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Rubberhoses, repacement?

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rehn(at)rockisland.com
Guest

Posted: Tue Apr 30, 2013 7:57 am Post subject: Rubberhoses, repacement?

I am a little past the 5 year plus time for rubber replacement. I replaced all the fuel lines about 6 years ago with high pressure auto fuel injection hose. Stuff still looks good, but? Any advice here? Also replaced coolant hoses with silicone about same time. The large radiator hoses were replaced with rubber. Would like to get silicone for the radiator as well. Source?  

Thanks for help.  

Jerry Rehn  

Mono XS 914  

12 years running  

        [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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pjlevi(at)gmail.com
Guest

Posted: Tue Apr 30, 2013 8:31 am Post subject: Rubberhoses, repacement?

Jerry

 

  I recommend you contact Stefan Ingemarsson in Sweden.  He advertises in Europa Flyer Magazine (page 14 of March 2013 issue).  His e-mail address is stefan.ingemarsson(at)gmail.com (stefan.ingemarsson(at)gmail.com).  There are pictures of the hoses in the magazine advertisement.

   

I recently ordered radiator blue silicon hoses from him and they arrived within 2 days of order and payment by PayPal and he replied very promptly to my e-mail enquiry re prices and delivery.

   

Philip

G-BWWB, Europa Monowheel Classic, Old Warden

     

Philip J. Levi, FCA, CTA(Fellow), TEP, MRIN, ARAeS

  Chartered Accountant, Chartered Tax Advisor.

 

  E-mail:                                                  pjlevi(at)gmail.com (pjlevi(at)gmail.com) 

  







 



On 30 April 2013 16:56, Jerry Rehn <rehn(at)rockisland.com (rehn(at)rockisland.com)> wrote:

[quote]               

I am a little past the 5 year plus time for rubber replacement. I replaced all the fuel lines about 6 years ago with high pressure auto fuel injection hose. Stuff still looks good, but? Any advice here? Also replaced coolant hoses with silicone about same time. The large radiator hoses were replaced with rubber. Would like to get silicone for the radiator as well. Source?  

Thanks for help.  

Jerry Rehn  

Mono XS 914  

12 years running  

         	  Quote: 	
		  



arget="_blank">http://www.matronics.com/Navigator?Europa-List

tp://forums.matronics.com

_blank">http://www.matronics.com/contribution



	


[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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budyerly(at)msn.com
Guest

Posted: Tue Apr 30, 2013 7:28 pm Post subject: Rubberhoses, repacement?

<?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]-->  Jerry,

 A UK supplier (at a very reasonable price) is now supplying silicone hoses  to Europa for the XS.  I have worked with both the Swedish company's  product (a bit costly) which is now popular, and our new hoses.  Call  or email Karen.  I think I just bought them out of their last stock.   More on the way very soon.

  

 As far as on the engine, Rotax wants an arm and a leg for their heater  hose.  In the US I use either manufacturer recommended or better  hose.  I am afraid that even as a certified Rotax repair type, I prefer to  buy 5/8 inch silicone hose from my supplier at Amazon Hose.  It is great  stuff and only $6 a foot rather than $20 per foot and frankly it is just rubber  heater hose..  Don't just buy any hose.  I tested the Amazon hose  stuff and it is good over 300F, under pressure.  I even took a torch with a  1500 degree tip to it and it just glows, the outer skin turns to white ash  and doesn't burn.  It is as thick as the rubber hose (rather than the real  thin style silicone that is also available) so you can use your existing  clamps.  The Rotax hose burns with gusto on direct flame contact.  I  still use heat sleeve by thermo king to protect my hose from potential exhaust  leaks which will cause a burn through in minutes with the rubber hose even with  heat shielding.

  

 I can't find 11 mm hose for the crossover tube so I do buy that from  Rotax.  The 1/2 inch vacuum line or Aeroquip 332 is a little too loose, and  vacuum silicone hose of 3/8 or 7/16 is just too tight and won't pop off.   So I pay $20 for a foot of it.

 The same for the 4 mm line for the carbs, fuel pressure regulator  etc.  Only because I can reuse the clamps.  If you want, you can find  4mm vacuum / suction line but you will need new clamps as it will be thicker  than the 7mm OD Rotax line.

  

 At 6 years I think you should look at your lower ignition wires also.   Mine were baked.  Especially between the cylinders.

  

 As for the the fuel hose.  The tried and true method is to check your  clamps.  If you note your clamps are loose and the hose has shrunk, has  cracks on the end not under the clamp or has taken a set (gotten hard) take  about 4-8 hours and change it all out.  The R-7 hose from six years ago has  been replaced with better hose.  Available now is Goodyear EP SAE R-9  hose,  Gates has an R-14 hose designed for carburation up to 50 psi and is  cheaper than the fuel injection hose by about half.  Both are impervious to  the smell of auto gas, are lined, and reinforced internally.  The  Gates is also quite flexible.  However, the new silicone like inner liner  on each brand when pushed on really sticks.  So, pre-lube it and plan  well.  

 NAPA auto is a good place to look.  Just make sure you get the  carbureted hose, not CARB (California Air Resources Board) fuel injection hose  which is quite stiff...  My NAPA store locally carries both  types.

  

 I pull my fuel tank bosses off and flush my tank.  Replace the 1 inch  hose with marine fuel line or exhaust line (Blue Stripe).

  

 I also check my cobra neck (that rubber 55 degree elbow) for  hardness.  If it feels like solid plastic, it goes.  I normally  manufacture a 55 degree aluminum 2 inch elbow and use two inch marine exhaust  hose to clamp it into my inlet.

  

 Finally, the site gauge and vent lines need a good looking at also.   They get quite brittle as we use cheap hose, and rarely get changed as we figure  they are only vent lines and don't give a second thought to them.  Don't  buy cheap here either.  Not all polyurethane lines are created equal.   Europa has the good European hose that doesn't crack or get brittle.   Amazon hose has crap for urethane normally.  My store has the good  stuff.  We are using tygon in one plane to try it out.  It now comes  in many colors and is resistant to getting dark with age and is supposed to be  100% safe with ethanol, autogas, or aviation gas.

  

  

 Regards,

 Bud Yerly

 Tech Support.

  

  

 [quote]   ---

- 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:

http://www.matronics.com/Navigator?Europa-List

rehn(at)rockisland.com
Guest

Posted: Thu May 02, 2013 5:03 pm Post subject: Rubberhoses, repacement?

Thanks for help, I am presently working my way through all this. Looking forward to flying soon.

Regards

Jerry



Sent from my iPad



On Apr 30, 2013, at 8:27 PM, "Bud Yerly" <budyerly(at)msn.com (budyerly(at)msn.com)> wrote:



[quote]    (at)page Section1 {size: 8.5in 11.0in; margin: 1.0in 1.25in 1.0in 1.25in; } P.MsoNormal { 	FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman"; MARGIN: 0in 0in 0pt } LI.MsoNormal { 	FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman"; MARGIN: 0in 0in 0pt } DIV.MsoNormal { 	FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman"; MARGIN: 0in 0in 0pt } A:link { 	COLOR: blue; TEXT-DECORATION: underline } SPAN.MsoHyperlink { 	COLOR: blue; TEXT-DECORATION: underline } A:visited { 	COLOR: purple; TEXT-DECORATION: underline } SPAN.MsoHyperlinkFollowed { 	COLOR: purple; TEXT-DECORATION: underline } SPAN.EmailStyle17 { 	FONT-FAMILY: Arial; COLOR: windowtext; mso-style-type: personal-compose } DIV.Section1 { 	page: Section1 }   <?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]-->  Jerry,

 A UK supplier (at a very reasonable price) is now supplying silicone hoses  to Europa for the XS.  I have worked with both the Swedish company's  product (a bit costly) which is now popular, and our new hoses.  Call  or email Karen.  I think I just bought them out of their last stock.   More on the way very soon.

  

 As far as on the engine, Rotax wants an arm and a leg for their heater  hose.  In the US I use either manufacturer recommended or better  hose.  I am afraid that even as a certified Rotax repair type, I prefer to  buy 5/8 inch silicone hose from my supplier at Amazon Hose.  It is great  stuff and only $6 a foot rather than $20 per foot and frankly it is just rubber  heater hose..  Don't just buy any hose.  I tested the Amazon hose  stuff and it is good over 300F, under pressure.  I even took a torch with a  1500 degree tip to it and it just glows, the outer skin turns to white ash  and doesn't burn.  It is as thick as the rubber hose (rather than the real  thin style silicone that is also available) so you can use your existing  clamps.  The Rotax hose burns with gusto on direct flame contact.  I  still use heat sleeve by thermo king to protect my hose from potential exhaust  leaks which will cause a burn through in minutes with the rubber hose even with  heat shielding.

  

 I can't find 11 mm hose for the crossover tube so I do buy that from  Rotax.  The 1/2 inch vacuum line or Aeroquip 332 is a little too loose, and  vacuum silicone hose of 3/8 or 7/16 is just too tight and won't pop off.   So I pay $20 for a foot of it.

 The same for the 4 mm line for the carbs, fuel pressure regulator  etc.  Only because I can reuse the clamps.  If you want, you can find  4mm vacuum / suction line but you will need new clamps as it will be thicker  than the 7mm OD Rotax line.

  

 At 6 years I think you should look at your lower ignition wires also.   Mine were baked.  Especially between the cylinders.

  

 As for the the fuel hose.  The tried and true method is to check your  clamps.  If you note your clamps are loose and the hose has shrunk, has  cracks on the end not under the clamp or has taken a set (gotten hard) take  about 4-8 hours and change it all out.  The R-7 hose from six years ago has  been replaced with better hose.  Available now is Goodyear EP SAE R-9  hose,  Gates has an R-14 hose designed for carburation up to 50 psi and is  cheaper than the fuel injection hose by about half.  Both are impervious to  the smell of auto gas, are lined, and reinforced internally.  The  Gates is also quite flexible.  However, the new silicone like inner liner  on each brand when pushed on really sticks.  So, pre-lube it and plan  well.  

 NAPA auto is a good place to look.  Just make sure you get the  carbureted hose, not CARB (California Air Resources Board) fuel injection hose  which is quite stiff...  My NAPA store locally carries both  types.

  

 I pull my fuel tank bosses off and flush my tank.  Replace the 1 inch  hose with marine fuel line or exhaust line (Blue Stripe).

  

 I also check my cobra neck (that rubber 55 degree elbow) for  hardness.  If it feels like solid plastic, it goes.  I normally  manufacture a 55 degree aluminum 2 inch elbow and use two inch marine exhaust  hose to clamp it into my inlet.

  

 Finally, the site gauge and vent lines need a good looking at also.   They get quite brittle as we use cheap hose, and rarely get changed as we figure  they are only vent lines and don't give a second thought to them.  Don't  buy cheap here either.  Not all polyurethane lines are created equal.   Europa has the good European hose that doesn't crack or get brittle.   Amazon hose has crap for urethane normally.  My store has the good  stuff.  We are using tygon in one plane to try it out.  It now comes  in many colors and is resistant to getting dark with age and is supposed to be  100% safe with ethanol, autogas, or aviation gas.

  

  

 Regards,

 Bud Yerly

 Tech Support.

  

  

 [quote]   ---

- 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:

http://www.matronics.com/Navigator?Europa-List

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