Re: Europa-List: Exhaust Pipe Security

[Bud Yerly <budyerly@msn.com>]

Jim,
Sorry to be absent from the list but these 60 hour weeks are making 
great progress, however I have had to give up the time of getting into 
these discussions:

I too have had enough of the clamping problems.

I now weld a small loop of welding rod onto the tail pipe just outboard 
or the various clamps that are on each model engine/year group of 
engine/tail pipe combination.  The loop is safetied to the engine frame 
or support for the muffler.   This is just a derivation of a more 
permanent type fix rather than Andy's sheet metal screw.  I fear the 
screw will back out so I weld on a loop. 

I have tried an experiment as the clamping of my tail pipe got old as it 
got loose, every other flight, so I had my tail pipe welded on as an 
experiment three years ago.  No problems after the total 300 hours.  I 
have a slightly larger exhaust pipe exit hole, and my expert welder made 
sure there was not heat creep and potential cracking later on at the TIG 
weld point.  The trigear leg hole in the bottom of the cowl is a bit 
larger and arced to clear the leg for easy installation of the cowl...  
On the mono this is not necessary.

Regards to Heather,
Bud


  ----- Original Message ----- 
  From: h&amp;jeuropa<mailto:butcher43@att.net> 
  To: europa-list@matronics.com<mailto:europa-list@matronics.com> 
  Sent: Tuesday, August 02, 2011 9:16 AM
  Subject: Europa-List: Exhaust Pipe Security


<butcher43@att.net<mailto:butcher43@att.net>>

  On our 914 powered XS, the exhaust pipe that comes thru the engine 
cowl gets loose.  We once actually had it fall off, fortunately just 
prior to takeoff!  We've tried hi temp nuts, safety wiring the nut and 
made a longer nut from steel rod which is safety wired, but still the 
pipe gets loose after a few hours. 

  Yesterday, we noticed an old Tech Talk article from Dec 2002 where 
Andy suggests drilling thru the stub of the muffler and the tailpipe and 
inserting a self tapping screw.  Then you are to arrange the screw to be 
under the circular clamp.  Has anyone done this and does it work?


  Jim & Heather
  N241BW


  Read this topic online here:


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