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  #1  
Old 03-16-2022, 04:13 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 5,100
Default Vent DL-03 SCAT tube flange, OP-40-4
RV7A, IO-360-M1B
I'm working on baffles. Specifically #3.
I notice a Vent DL-03 SCAT tube flange on OP-40-4. Photo.
My gut tells me it's a carb heat scat tube vent. Since my build is an IO-360-M1B, injected, I planned to leave it off. I've become very careful lately and don't want to mess something up.
Is this correct? No DL-03 Vent or hole is required?

Click image for larger version Name: 20220316_160719.jpg Views: 45 Size: 303.4 KB ID: 23468
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Larry Larson
Estes Park, CO
wirejock at yahoo dot com
Donated 12/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (3,000+ hours)
Empennage, wings, fuse, finishing kit done. Working FWF
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  #2  
Old 03-16-2022, 05:36 PM
RV7 To Go's Avatar
RV7 To Go RV7 To Go is offline
 
Join Date: May 2011
Location: Ontario, Canada
Posts: 333
Default
Quote:
Originally Posted by wirejock View Post
RV7A, IO-360-M1B
I'm working on baffles. Specifically #3.
I notice a Vent DL-03 SCAT tube flange on OP-40-4. Photo.
My gut tells me it's a carb heat scat tube vent. Since my build is an IO-360-M1B, injected, I planned to leave it off. I've become very careful lately and don't want to mess something up.
Is this correct? No DL-03 Vent or hole is required?

Attachment 23468
On my 7 that flange is connected to the cabin heat muff with 2" scat. Carb heat is off the fwd crossover pipe.
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RV4 - Built 2021 Time flown and Sold
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  #3  
Old 03-17-2022, 09:30 AM
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SeanB SeanB is offline
 
Join Date: Dec 2006
Location: Colorado Springs
Posts: 642
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Larry,

Post 3 on this thread gives a pretty good visual.
https://vansairforce.net/community/s...ad.php?t=81892
In this case, going to muffler, or heat muff, then to heater valve on firewall. Also, If you look at the second page of the planes you posted, halfway down is a "Warning" that talks about using a screen for heat, or not using one if you use it for carb.
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