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Ellis.H.McGaughy(at)usa.d
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 Posted: Fri Jul 13, 2012 9:59 am Post subject: Plastic Brake Lines |
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Any real world experience with Vans plastic brake lines? One thing is
for sure, they are light and cheap. I am just wondering about
connection leaks and longevity.
Thanks
Ellis.
RV-7a fuse
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bicyclop(at)pacbell.net
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| Posted: Fri Jul 13, 2012 10:53 am Post subject: Plastic Brake Lines |
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Howdy Ellis,
I had the plastic ones from the reservoir to the master cylinders and had several instances of leakage over the course of some years. This is on the no pressure side. I re-did my reservoir lines with flex hoses and that is the sure fire leak cure. The brass fittings work better than the nylon ones, but I still wound up with leaks over time.
Using the plastic lines for the high pressure side is for sure going to leak at some point. Whatever you do, don't use plastic all the way to the calipers. It gets hot down there and you'll wind up with a leak and a fire. My advice is to use flex lines everywhere there is movement and the aluminum lines where you can. I went with -3 flex lines for an even harder pedal feel. Bonaco will make them for you with clear plastic sheath on for abrasion protection. Ask for Brett (at) 909-985-3429. You can get -3 hoses premade (no sheath) at Pegasus Racing and other sources as well.
Pax,
Ed Holyoke
On 7/13/2012 10:54 AM, Ellis H McGaughy wrote: [quote] | Quote: | --> RV-List message posted by: Ellis H McGaughy <Ellis.H.McGaughy(at)usa.dupont.com> (Ellis.H.McGaughy(at)usa.dupont.com)
Any real world experience with Vans plastic brake lines? One thing is
for sure, they are light and cheap. I am just wondering about
connection leaks and longevity.
Thanks
Ellis.
RV-7a fuse
Sent from my iPad
This communication is for use by the intended recipient and contains
information that may be Privileged, confidential or copyrighted under
applicable law. If you are not the intended recipient, you are hereby
formally notified that any use, copying or distribution of this e-mail,
in whole or in part, is strictly prohibited. Please notify the sender by
return e-mail and delete this e-mail from your system. Unless explicitly
and conspicuously designated as "E-Contract Intended", this e-mail does
not constitute a contract offer, a contract amendment, or an acceptance
of a contract offer. This e-mail does not constitute a consent to the
use of sender's contact information for direct marketing purposes or for
transfers of data to third parties.
Francais Deutsch Italiano Espanol Portugues Japanese Chinese Korean
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ceengland(at)bellsouth.ne
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| Posted: Fri Jul 13, 2012 10:56 am Post subject: Plastic Brake Lines |
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On 07/13/2012 12:54 PM, Ellis H McGaughy wrote:
| Quote: |
Any real world experience with Vans plastic brake lines? One thing is
for sure, they are light and cheap. I am just wondering about
connection leaks and longevity.
Thanks
Ellis.
RV-7a fuse
IIRC, the 1st -4 that I bought had plastic lines, & I never had a
|
problem. The plane had ~700 hrs on it when I sold it. But I'm based on a
long grass strip, so I have a bit of help with stopping.
I've heard stories of heavy brake use melting the lines followed in some
cases by fire. Of course, I also have a friend who had an aluminum line
fatigue & blow a hole in the line inside the pant, causing a fire.
The -4 I'm flying now has aluminum lines in Van's stock configuration.
No problems with the lines with over 1100 hrs on the plane.
Don't know if that helps much....
Charlie
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carl.froehlich(at)verizon
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| Posted: Fri Jul 13, 2012 12:31 pm Post subject: Plastic Brake Lines |
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10 years using the stock Van’s plastic lines on the low pressure side in my 8A (per plan). No leaks. I did use the brass ferrule on the fittings and recommend using them. The high pressure side is ¼” aluminum tubing per plans.
Carl
From: owner-rv-list-server(at)matronics.com [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Ed Holyoke
Sent: Friday, July 13, 2012 2:51 PM
To: rv-list(at)matronics.com
Subject: Re: Plastic Brake Lines
Howdy Ellis,
I had the plastic ones from the reservoir to the master cylinders and had several instances of leakage over the course of some years. This is on the no pressure side. I re-did my reservoir lines with flex hoses and that is the sure fire leak cure. The brass fittings work better than the nylon ones, but I still wound up with leaks over time.
Using the plastic lines for the high pressure side is for sure going to leak at some point. Whatever you do, don't use plastic all the way to the calipers. It gets hot down there and you'll wind up with a leak and a fire. My advice is to use flex lines everywhere there is movement and the aluminum lines where you can. I went with -3 flex lines for an even harder pedal feel. Bonaco will make them for you with clear plastic sheath on for abrasion protection. Ask for Brett (at) 909-985-3429. You can get -3 hoses premade (no sheath) at Pegasus Racing and other sources as well.
Pax,
Ed Holyoke
On 7/13/2012 10:54 AM, Ellis H McGaughy wrote: | Quote: | | --> RV-List message posted by: Ellis H McGaughy <Ellis.H.McGaughy(at)usa.dupont.com> (Ellis.H.McGaughy(at)usa.dupont.com) Any real world experience with Vans plastic brake lines? One thing isfor sure, they are light and cheap. I am just wondering aboutconnection leaks and longevity. Thanks Ellis. |
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7= - The RV-List Email Forum utilities such as List Photoshare, and much much --> http://www.matronics.================[/b][/quote]http://forums.matronics.com - List Contribution Web Site -Matt Dralle, href="http://www.matronics.com/contribution">http://www.matronics.com/c=[/b]Any real world experience with Vans plastic brake lines? One thing is[/quote]8
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Ed Anderson
Joined: 10 Jan 2006
Posts: 475
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| Posted: Sat Jul 14, 2012 3:06 am Post subject: Plastic Brake Lines |
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I originally installed Van's plastic lines for the passengers brakes (inside
cockpit) per the then convention for an Rv-6A back in 1994. I replaced them
before ever flying, when I tugged on a supposedly secured connection and
the line pulled out - yes, the kernel was installed. I replace them with
regular hose brake lines.
As you know, Charlie, I had a brake fire in which I almost lost the
aircraft - but, that incident was associated with an apparent fatigue brake
in the loop of aluminum around the lower landing gear to absorb the flexing
as the brake caliper road in and out. After that, I replace the gear lines
with stainless steel Teflon brake lines. I personally recommend going with
the -4 ss Teflon line brake lines. They certainly cost more and are a bit
heavier - but, peace of mind is worth it.
Ed
--------------------------------------------------
From: "Charlie England" <ceengland(at)bellsouth.net>
Sent: Friday, July 13, 2012 2:54 PM
To: <rv-list(at)matronics.com>
Subject: Re: Plastic Brake Lines
| Quote: |
On 07/13/2012 12:54 PM, Ellis H McGaughy wrote:
>
> McGaughy<Ellis.H.McGaughy(at)usa.dupont.com>
> Any real world experience with Vans plastic brake lines? One thing is
> for sure, they are light and cheap. I am just wondering about
> connection leaks and longevity.
>
> Thanks
>
> Ellis.
> RV-7a fuse
>
IIRC, the 1st -4 that I bought had plastic lines, & I never had a problem.
The plane had ~700 hrs on it when I sold it. But I'm based on a long grass
strip, so I have a bit of help with stopping.
I've heard stories of heavy brake use melting the lines followed in some
cases by fire. Of course, I also have a friend who had an aluminum line
fatigue & blow a hole in the line inside the pant, causing a fire.
The -4 I'm flying now has aluminum lines in Van's stock configuration. No
problems with the lines with over 1100 hrs on the plane.
Don't know if that helps much....
Charlie
-----
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http://www.matronics.com/Navigator?RV-List |
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_________________
Ed Anderson
Rv-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com |
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