-27-2010, 08:45 AM
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Join Date: Feb 2005
Posts: 1,082
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In our area we have a chain of hydraulic/pneumatic hose & fittings shops called Calliflower. I'm sure there are similar types of places in your area. They deal with all types of hoses and fittings for the trades and are extremely reasonably priced compared to the usual suspects.
When I've needed hoses I go there and have them custom made. They will also pressure test the hoses for you. They have so many different types of hoses and fittings its like a candy store for guys like us.
__________________
Mike
JAMES AIRCRAFT.com
Flying - RV8 Hot Rod "Drone Killer"
Flying - RV8 "Look'n Good"
RV4 - FAST & FUN! Rebuilt, Flown, Sold
RV-7A Built, Flown, Sold
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10-27-2010, 01:39 PM
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Join Date: Dec 2004
Location: Southlake, Texas
Posts: 626
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Christen special fittings
Iron Flight,
Make sure you get the special plug for the oil feed line at the swivel fitting, the special positive G lower sump pickup fitting, and oil return/ inverted breather sump fitting.
I also recommend you switch from the standard inverted oil pickup to the vacuum pump pad inverted oil pickup fitting. I got that one from Bart at Aero Sport Engines.
__________________
Danny King
Beautiful Doll 80434 TT 1675 hours
I0360 A1B6 200 HP
Christen Inverted Oil
First Flight 12 July 2000
VAF Dues current for 2020
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10-27-2010, 02:32 PM
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Join Date: Jul 2009
Location: Mojave
Posts: 4,652
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May be just one data point, but be very aware of the hose you do use. When I bought my Hiperbipe one of the hoses found chaffed on the pre buy inspection. A new hose was fabbed on the spot with brand new off the roll Aeroquip hose by an A&P. 3 hours into the flight home, my oil pressure dropped to ~30 PSI, requiring a landing at the nearest airport. Long story short, the new hose collapsed on itself internally due to suction (no visible defect from outside) and seriously restricted flow. I've never even heard of that before.
Based on this, this is one area where I think it's good to buy high quality hose from the start (and another reason why I avoid hose unless absolutely required).
__________________
WARNING! Incorrect design and/or fabrication of aircraft and/or components may result in injury or death. Information presented in this post is based on my own experience - Reader has sole responsibility for determining accuracy or suitability for use.
Michael Robinson
______________
Harmon Rocket II -SDS EFI
RV-8 - SDS CPI
1940 Taylorcraft BL-65
1984 L39C
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10-27-2010, 05:16 PM
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Join Date: Jul 2006
Location: Corvallis Oregon
Posts: 3,547
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What?
I'd be very interested in what is causing so much suction to collapse the hose in the first place.. Its not normal to deisgn an oil sysytem that will make that much suck..Reason being is if you get any kind of leak you could airlock your oil pump and seize the engine.
Sure you didn't have a partially plugged strainer at the end of that pipe?
Frank
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10-27-2010, 05:27 PM
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Join Date: Jul 2009
Location: Mojave
Posts: 4,652
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The strainer is between the hose and the pump. Even if clogged, that would lessen the suction seen by the hose. It failed because it was bad hose.
__________________
WARNING! Incorrect design and/or fabrication of aircraft and/or components may result in injury or death. Information presented in this post is based on my own experience - Reader has sole responsibility for determining accuracy or suitability for use.
Michael Robinson
______________
Harmon Rocket II -SDS EFI
RV-8 - SDS CPI
1940 Taylorcraft BL-65
1984 L39C
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10-27-2010, 06:18 PM
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Join Date: Apr 2010
Location: Ridgeland, SC
Posts: 2,589
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Michael--what kind
of hose was the one that collapsed?
Tom
__________________
Tom Swearengen, TS Flightlines LLC, AS Flightlines
Joint Venture with Aircraft Specialty
Teflon Hose Assemblies for Experimentals
Proud Vendor for RV1, Donator to VAF
RV7 Tail Kit Completed, Fuse started-Pay as I go Plan
Ridgeland, SC
www.tsflightlines.com, www.asflightlines.com
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10-27-2010, 07:23 PM
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Join Date: Mar 2006
Posts: 120
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"And do make your own hoses - they are the exact same thing!"
Oh, and when you do make your own hoses for your certified Christen inverted oil system and your engine siezes because you used the wrong hose or fitting from Walmart and it failed, starving the engine of oil, Aviat's gonna get dragged into court on that one too!
Sue first, settle later!
Given the nearly 1:1 ratio of lawyers-to-idiots in this country, it's amazing anyone manufactures anything anymore : )
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10-27-2010, 08:18 PM
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Join Date: Jul 2009
Location: Mojave
Posts: 4,652
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Quote:
Originally Posted by TS Flightlines
of hose was the one that collapsed?
Tom
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Don't know the PN, but it was not teflon lined... Just basic rubber with stainless outer braid. Looks like Stratoflex 156.
I still have the hose to show people who stop by the hangar.
__________________
WARNING! Incorrect design and/or fabrication of aircraft and/or components may result in injury or death. Information presented in this post is based on my own experience - Reader has sole responsibility for determining accuracy or suitability for use.
Michael Robinson
______________
Harmon Rocket II -SDS EFI
RV-8 - SDS CPI
1940 Taylorcraft BL-65
1984 L39C
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10-29-2010, 12:15 PM
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Join Date: Jul 2009
Location: Mojave
Posts: 4,652
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Tom (and anyone else),
Here's pictures:
#10 hose as removed from the airplane. One fitting removed in an attempt to figure out what happened.
Cut hose. Failed area is about 4 inches long - starts about 2" from the fitting end.
Section through the failed area.
Airplane has 1600 hours on it with no failure of this kind before or since. I suspect a bad batch of hose.
__________________
WARNING! Incorrect design and/or fabrication of aircraft and/or components may result in injury or death. Information presented in this post is based on my own experience - Reader has sole responsibility for determining accuracy or suitability for use.
Michael Robinson
______________
Harmon Rocket II -SDS EFI
RV-8 - SDS CPI
1940 Taylorcraft BL-65
1984 L39C
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