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  #1  
Old 11-01-2017, 11:37 AM
ron sterba ron sterba is offline
 
Join Date: May 2007
Location: salem Oregon
Posts: 1,024
Question 1st condition inspection,IO320 AIRFILTER?

I have a K&N airfilter. A friend said (A&P) every year you throw it away and put in new no matter how many hours. ( I have 30 hrs ). OR,,,,OR use the RENEW kit from K&N sold on Vans parts website. The kit is $8.50 and the K&N airfilter is $32.00. As a experimental aircraft owner is it up to my discretion. It doesn?t look dirty and no grass blades on outside.

Ron in Oregon
RV9A
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  #2  
Old 11-01-2017, 11:57 AM
Timberwolf Timberwolf is offline
 
Join Date: Nov 2016
Location: Navarre, FL
Posts: 385
Default

Umm no. They do make K&N?s for certified as well called challenger filters. He is referring to the cheap foam filters. Get the cleaning kit and follow the instructions. No air filter is technically required, it?s an experimental.
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  #3  
Old 11-01-2017, 01:04 PM
lr172 lr172 is offline
 
Join Date: Oct 2013
Location: Schaumburg, IL
Posts: 6,721
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Quote:
Originally Posted by ron sterba View Post
I have a K&N airfilter. A friend said (A&P) every year you throw it away and put in new no matter how many hours. ( I have 30 hrs ). OR,,,,OR use the RENEW kit from K&N sold on Vans parts website. The kit is $8.50 and the K&N airfilter is $32.00. As a experimental aircraft owner is it up to my discretion. It doesn’t look dirty and no grass blades on outside.

Ron in Oregon
RV9A
At 30 hours, it should not require any cleaning or replacement. I have 450 hours on my filter and it still doesn't need a cleaning. These cotton filters actually perform better once they have some dirt on them. If you go to the K&N website, they give you a description and pictures to help determine when they are in need of a cleaning. They are very different than paper filters. After several years, the filter will shrink and that will require replacement to maintain a tight fit and avoid wear on you FAB.

Larry
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Last edited by lr172 : 11-01-2017 at 01:07 PM.
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  #4  
Old 11-01-2017, 01:23 PM
Rupester Rupester is offline
 
Join Date: Dec 2005
Location: Mahomet, Illinois
Posts: 2,195
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I concur with lr172. I have 370 hrs on mine and it looks like the day I installed it.
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  #5  
Old 11-01-2017, 01:33 PM
xavierm xavierm is offline
 
Join Date: Aug 2005
Location: Los Angeles, CA
Posts: 470
Default link

https://www.knfilters.com/cleaning-pics.htm
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  #6  
Old 11-01-2017, 02:01 PM
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UnPossible UnPossible is offline
 
Join Date: Jan 2008
Location: Granbury, TX
Posts: 564
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Thanks for posting the link to the pics.... I've been cleaning my filter way too often.
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RV-7A (Flying and Sold)
RV-10 in process (@#$$%# Cabin Top & Doors)
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  #7  
Old 11-01-2017, 02:58 PM
lr172 lr172 is offline
 
Join Date: Oct 2013
Location: Schaumburg, IL
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Quote:
Originally Posted by UnPossible View Post
Thanks for posting the link to the pics.... I've been cleaning my filter way too often.
This is one of those areas where you can create more problems with no benefit. The cotton filters can be over and under oiled. If the procedure is done incorrectly, you are left will a filter that performs worse than the one you started with.

Larry
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  #8  
Old 11-01-2017, 04:08 PM
ron sterba ron sterba is offline
 
Join Date: May 2007
Location: salem Oregon
Posts: 1,024
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OH THANK YOU,THANK YOU,,gentlemen! What a relief,that this makes common sense on the K&N filters but nowadays you just got to ask. Thanks for the website pictures from K&N Xavier. Much appreciated!
Ron in Oregon
RV9A N421HJ.
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  #9  
Old 11-01-2017, 08:17 PM
arunnells arunnells is offline
 
Join Date: Mar 2010
Location: Calgary, Alberta, Canada
Posts: 130
Default My experience with K&N

350,000 K in my Honda Civic, 230,000 K in my Audi A4, 487 hrs in my RV-6, 700 hrs in my RV-3, they all look like new after recommended servicing.
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  #10  
Old 04-26-2018, 04:31 PM
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RV7 To Go RV7 To Go is offline
 
Join Date: May 2011
Location: Ontario, Canada
Posts: 321
Default Air filter

How are you guys getting hundreds or hours out of one of these air filters? I have 100 hrs on my stock O360 with stock Vans FAB using the K&N E3450 air filter. It came with the firewall forward kit and was oily and in a plastic bag when first installed last summer (yes I removed the bag). Checking it after 100 hrs and it has shrunk about 3/4" in diameter and is not flexible any more. Not flying in rain although light precipitation a couple times. What gives?
Al

Last edited by RV7 To Go : 04-26-2018 at 04:54 PM.
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