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09-26-2019, 11:35 AM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,687
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Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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09-28-2019, 08:50 AM
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Join Date: Jul 2007
Location: Taylorsville, Ga
Posts: 798
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I always had difficulty in removing the lower cowl because of the lower cowl inlet baffles which were rivet on at the inlets. The dimensions caused the lower cowl to hit the back of the spinner plate before it would drop down. I removed the riveted on seals and replaced with a removable plate and seal for each side. Each attaches with three screws after the lower cowl is installed. This eliminate the clearance problem and works well. I believe the removable seals allow for more overlap and better seal to the upper than before. Ignore the 1/8 rivet holes where the old baffle was attached at least for now. I like it. Will work on the link later today, thanks
Try this one !! If you notice right pic you can see where the spinner has scratched all the paint off the lower cowl
https://photos.app.goo.gl/Kwx3hDNC4WLfDBcF9
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DRRhodes
2020 VAF Supporter
RV9 N908DR
Last edited by DennisRhodes : 09-28-2019 at 11:17 AM.
Reason: Link not working
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09-28-2019, 10:43 AM
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Join Date: Jan 2005
Location: Indianapolis, IN (KUMP)
Posts: 1,024
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The photo link doesn?t work for me...
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Thomas Short
KUMP - Indianapolis, IN / KAEJ - Buena Vista, CO
RV-10 N410TS bought / flying
RV-8 wings / fuse in progress ... still
1948 Cessna 170 N3949V
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09-28-2019, 11:32 AM
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Join Date: Oct 2005
Location: 08A
Posts: 9,500
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Note the nice, even wear marks on Walt's seals. There are a few leaky spots, but not many.
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Dan Horton
RV-8 SS
Barrett IO-390
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09-28-2019, 01:28 PM
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Join Date: Feb 2005
Location: LSGY
Posts: 3,200
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removeable lower cowl baffle seal
Quote:
Originally Posted by DennisRhodes
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This seems like a good idea - do you have any photos of the inside?
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09-28-2019, 02:21 PM
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Join Date: Jul 2007
Location: Taylorsville, Ga
Posts: 798
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No, but I might be able to get you a pic of the baffle as removed. Comes out with 3 screws. The baffle mtl is riveted to an alumin plate and has three random located nut plates attached . So the baffle mtl is sandwiched between the alumn and the cowl when attached. Bottom side would show only alumn and nutplates.
__________________
DRRhodes
2020 VAF Supporter
RV9 N908DR
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09-28-2019, 02:28 PM
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Join Date: Jan 2005
Location: Medford, NJ USA
Posts: 283
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Quote:
Originally Posted by rv8ch
This seems like a good idea - do you have any photos of the inside?
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09-28-2019, 03:03 PM
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Join Date: Jan 2005
Location: Medford, NJ USA
Posts: 283
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here is how it is done on the 10

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09-28-2019, 03:52 PM
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Join Date: Jul 2007
Location: Taylorsville, Ga
Posts: 798
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Thanks for adding the pic, I 've never been able to do that!! Didnt know that was the RV 10 method but it also works well on my 9 and yes aside from nutplates vs a AN nut, thats exactly same. Having the nutplates allow me to remove the seal before the cowl comes off.
__________________
DRRhodes
2020 VAF Supporter
RV9 N908DR
Last edited by DennisRhodes : 09-28-2019 at 05:02 PM.
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09-28-2019, 07:08 PM
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Join Date: Jul 2005
Posts: 1,347
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Quote:
Originally Posted by DanH
Note the nice, even wear marks on Walt's seals. There are a few leaky spots, but not many.
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That big 'ol hole behind #3 can't be helping! 
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Mike W
Venice, FL
RV-6A. Mattituck TMX O-360, FP, GRT Sport EFIS, L3 Lynx NGT-9000
N164WM
N184WM reserved (RV-8)....finishing kit in progress. Titan IOX-370
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