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914 / mufler / end pipe

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stabelvej9(at)gmail.com
Guest

Posted: Tue Feb 24, 2015 8:13 am Post subject: 914 / mufler / end pipe

Hi



Now I have been flying 750 hrs. with my exhaust end pipe clamped to the mufler with two ugly big half-rusty clamps…

Any reason why I should not TIG-weld that end pipe direct on the mufler?

No problem getting the under cowling on and of with the system assembled.



Regards Gert



Gert Dalgaard

OY-GDS / Mono / 914 / 750 hrs

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paul.the.aviator(at)gmail
Guest

Posted: Tue Feb 24, 2015 11:49 am Post subject: 914 / mufler / end pipe

Hi Gert,



I had a problem with the tail pipe coming loose no matter how tight I made

the clamp. I have a TIG welder but I didn't want to weld on the aircraft due

to the high frequency voltage that is part of the welding current. My

concern was that it could damage my avionics.



I solved the problem by drilling a small hole in the pipe under where the

camp goes and putting a stainless steel pin. The pin had flange on it to

keep it in place.



If you do want to weld it my recommendation would be to remove the muffler,

which is a bit of pain to do.



Hope this helps - Paul

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rparigoris

Joined: 24 Nov 2009
Posts: 796

Posted: Tue Feb 24, 2015 12:49 pm Post subject: Re: 914 / mufler / end pipe

Hi Gert



My 914 exhaust is made out of 309 Stainless Steel. I plan on welding on a Stainless Steel Bung to mount an O2 sensor. I purchased some 308L Stainless Rod. I think it was from either McMaster, ACS or Wicks.



I verified that 308L is OK to use on 309 Stainless.



Good Luck.

Ron P.

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budyerly(at)msn.com
Guest

Posted: Tue Feb 24, 2015 8:02 pm Post subject: 914 / mufler / end pipe

Gert,

 You are a patient man.

 

 

 I have done it many ways.  The Trigear is hard to cowl up without the clamp.  The mono is easier.

 I welded mine on once I was comfortable with the length and angle.  I don't like to have loose stuff.  My tailpipe is short, so I have exhaust stains.

 

 

 If you like a long pipe that is removable, the best way to assure your pipe doesn't fall into a schoolyard, is to pin it.  We use an 1/8" hole through the overlap area where the clamp rests.  We tack weld a pin to the clamp like on a Continental.  One  can also use a screw and clamp over it.  We use a small head screw and dimple the wide band clamp for the screw head.

 

 

 Then we weld a loop ( a U of welding rod ) on the tail pipe and muffler stub.  Then safety wire the loops.  Its like belts and suspenders, but we are annal.  

 

 

 Regards,

 Bud Yerly

 

 

 

 

 Sent from my Verizon Wireless 4G LTE DROID

 

 On Feb 24, 2015 11:18 AM, =?ISO-8859-1?Q?Gert_Dalgaard_S=F8rensen?= <stabelvej9(at)gmail.com> wrote: 

  --> Europa-List message posted by: =?windows-1252?Q?Gert_Dalgaard_S=F8rensen?= <stabelvej9(at)gmail.com>

 

 Hi

 

 Now I have been flying 750 hrs. with my exhaust end pipe clamped to the mufler with two ugly big half-rusty clampsâ€¦

 Any reason why I should not TIG-weld that end pipe direct on the mufler?

 No problem getting the under cowling on and of with the system assembled.

 

 Regards Gert

 

 Gert Dalgaard

 OY-GDS / Mono / 914 / 750 hrs 

 

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