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  #1  
Old 01-24-2022, 08:45 AM
N667CD N667CD is offline
 
Join Date: Jun 2019
Location: 7FL6
Posts: 9
Default Air filter cover plate; air filter distorting ? Why?

I've had two air filters distort. The air filter medium is bent out of shape. The air filter cover plate that should hold the air filter in place cracked where the leading edge on the outboard side is bent up to screw in place to the baffling. I don't have my plans with me, as I am away from home for the next 3 months. Anyone know the part number for the air filter hold down cover plate? IO390 engine, standard Vans finishing kit baffling. Anyone else having a problem with their air filter getting distorted? Any suggestions about what to do? Thanks, JDW
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  #2  
Old 01-24-2022, 09:06 AM
Nova RV Nova RV is online now
 
Join Date: Aug 2015
Location: Leesburg, VA
Posts: 603
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Backfires probably when starting.
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Leesburg, VA

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  #3  
Old 01-24-2022, 10:22 AM
Bavafa Bavafa is offline
 
Join Date: Oct 2007
Location: Sacramento, CA
Posts: 4,002
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As Chris mentioned, backfire in the intake. Part # CB-00033 @$8
Multiple people have had this to happen
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N825SM RV7A - IO360M1B - SOLD
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  #4  
Old 01-24-2022, 10:23 AM
AlexC AlexC is offline
 
Join Date: May 2018
Location: Oviedo, FL
Posts: 134
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Quote:
Originally Posted by N667CD View Post
Anyone know the part number for the air filter hold down cover plate?
CB-00033 Air Filter Frame Cover

Backfire most likely, as Chris mentioned.
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2021 RV-14A: Flying as of 4/13/21 (>100hrs), and painted by Evoke Aviation on 5/18/22
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  #5  
Old 01-24-2022, 11:54 AM
N667CD N667CD is offline
 
Join Date: Jun 2019
Location: 7FL6
Posts: 9
Default Air Filter hold down cover plate on order from Vans; THANK YOU FOR PART NUMBER

Roger, thanks guys, for the speedy reply. Part on order from Vans. Now I need to learn how to start engine without a backfire. JDW
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  #6  
Old 01-24-2022, 02:18 PM
Tom Martin Tom Martin is offline
 
Join Date: Jan 2005
Location: Ontario, Canada
Posts: 1,610
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Many of these filters could be sourced locally; check local automotive supply stores.
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  #7  
Old 01-25-2022, 04:30 AM
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Jetmart Jetmart is offline
 
Join Date: Sep 2019
Location: Windsor, Ontario
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Quote:
Originally Posted by N667CD View Post
Roger, thanks guys, for the speedy reply. Part on order from Vans. Now I need to learn how to start engine without a backfire. JDW
Perhaps check your timing.
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1941 Tiger Moth
2017 Waco YMF-5
RV-14 Kit # 140694 - First Flight June 22, 2021
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  #8  
Old 01-25-2022, 05:31 AM
RV6-KPTW RV6-KPTW is online now
 
Join Date: Oct 2014
Location: Sebastian Fl X26
Posts: 216
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I have also seen it happen on shutdown if mixture control is not correctly adjusted to be not quite lean enough to do a full shut down.
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  #9  
Old 01-25-2022, 09:14 AM
blaplante blaplante is offline
 
Join Date: Jan 2010
Location: Southern California
Posts: 472
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Excess horsepower deforming the filter?
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  #10  
Old 01-25-2022, 12:15 PM
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wcalvert wcalvert is offline
 
Join Date: Jan 2019
Location: Anacortes Wa
Posts: 477
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My -7 blew out a filter and it looked just like that ... after a backfire from too much priming.

IO-360 EFII Ignition
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