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Brake tube

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sidsel.svein(at)oslo.onli
Guest

Posted: Sun Sep 17, 2006 9:05 am Post subject: Brake tube

Three days ago one of the black nylon brake tubes  from the finger brake master cylinder to the parking brake valve popped off when  lining up for take-off.  I fixed it with a spare brass fitting  with the white nylon press ring inside, and taxi tested it before taking  off.  Today, the exact same thing happened during run-up, so no  flight.

  

 -  Any suggestion as to why this happended the  first/the second time?  Must the tube be replaced if popping off (which I  did not do but plan to do now)?  Did I tighten it too much/too little (not  possible to tighten more than I did the last time)?  Perhaps I did not  manage to push the tube fully in over the brass tube in the fitting on the  valve?

  

 - While I am waiting for some more brass/nylon  fittings from Europa, I wonder if anyone has found a better nylon tubing/press  fitting that go onto the connectors we have? The black nylon tube  looks so slippery that it is almost a wonder that more of them have not popped  off.

  

 (yes, I know I should have replaced it all with  aluminum tubing during construction, but that is not my question!)   

  

 Best regards,

 Svein

 LN-SKJ

   [quote][b]

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topglock(at)cox.net
Guest

Posted: Sun Sep 17, 2006 10:29 am Post subject: Brake tube

Svein,

 

 If memory serves, the Europa supplied tubing is 6mm and the fittings are 1/4".  A small difference, however enough to cause the problem you're experiencing.  I used the 1/4" nylo-flow tubing from AC Spruce, with brass fittings, instead of the nylon ones, and have had no evidence of leakage in over 200 hours...

 

 Jeff

 Baby Blue

 

 Sidsel & Svein Johnsen wrote: [quote]            Three days ago one of the black nylon brake tubes from the finger brake master cylinder to the parking brake valve popped off when lining up for take-off.  I fixed it with a spare brass fitting with the white nylon press ring inside, and taxi tested it before taking off.  Today, the exact same thing happened during run-up, so no flight.

    

   -  Any suggestion as to why this happended the first/the second time?  Must the tube be replaced if popping off (which I did not do but plan to do now)?  Did I tighten it too much/too little (not possible to tighten more than I did the last time)?  Perhaps I did not manage to push the tube fully in over the brass tube in the fitting on the valve?

    

   - While I am waiting for some more brass/nylon fittings from Europa, I wonder if anyone has found a better nylon tubing/press fitting that go onto the connectors we have? The black nylon tube looks so slippery that it is almost a wonder that more of them have not popped off.

    

   (yes, I know I should have replaced it all with aluminum tubing during construction, but that is not my question!)  

    

   Best regards,

   Svein

   LN-SKJ

    	  Quote: 	
		  





  	
 [b]

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steven.pitt2(at)ntlworld.
Guest

Posted: Sun Sep 17, 2006 11:57 am Post subject: Brake tube

Svein

 Ihad exactly the same problem when doing my first taxying test but both  went one after the other. Fortunately the grass was long enough to stop  us.

 Jeff is correct re the different sizes and I have used the brass/brass  screw ons from ACS with good success during the recent flight testing.

 Steve Pitt G-SMDH 

   [quote][b]

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jodel(at)nildram.co.uk
Guest

Posted: Sun Sep 17, 2006 12:30 pm Post subject: Brake tube

I have also had a pipe blow off.  I have noticed three different types of securing nut supplied by Europa.  There is the Black plastic insert. A white one and also a brass (coloured) metal one.  

   

On a related subject, does any one know what the factory is now using to replace the Jamar master cylinder unit on the finger brakes?  

   

Simon  

         

  

From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Steven Pitt

 Sent: 17 September 2006 20:52

 To: europa-list(at)matronics.com

 Subject: Re: Brake tube  

  

     

Svein  

    

Ihad exactly the same problem when doing my first taxying test but both went one after the other. Fortunately the grass was long enough to stop us.  

    

Jeff is correct re the different sizes and I have used the brass/brass screw ons from ACS with good success during the recent flight testing.  

    

Steve Pitt G-SMDH   

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        [quote][b]

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Brian Davies

Joined: 10 Jan 2006
Posts: 124
Location: uk

Posted: Sun Sep 17, 2006 11:39 pm Post subject: Brake tube

Simon,

 The factory are now supplying two Matco master  cylinders which are compatable with the wheel cylinders and use aircraft spec.  hydraulic fluid.  Hopefully, this will solve the seal problems.  The  tubing now being supplied looks like white nylon.

  

 Brian



   From: owner-europa-list-server(at)matronics.com  [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Simon  Smith

Sent: 17 September 2006 21:30

To:  europa-list(at)matronics.com

Subject: RE: Brake  tube

 

  

I have also had a pipe  blow off.  I have noticed three different types of securing nut supplied by  Europa.  There is the Black plastic insert. A white one and also a brass  (coloured) metal one. 

  

On a related subject,  does any one know what the factory is now using to replace the Jamar master  cylinder unit on the finger brakes? 

  

Simon 

     

 

From:  owner-europa-list-server(at)matronics.com  [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Steven Pitt

Sent: 17 September 2006 20:52

To: europa-list(at)matronics.com

Subject: Re: Brake  tube

 

   

Svein

  

Ihad exactly the same problem when doing my first  taxying test but both went one after the other. Fortunately the grass was long  enough to stop us.

  

Jeff is correct re the different sizes and I have used  the brass/brass screw ons from ACS with good success during the recent flight  testing.

  

Steve Pitt  G-SMDH 

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 15/09/2006

     [quote][b]

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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sidsel.svein(at)oslo.onli
Guest

Posted: Mon Sep 18, 2006 9:27 am Post subject: Brake tube

Thank you to those who responded with good  feedback.  I have now ordered new securing nuts with brass insert from  Europa, and will replace the nylon tube length between main cylinder and the  park brake valve (not sufficient slack on this short distance to only cut off  the old end to ensure previously unpressed material for the new  nuts).

  

 Best regards,

 Svein

  

 do not archive

   [quote][b]

- The Matronics Europa-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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