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  #1  
Old 08-01-2017, 06:33 PM
Ron B. Ron B. is offline
 
Join Date: Nov 2007
Location: Yarmouth, Nova Scotia
Posts: 2,097
Default Exhaust heat

On my way home from OSH I noticed that the back of my legs were getting warm so I felt around and noticed the control stick enclosure was warm to the touch. The tunnel is cool, fuel valve is cool , just the control stick closure under where the boot is attached. I have Flightline's carpeting so perhaps the floor where your feet sit is hot but insulated by the carpet. I'm also noticing a tan color on the white steps on the lower 2/3 portion. My feet are not getting hot so I'm fairly sure it's not my heat boxes leaking.
I'm wandering if I need a small deflector on my exhaust pipe?
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  #2  
Old 08-01-2017, 08:25 PM
KeithB KeithB is offline
 
Join Date: Mar 2014
Location: Granbury, TX
Posts: 93
Default

Ron, do you have an IO390 with the Vans exhaust through the tunnel, or a Superior XP400 with 2 pipes, and if so, in the tunnel or below the floor boards like an RV 7?

I have a Superior with pipes pointed below the floor boards. I haven't noticed heat, but have some exhaust drumming, particularly at high power settings, and was wondering about downward diverters.
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  #3  
Old 08-02-2017, 05:28 AM
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snopercod snopercod is offline
 
Join Date: Aug 2016
Location: Asheville, NC
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Quote:
Originally Posted by KeithB View Post
...was wondering about downward diverters.
Not an RV, but on my plane, those diverters really lowered the noise in the cockpit. As a side benefit, the belly of the plane isn't dirty all the time, either. I recommend the "down-turns".
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  #4  
Old 08-02-2017, 07:52 AM
Ron B. Ron B. is offline
 
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Location: Yarmouth, Nova Scotia
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I have the standard Van's set up. I0-390 and Van's exhaust. Talking about Van's exhaust, I have two exhaust pipes that touch each other just under the # 4 cylinder. I separated them but they are now touching again. I'm wandering if there is a way to keep them from touching?
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  #5  
Old 08-02-2017, 07:41 PM
vanduyn vanduyn is offline
 
Join Date: Aug 2006
Posts: 23
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I also have the same problem with #2 / #4 exhaust wanting to touch each other. My aircraft is a 14A IO-390 with vans exhaust also. What I did is make an additional exhaust hanger, mounting it further forward and attaching it to the engine mount via an adel clamp. So far so good. By the way I talked to Gus at OSH and he said he had not heard of this issue.

One other issue, I have a exhaust leak at the slip joint off of #2 cylinder. Has any one else experienced this on their 14 vans exhaust.
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  #6  
Old 08-03-2017, 04:40 AM
Ron B. Ron B. is offline
 
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Location: Yarmouth, Nova Scotia
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I looked for a place to mount a hanger but nothing good in my location. Any chance you have a photo?
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