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Oil return hose / 914

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lgds(at)post6.tele.dk
Guest

Posted: Thu Nov 30, 2006 11:17 am Post subject: Oil return hose / 914

HiI have had an quite unpleasant experience while doing my annual.

The last month or so I have noticed a ( - very week) smell of "hot oil" sometimes during take of...... and funny enough only during take of.

Could not localize the reason until now when disassembling the different parts under the cowling for the 100 hours/annual check.

It looks like the oil - return - hose have been more than hot under the asbestos - fire - sleeve, and therefore have changed to a kind of "glasslike".

I am sure it would have collapsed within the next hours.

The oil - line have been routed according to Rotax installation manual and instructions from Europa - app. 90 degree to the stb. side and up alongside the intake manifold to the top of the oil-tank

The problem is on that piece of the hose that runs between the turbo unit and the bottom of the engine.

You better put that oil-line on your check - list if you fly behind a 914' ..

FYI - I have never seen higher oil-temp's than 110C (app. 230F) according to the log in my FlyDat.

Have other had similar experiences?



Gert

OY-GDS 



NB    - remember to make a notice about Endelave '07 in your agenda   



 



 [quote][b]

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Dave Miller

Joined: 10 Jan 2006
Posts: 51

Posted: Thu Nov 30, 2006 11:44 am Post subject: Oil return hose / 914

Gert, 

 

A friend had the same problem with his 914 installation. The line had "carbonized" and was quite brittle. 

As far as I remember, he replaced the oil lines with Teflon lines from Aircraft Spruce. 

 

Dave 912S trigear  

 

 

    Gert Dalgaard <lgds(at)post6.tele.dk> 

Sent by: owner-europa-list-server(at)matronics.com 

11/30/2006 02:16 PM 

Please respond to europa-list 

          

        To:        europa-list(at)matronics.com 

        cc:         

        Subject:        Oil return hose / 914 

 

 

Hi 

I have had an quite unpleasant experience while doing my annual. 

The last month or so I have noticed a ( - very week) smell of "hot oil" sometimes during take of..... and funny enough only during take of. 

Could not localize the reason until now when disassembling the different parts under the cowling for the 100 hours/annual check. 

It looks like the oil - return - hose have been more than hot under the asbestos - fire - sleeve, and therefore have changed to a kind of "glasslike". 

I am sure it would have collapsed within the next hours. 

The oil - line have been routed according to Rotax installation manual and instructions from Europa - app. 90 degree to the stb. side and up alongside the intake manifold to the top of the oil-tank 

The problem is on that piece of the hose that runs between the turbo unit and the bottom of the engine. 

You better put that oil-line on your check - list if you fly behind a 914' ... 

FYI - I have never seen higher oil-temp's than 110C (app. 230F) according to the log in my FlyDat. 

Have other had similar experiences? 

 

Gert 

[url=Times New Roman]OY-GDS [/url] 

 

NB    - remember to make a notice about [url=Times New Roman]Endelave '07[/url] in your agenda    

 

 

 

[b]

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ptag.dev(at)tiscali.co.uk
Guest

Posted: Thu Nov 30, 2006 2:26 pm Post subject: Oil return hose / 914

Hi! Gert  

Whilst I’m not a 914 “driver” YET…. I seem to remember that there has been an issue over this problem that involved re-routing the pipe /changing the direction of the “banjo” fitting to take the hose away from either the manifold or muffler heat?  

I’m all ears for messages from those who have been previously informed.  

Regards  

Bob Harrison.  

   

   

-----Original Message-----

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

 Sent: 30 November 2006 19:17

 To: europa-list(at)matronics.com

 Subject: Oil return hose / 914  

   

Hi    

I have had an quite unpleasant experience while doing my annual.  

    

The last month or so I have noticed a ( - very week) smell of "hot oil" sometimes during take of...... and funny enough only during take of.  

    

Could not localize the reason until now when disassembling the different parts under the cowling for the 100 hours/annual check.  

    

It looks like the oil - return - hose have been more than hot under the asbestos - fire - sleeve, and therefore have changed to a kind of "glasslike".  

    

I am sure it would have collapsed within the next hours.  

    

The oil - line have been routed according to Rotax installation manual and instructions from Europa - app. 90 degree to the stb. side and up alongside the intake manifold to the top of the oil-tank  

    

The problem is on that piece of the hose that runs between the turbo unit and the bottom of the engine.  

    

You better put that oil-line on your check - list if you fly behind a 914' ..  

    

FYI - I have never seen higher oil-temp's than 110C (app. 230F) according to the log in my FlyDat.  

    

Have other had similar experiences?  

    

   

    

Gert  

    

OY-GDS   

    

   

    

NB    - remember to make a notice about Endelave '07 in your agenda     

  

     

 <![if !supportLineBreakNewLine]> <![endif]>  

  

   [quote]  [b]

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garrys(at)tampabay.rr.com
Guest

Posted: Thu Nov 30, 2006 3:32 pm Post subject: Oil return hose / 914

Actually, I was one of the earliest 914 Europa  drivers in the US.......first flight being in 1999.  With about 50 hours of  flight I had the oil return line "carbonize", and burst in flight.   Fortunately, no fire but lots of smoke.  The oil return line provided by  Europa (or perhaps it was Rotax), was junk.  I replaced it with a stainless  steel braided oil line, covered the line with firesleave, and further wrapped a  stainless steel jacket around the line where it comes closest to the exhaust  system.  400 hours later, no problem.

  

 A better solution however, is to turn the banjo  fitting at the bottom of the engine so as to face forward.  Then route the  oil return line forward to the front of the engine and then backward to the oil  tank, keeping the line far away from any exhaust components.  A "stock" oil  return line, fitted per instructions WILL burn up.  Please take this advice  seriously.

  

 Garry Stout

 N4220S  A060 Trigear

  

 [quote]   ---

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davidjoyce(at)doctors.org
Guest

Posted: Fri Dec 01, 2006 2:04 am Post subject: Oil return hose / 914

I wouldn't want to dispute the seriousness of Garry's oil pipe failure, but

I ran my 914 with Europa supplied original oil pipe in their fire sleeve

according to their route, aiming to give maximum clearance from any hot

bits. It clearly became hard and shiny at the front end within few hours

flying but remained that way without problem until I changed it at 4

yrs/400+hrs. The replacement (Europa/Rotax standard) with a slightly thicker

fire sleeve is going well 100hrs later. Regards, David Joyce, G-XSDJ

---

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