Today's Message Index:
----------------------
1. 03:27 AM - Re: Re: gas card discount (RV6 Flyer)
2. 07:48 AM - Re: Another Brake Question (Charles Kuss)
3. 09:20 AM - Re: Question On Low-Pressure Brake Lines... (Matt Dralle)
4. 09:28 AM - Re: Question On Low-Pressure Brake Lines... (Matt Dralle)
5. 09:53 AM - Re: Question On Low-Pressure Brake Lines... (Matt Dralle)
6. 11:30 AM - Re: Re: Question On Low-Pressure Brake Lines... (Richard E. Tasker)
7. 05:01 PM - Re: Re: Question On Low-Pressure Brake Lines... (MikeNellis)
8. 08:58 PM - Re: Another Brake Question (Paul Besing)
Message 1
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| Subject: | Re: gas card discount |
I do not have one but know one friend that does. IIRC=2C it is only good w
hen you travel and not good at the airport you are based at.
Gary A. Sobek
"My Sanity" RV-6 N157GS O-320 Hartzell=2C
2=2C156+ Flying Hours So. CA=2C USA
From: David Cudney <yenduc@sbcglobal.net>
Sent: Friday=2C October 31=2C 2008 9:53:10 PM
Subject: RV-List: Re: gas card
discount
_________________________________________________________________
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Message 2
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| Subject: | Re: Another Brake Question |
Paul,
You are forgetting one thing about that Harbor Freight brake bleeder tool. It's
designed for automotive gylcol based fluids, which means that it's O-rings and
seals are made from EDPM, not Nitrile or Viton. You'll need to flush out the
aircraft mineral oil based brake fluid immediately after use, if you expect
to use the thing more than a few times.
Charlie Kuss
snipped
> BTW, harbor freight sells a really cool one man vacuum
> bleed kit that you hook air up to, and it has a nice large
> reservoir for collecting the brake fluid...plus a fluid
> supply bottle with a ball valve...nifty...$29.
>
> Paul Besing
>
>
>
>
>
> ________________________________
> From: Sam Buchanan <sbuc@hiwaay.net>
> To: rv-list@matronics.com
> Sent: Saturday, November 1, 2008 3:12:01 PM
> Subject: Re: RV-List: Another Brake Question
>
> <sbuc@hiwaay.net>
>
> linn Walters wrote:
> >
> > Yeah, but it's a PITA to change the pads. I would
> find out what's
> > going on and fix it. You'd hate to have a brake
> go out when you
> > really need it. And the cost may be more than $15
> then! ;-)
>
>
> 'Bout thirty minutes at most on an RV. Pads can removed
> from the wheel
> assembly in less time than it takes to remove the wheel
> pant.
>
> Sam Buchanan
Message 3
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| Subject: | Re: Question On Low-Pressure Brake Lines... |
Thank you for the feedback John. To run it parallel with the high pressure line
above it, I would have had to go up a couple of inches as it relates to the
reservoir since I have to go under the baggage floor. I was trying to make sure
that all of the run was at least slightly downward to keep gravity pulling
the fluid toward the master cylinder. Am I mis-understanding your comment?
Matt
At 08:54 AM 11/2/2008 Sunday, you wrote:
>Your workmanship is exceptional and a thing of beauty to behold.
>However, when I am performing Tech Inspections, I would caution builders
>on the use of a long continuous run as in your picture (2). I would
>have created the same sweep as the line above and run the straight line
>more parallel to the upper line.
>
>John Cox
>A&P, IA
>EAA Tech #5242
>
>-----Original Message-----
>From: owner-rv-list-server@matronics.com
>[mailto:owner-rv-list-server@matronics.com] On Behalf Of Matt Dralle
>Sent: Saturday, November 01, 2008 6:03 PM
>To: rv8-list@matronics.com; rv-list@matronics.com
>Subject: RV-List: Re: Question On Low-Pressure Brake Lines...
>
>Dear Listers,
>
>After some head scratching and a couple more tries, I think I came up
>with a new design for the low pressure side of the brake lines. With
>this design, there is a steady slope downward from the reservoir to the
>master calendars. Seems to be pretty substantial. My only concern is
>that right feed line going through that candy cane piece isn't really
>supported anywhere. Its pretty short and solid to the touch, but
>vibration might cause a issue. Since the bottom floor of the baggage
>area goes over the top, there's really nothing permanent I can attach it
>to short of making a bracket of some kind (yuck).
>
>So what do you guys think?
>
>Matt Dralle
>RV-8 #82880 N844RV (res)
>
>
>At 06:48 PM 10/28/2008 Tuesday, Matt Dralle wrote:
>
>>[snip]
>>
>>But here's my question. Notice that on the back side of the second
>bulkhead, I kind of looped the tubing up and around the hole for the
>vent. This also positioned tee fitting nicely to feed the left and
>right sides. The top of that loop is maybe 4 to 5" higher than the top
>of the reservoir, though. Is the flow from the reservoir to the master
>cylinders suppose to be basically "gravity fed" or is the "pump" action
>from the master cylinders all that is necessary to keep the tube and
>master cylinders full?
>>
>>Matt Dralle
>>RV-8 #82880 N844RV (res)
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
Message 4
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| Subject: | Re: Question On Low-Pressure Brake Lines... |
Ah! I understand. But those are the low pressure side so there really isn't any
"pressure" to speak of, is there? I do see your point from a best-practices
stand point and it was something that I didn't know.
Thanks!
Matt
At 09:23 AM 11/2/2008 Sunday, you wrote:
>No, however any line containing pressurized fluid contracts in length
>and expands in diameter, hence the need for flex by routing other than
>the "shortest distance between two connection points. It is spelled out
>in the AC43.13.
>
>John
>
>-----Original Message-----
>From: Matt Dralle [mailto:dralle@matronics.com]
>Sent: Sunday, November 02, 2008 9:16 AM
>To: John Cox
>Subject: RE: RV-List: Re: Question On Low-Pressure Brake Lines...
>
>Thank you for the feedback John. To run it parallel with the high
>pressure line above it, I would have had to go up a couple of inches as
>it relates to the reservoir since I have to go under the baggage floor.
>I was trying to make sure that all of the run was at least slightly
>downward to keep gravity pulling the fluid toward the master cylinder.
>Am I mis-understanding your comment?
>
>Matt
>
>At 08:54 AM 11/2/2008 Sunday, you wrote:
>>Your workmanship is exceptional and a thing of beauty to behold.
>>However, when I am performing Tech Inspections, I would caution
>builders
>>on the use of a long continuous run as in your picture (2). I would
>>have created the same sweep as the line above and run the straight line
>>more parallel to the upper line.
>>
>>John Cox
>>A&P, IA
>>EAA Tech #5242
>>
>>-----Original Message-----
>>From: owner-rv-list-server@matronics.com
>>[mailto:owner-rv-list-server@matronics.com] On Behalf Of Matt Dralle
>>Sent: Saturday, November 01, 2008 6:03 PM
>>To: rv8-list@matronics.com; rv-list@matronics.com
>>Subject: RV-List: Re: Question On Low-Pressure Brake Lines...
>>
>>Dear Listers,
>>
>>After some head scratching and a couple more tries, I think I came up
>>with a new design for the low pressure side of the brake lines. With
>>this design, there is a steady slope downward from the reservoir to the
>>master calendars. Seems to be pretty substantial. My only concern is
>>that right feed line going through that candy cane piece isn't really
>>supported anywhere. Its pretty short and solid to the touch, but
>>vibration might cause a issue. Since the bottom floor of the baggage
>>area goes over the top, there's really nothing permanent I can attach
>it
>>to short of making a bracket of some kind (yuck).
>>
>>So what do you guys think?
>>
>>Matt Dralle
>>RV-8 #82880 N844RV (res)
>>
>>
>>At 06:48 PM 10/28/2008 Tuesday, Matt Dralle wrote:
>>
>>>[snip]
>>>
>>>But here's my question. Notice that on the back side of the second
>>bulkhead, I kind of looped the tubing up and around the hole for the
>>vent. This also positioned tee fitting nicely to feed the left and
>>right sides. The top of that loop is maybe 4 to 5" higher than the top
>>of the reservoir, though. Is the flow from the reservoir to the master
>>cylinders suppose to be basically "gravity fed" or is the "pump" action
>>from the master cylinders all that is necessary to keep the tube and
>>master cylinders full?
>>>
>>>Matt Dralle
>>>RV-8 #82880 N844RV (res)
>
>
>Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
>925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
>http://www.matronics.com/ WWW | Featuring Products For Aircraft
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
Message 5
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| Subject: | Re: Question On Low-Pressure Brake Lines... |
Thanks for the tip, Mike. I actually did try these babies out. The problem on
the RV-8, though, is that with the adjustable rudder pedals at full "tall-person",
the mini-reservoir doesn't clear the firewall when the brakes are applied.
Here's a picture with one on the right master cylinder and full right rudder
applied, but no brake action. Notice that there is only about 1/16" of clearance
to the firewall. I wish that Grove had used a different fitting design
instead of just slapping a NPT M-M on the side. Its way too long. Anybody know
of a similar fitting that is about half as long?
Matt
At 06:46 PM 11/1/2008 Saturday, you wrote:
>
>Hi Matt,
>You've created a plumbing masterpiece but it's a ton of complication and cost.
Have you thought about just mounting the brake reservoir right on the brake
master cylinders?
>This is similar to the set up that I've used. $22/ea.
>
>Good luck.
>
>
>http://www.aircraftspruce.com/catalog/lgpages/remoteFluidReservoirs.php
>>Dear Listers,
>>
>>After some head scratching and a couple more tries, I think I came up with a
new design for the low pressure side of the brake lines. With this design, there
is a steady slope downward from the reservoir to the master calendars. Seems
to be pretty substantial. My only concern is that right feed line going through
that candy cane piece isn't really supported anywhere. Its pretty short
and solid to the touch, but vibration might cause a issue. Since the bottom
floor of the baggage area goes over the top, there's really nothing permanent
I can attach it to short of making a bracket of some kind (yuck).
>>
>>So what do you guys think?
>>
>>Matt Dralle
>>RV-8 #82880 N844RV (res)
>>
>>
>>
>
>
>Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
>925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
>http://www.matronics.com/ WWW | Featuring Products For Aircraft
>
Message 6
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| Subject: | Re: Question On Low-Pressure Brake Lines... |
If you don't mind a non-AN fitting, you can get a close nipple from
McMaster-Carr in a variety of materials. Just go to
http://www.mcmaster.com/ and search for close nipple.
They will not have a hex section so you will have to screw the two parts
together with the nipple between them, but since this is no-pressure
connection the final torque is not critical.
Dick Tasker
Matt Dralle wrote:
> Thanks for the tip, Mike. I actually did try these babies out. The problem
on the RV-8, though, is that with the adjustable rudder pedals at full "tall-person",
the mini-reservoir doesn't clear the firewall when the brakes are applied.
Here's a picture with one on the right master cylinder and full right rudder
applied, but no brake action. Notice that there is only about 1/16" of clearance
to the firewall. I wish that Grove had used a different fitting design
instead of just slapping a NPT M-M on the side. Its way too long. Anybody
know of a similar fitting that is about half as long?
>
> Matt
>
> At 06:46 PM 11/1/2008 Saturday, you wrote:
>
>>
>> Hi Matt,
>> You've created a plumbing masterpiece but it's a ton of complication and cost.
Have you thought about just mounting the brake reservoir right on the brake
master cylinders?
>> This is similar to the set up that I've used. $22/ea.
>>
>> Good luck.
>>
>>
>> http://www.aircraftspruce.com/catalog/lgpages/remoteFluidReservoirs.php
>>
>>> Dear Listers,
>>>
>>> After some head scratching and a couple more tries, I think I came up with
a new design for the low pressure side of the brake lines. With this design,
there is a steady slope downward from the reservoir to the master calendars.
Seems to be pretty substantial. My only concern is that right feed line going
through that candy cane piece isn't really supported anywhere. Its pretty short
and solid to the touch, but vibration might cause a issue. Since the bottom
floor of the baggage area goes over the top, there's really nothing permanent
I can attach it to short of making a bracket of some kind (yuck).
>>>
>>> So what do you guys think?
>>>
>>> Matt Dralle
>>> RV-8 #82880 N844RV (res)
>>>
>>>
>>>
>>>
>>
>> Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
>> 925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
>> http://www.matronics.com/ WWW | Featuring Products For Aircraft
>>
>>
>>
>> ------------------------------------------------------------------------
>>
--
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No trees were destroyed in the sending of this message. We do concede, however,
that a significant number of electrons may have been temporarily inconvenienced.
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Message 7
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| Subject: | Re: Question On Low-Pressure Brake Lines... |
Can you take one of those right angle fittings (like the one on the top
on the left hand master) and turn it 90 deg so the mast is to the side?
Mike
> Thanks for the tip, Mike. I actually did try these babies out. The problem
on the RV-8, though, is that with the adjustable rudder pedals at full "tall-person",
the mini-reservoir doesn't clear the firewall when the brakes are applied.
Here's a picture with one on the right master cylinder and full right rudder
applied, but no brake action. Notice that there is only about 1/16" of clearance
to the firewall. I wish that Grove had used a different fitting design
instead of just slapping a NPT M-M on the side. Its way too long. Anybody
know of a similar fitting that is about half as long?
>
>
>>
>>
>>
>> ------------------------------------------------------------------------
>>
Message 8
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| Subject: | Re: Another Brake Question |
Ah hah...thanks Charlie...I'll do that.
Paul Besing
________________________________
From: Charles Kuss <chaskuss@yahoo.com>
Sent: Sunday, November 2, 2008 8:46:58 AM
Subject: Re: RV-List: Another Brake Question
Paul,
You are forgetting one thing about that Harbor Freight brake bleeder tool. It's
designed for automotive gylcol based fluids, which means that it's O-rings and
seals are made from EDPM, not Nitrile or Viton. You'll need to flush out the
aircraft mineral oil based brake fluid immediately after use, if you expect to
use the thing more than a few times.
Charlie Kuss
snipped
> BTW, harbor freight sells a really cool one man vacuum
> bleed kit that you hook air up to, and it has a nice large
> reservoir for collecting the brake fluid...plus a fluid
> supply bottle with a ball valve...nifty...$29.
>
> Paul Besing
>
>
>
>
>
> ________________________________
> From: Sam Buchanan <sbuc@hiwaay.net>
> To: rv-list@matronics.com
> Sent: Saturday, November 1, 2008 3:12:01 PM
> Subject: Re: RV-List: Another Brake Question
>
> <sbuc@hiwaay.net>
>
> linn Walters wrote:
> >
> > Yeah, but it's a PITA to change the pads. I would
> find out what's
> > going on and fix it. You'd hate to have a brake
> go out when you
> > really need it. And the cost may be more than $15
> then! ;-)
>
>
> 'Bout thirty minutes at most on an RV. Pads can removed
> from the wheel
> assembly in less time than it takes to remove the wheel
> pant.
>
> Sam Buchanan
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