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vetterman exhaust, RV-6A with 0-360

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sarg314(at)comcast.net
Guest

Posted: Sun Jun 25, 2006 2:31 pm Post subject: vetterman exhaust, RV-6A with 0-360

I'm trying to get my exhaust to fit with the cowl - clearance between 

heat muff (on the right side of plane) and the lower cowl is an issue.  

When I get the pipes twisted around so that they



1) give me the best clearance between heat muff & cowl and ehxhaust pipe 

& engine mount



2) exit the cowl scoop pretty well parallel to the long axis of the 

plane as seen from looking up laying underneath it,



the right one is angled down a lot more than the left one.  Left one 

(which has lots of clearance) is about 25 deg. rel. to bottom of 

fuselage, right one is about 40 deg.   Is this normal? 



The end of the right pipe sticks down about 2.5" below the ram scoop 

while the left one stick down about 1.5".  My recollection is that RV's 

usually have some assymmetry in this respect.

Or, have I just got it adjusted wrong?

-

Tom Sargent

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FLYaDIVE(at)aol.com
Guest

Posted: Sun Jun 25, 2006 2:46 pm Post subject: vetterman exhaust, RV-6A with 0-360

In a message dated 6/25/06 6:33:24 PM Eastern Daylight Time, 

sarg314(at)comcast.net writes:



 	  Quote: 	
		   2) exit the cowl scoop pretty well parallel to the long axis of the 

  plane as seen from looking up laying underneath it,

  

  the right one is angled down a lot more than the left one.  Left one 

  (which has lots of clearance) is about 25 deg. rel. to bottom of 

  fuselage, right one is about 40 deg.   Is this normal? 

  

  The end of the right pipe sticks down about 2.5" below the ram scoop 

  while the left one stick down about 1.5".  My recollection is that RV's 

  usually have some assymmetry in this respect.

  Or, have I just got it adjusted wrong?

  -

  Tom Sargent

========================
	


Tom:



You are correct.  I have the same problem ... right one is lower than the 

left.  I also have been fighting CO in the cabin.  I tried what I believe is very 

thing ... Until I came up with a solution.  I added extensions with a 

downward bend and a baloney cut to the exhaust.  This reduced the CO to ZERO.



But, the right side is still lower than the left.



Barry

"Chop'd Liver"

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sarg314(at)comcast.net
Guest

Posted: Sun Jun 25, 2006 3:19 pm Post subject: vetterman exhaust, RV-6A with 0-360

FLYaDIVE(at)aol.com wrote:



 	  Quote: 	
		  



In a message dated 6/25/06 6:33:24 PM Eastern Daylight Time, 

sarg314(at)comcast.net writes:



  



>2) exit the cowl scoop pretty well parallel to the long axis of the 

> plane as seen from looking up laying underneath it,

> 

> the right one is angled down a lot more than the left one.  Left one 

> (which has lots of clearance) is about 25 deg. rel. to bottom of 

> fuselage, right one is about 40 deg.   Is this normal? 

> 

> The end of the right pipe sticks down about 2.5" below the ram scoop 

> while the left one stick down about 1.5".  My recollection is that RV's 

> usually have some assymmetry in this respect.

> Or, have I just got it adjusted wrong?

> -

> Tom Sargent

>    

>

========================

Tom:



You are correct.  I have the same problem ... right one is lower than the 

left.  I also have been fighting CO in the cabin.  I tried what I believe is very 

thing ... Until I came up with a solution.  I added extensions with a 

downward bend and a baloney cut to the exhaust.  This reduced the CO to ZERO.



But, the right side is still lower than the left.



Barry

"Chop'd Liver"

  



Barry:
	


    Interesting. Which way was the cut? Was it horizontal or vertical?

--

Tom S.

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FLYaDIVE(at)aol.com
Guest

Posted: Sun Jun 25, 2006 3:43 pm Post subject: vetterman exhaust, RV-6A with 0-360

In a message dated 6/25/06 7:21:12 PM Eastern Daylight Time, 

sarg314(at)comcast.net writes:



 	  Quote: 	
		   Barry:

      Interesting. Which way was the cut? Was it horizontal or vertical?

  --

  Tom S.

===========================
	


Tom:



HORIZONTAL and parallel to the ground in a S&L flight ... I'm an RV-6  



I really had to get the exhaust down and into the air-stream.  It was being 

sucked in at points I could not find.  I did seal off the flap area, wing root, 

and added a scupper in the tail.  NO great improvement.  But when I added the 

extensions .. WOW  Z E R O  CO!



Barry

"Chop'd Liver"

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c.ennis(at)insightbb.com
Guest

Posted: Mon Jun 26, 2006 4:58 pm Post subject: vetterman exhaust, RV-6A with 0-360

Tom,

 I used piccalo pipes, extends the exhaust and makes the exhaust "song' a 

bit more tolerable.

  Charlie,

 RV-6A

---

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