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07-15-2020, 10:38 AM
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Super Moderator
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Join Date: Oct 2005
Posts: 752
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Quote:
Originally Posted by tracy
Chris, I eliminated that problem with Increased To .090 Thickness, 2024 Aluminum With 45 Degree Linear Brace From Carb To Front Of Air Box (no more mount cracks)
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Thanks Tracy. I was going to increase the thickness of the aluminum when I realized it was already .064 and figured if that is going to crack then anything might. But I'll give that a try next time, especially the "brace" -- that's probably the key, like the one I use to stabilize the engine baffles near the oil cooler.
Chris
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Chris Pratt (2020 VAF DUES PAID)
RV-8 Flying, 850+hours
N898DK
Lycoming O-360-A1A, Hartzell CS
52F (Northwest Regional, Aero Valley, Whatever, TX)
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07-15-2020, 11:43 AM
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VAF Moderator / Line Boy
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Join Date: Jan 2005
Location: Dayton, NV
Posts: 12,243
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Quote:
Originally Posted by chrispratt
Thanks Tracy. I was going to increase the thickness of the aluminum when I realized it was already .064 and figured if that is going to crack then anything might. But I'll give that a try next time, especially the "brace" -- that's probably the key, like the one I use to stabilize the engine baffles near the oil cooler.
Chris
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The brace does appear to work Chris - I have them on all of our planes, and once installed, we haven’t had a cracked plate since.
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Paul F. Dye
Editor at Large - KITPLANES Magazine
RV-8 - N188PD - "Valkyrie"
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
A&P, EAA Tech Counselor/Flight Advisor
Dayton Valley Airpark (A34)
http://Ironflight.com
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07-15-2020, 12:47 PM
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Join Date: Mar 2018
Location: Alpharetta, GA
Posts: 93
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Quote:
Originally Posted by Ironflight
The brace does appear to work Chris - I have them on all of our planes, and once installed, we haven’t had a cracked plate since.
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I just fabricated & installed a 0.063 top plate as part of my AFP injection conversion. The original plate had a large crack in it. Sounds like I now need to add that brace. Does anyone have a picture? I'm a visual learner. 
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David
RV-7A Slider N87BP (bought flying in 2018)
Superior XP-IO-360
AFP Fuel Injection & Dual SDS CPI-2 ignition
KLZU - Lawrenceville, GA
2020 Dues Paid
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07-15-2020, 01:24 PM
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Join Date: Apr 2016
Location: Yorkville Il
Posts: 67
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No way that was caused between inspections There I said it sorry
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RV 7 test flight summer 19!
1948 C-140 Flying By us for 14yrs
Dues PD for 2019 Jeff
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07-15-2020, 02:15 PM
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Join Date: Feb 2008
Location: Calgary, Alberta
Posts: 999
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Oh, yes it can. I watched an owner remove a filter, clean & re-oil it and put it all back together. 2 months later after a major trip, he came in for an oil change & found his filter trying to escape, not near as severe as OP's example, but if given a few more hours would have been as ugly. The owner commented after the fact that there was a ring groove in the bottom of the FAB but didn't connect it's importance.
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Ralph
built a few RVs, rebuilt a few more, hot rodded some, & maintained/updated a bunch more
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07-19-2020, 12:27 PM
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Join Date: Dec 2012
Location: chattanooga,tn
Posts: 231
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Quote:
Originally Posted by David Carter
I just fabricated & installed a 0.063 top plate as part of my AFP injection conversion. The original plate had a large crack in it. Sounds like I now need to add that brace. Does anyone have a picture? I'm a visual learner. |
https://vansairforce.net/community/a...1&d=1595182272
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Tracy Willingham
RV-8
Powered Paraglider
Pitts S2B- sold
Chattanooga, Tn
Dues Paid
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