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CJohnston(at)popsound.com
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 Posted: Thu Nov 08, 2007 12:16 pm Post subject: Aftermarket brake lines |
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Hey all -
Had minor surgery a few days ago, and I'm stuck resting at home. can't really build, but I'm home from work. it's kind of like my own personal hell. I'm slowly going crazy, and it's only been a couple days. I figured i'd do brake lines, as that seems to be less strenuous than sanding fiberglass. I went different from the factory setup, and thought i'd share my findings. i've also completely re-done my website for no good reason other than that I've been bored. if you had any bookmarks, they probably don't work anymore. sorry. anyway, the brakeline writeup is here:
http://www.perfectlygoodairplane.net/Perfectlygoodairplane/Aftermarket_Brake_Lines.html
cj
building an airplane - not sure what section anymore...
www.perfectlygoodairplane.net
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bcondrey
Joined: 03 Apr 2006
Posts: 580
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| Posted: Thu Nov 08, 2007 2:19 pm Post subject: Aftermarket brake lines |
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Very nice!
Bob #40105
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bpattonsoa(at)yahoo.com
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| Posted: Thu Nov 08, 2007 4:14 pm Post subject: Aftermarket brake lines |
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The pictures look just like mine on my RV-6A. They are wonderful, however ....
When doing taxi tests, every time I applied the brakes, there was a resonance vibration that, within seconds, sheared the wheel fairing plate aluminum at the mounting bolts. I changed pads, fairing plates, drained and refilled the system 4 (5? 10?) times, mounted a video cam on the step to film the destruction and vibration, and basically went crazy for about five days. Talked to Vans, sent them the video, ordered new plates (twice or three times), removed the co-pilot brake system, rerouted tube, could drain and refill the entire system in minutes. Then I changed to the aluminum tube like the plans show, and have flown hundreds of wonderful, silent, hours. Van even wrote it up in the newsletter, it was so weird.
So, if it works, great. If it does not, you can change it without a lot of hours wasted. I looked at a couple of certified Cessna, and they have the same as Van recommends, and some of those have been around since they invented airplanes.
Bruce Patton
Chris Johnston <CJohnston(at)popsound.com> wrote:
[quote]Hey all -
. anyway, the brakeline writeup is here:
http://www.perfectlygoodairplane.net/Perfectlygoodairplane/Aftermarket_Brake_Lines.html
cj
building an airplane - not sure what section anymore...
www.perfectlygoodairplane.net
[b]
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robin1(at)mrmoisture.com
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CJohnston(at)popsound.com
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speckter(at)comcast.net
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| Posted: Mon Nov 12, 2007 6:01 pm Post subject: Aftermarket brake lines |
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Just for the sake of knowledge. My 1969 Cessna has solid break lines like
Van's. It is still in service after 3500 hours. Just so folks know.
Gary
40274
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jhstarn(at)verizon.net
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| Posted: Mon Nov 12, 2007 7:29 pm Post subject: Aftermarket brake lines |
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| Quote: | From: gary <speckter(at)comcast.net>
Date: 2007/11/08 Thu PM 02:43:04 CST
To: rv10-list(at)matronics.com
Subject: RE: Aftermarket brake lines
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[quote]
Just for the sake of knowledge. My 1969 Cessna has solid break lines like
Van's. It is still in service after 3500 hours. Just so folks know.
Gary
40274
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Tim Olson
Joined: 25 Jan 2007
Posts: 2881
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| Posted: Mon Nov 12, 2007 8:01 pm Post subject: Aftermarket brake lines |
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When installing my brake lines I had heard of a couple of RV's having
failures in the twist around the axle area. It flexes a lot over time,
being just a rod of metal, and there have been some that cracked
through.
With this in mind, I installed braided stainless teflon lines for the
lower couple of feet on the gear legs. I would have went flex all
the way, but at the time I wanted it done right way without ordering
lines, and I figured it would be easier to just splice in the required
amount of solid tubing to make the remainder of the run from the flex.
They've worked very well for over 300 hours, and no issues.
Recently I know of one RV-10 that cracked through their line up at
the top of the gear leg, and almost broke the line in two, and had
a brake failure. This prompted that builder to recommend going flex
the entire way. I was also made aware of an RV-10 that was found to
have the solid tubing line rubbing on a bolt head down by the wheel
and it had rubbed almost 100% through the tubing sidewall.
This prompted me to finally go buy chafe sleeved stainless braided
teflon tubing lines to go from fuselage to brake caliper, which I'll
be installing when I go to balance my tires very soon. I bought -3
sized lines, with -4 sized fittings, and paid under $25 or $30 each
for them. So far I'm thrilled with the flex lines on both the fuel
and the brakes. I just can't wait to get rid of the rest of the
hard tubing on the top end of the axle. The legs on this plane
flex enough that I'd much rather not have work-hardened AL tubing
on those flex areas.
Tim Olson - RV-10 N104CD - Flying
do not archive
jhstarn(at)verizon.net wrote:
[quote]
> From: gary <speckter(at)comcast.net>
> Date: 2007/11/08 Thu PM 02:43:04 CST
> To: rv10-list(at)matronics.com
> Subject: RE: Aftermarket brake lines
>
>
> Just for the sake of knowledge. My 1969 Cessna has solid break lines like
> Van's. It is still in service after 3500 hours. Just so folks know.
>
> Gary
> 40274
>
> --
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