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Cleaning Air Filters

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Dennis.Kirby(at)kirtland.
Guest

Posted: Mon Apr 02, 2007 9:13 am Post subject: Cleaning Air Filters

Kolb Friends -



What's the recommended method for cleaning the K&N air filters on our

Rotax engines?



I have the prescribed K&N air filter oil ready to apply once they're

clean.  But I didn't buy their expensive filter cleaning solution.  Can

these filters be adequately cleaned using just warm water and a mild

detergent?



Thanks -



Dennis Kirby

Mark-3, 912ul in

Cedar Crest, NM

Paul Petty

Joined: 11 Jan 2006
Posts: 226
Location: Mississippi

Posted: Mon Apr 02, 2007 9:48 am Post subject: Re: Cleaning Air Filters

Dennis,

I sell the K&N Recharger kit retail for 11.99. comes with a bottle of cleaner and a bottle of oil. probably enough to clean the rotax filters several times. 



do not archive

_________________
Paul Petty
Kolbra #12
Ms Dixie
912 UL 70" warp

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Mon Apr 02, 2007 9:50 am Post subject: Cleaning Air Filters

Can

| these filters be adequately cleaned using just warm water and a mild

| detergent?

|

| Thanks -

|

| Dennis Kirby

Dennis K:



I have been using K&N since day one, 1984.  I tried the K&N filter 

cleaning fluid, soak and water, and was never happy with the results. 

Right or wrong,  have been washing my K&N filters with gasoline.  Let 

them air dry.  Oil with K&N filter oil for cotton filters, let the 

soak over night, and put them back on the airplane.  Be careful when 

you purchase filter oil.  First trip to Alaska I could not find the 

correct K&N oil, so settled for K&N foam air filter oil.  Really had a 

mess on my hands the rest of the flight.



john h

mkIII

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

Ed in JXN

Joined: 24 Mar 2006
Posts: 122

Posted: Mon Apr 02, 2007 9:54 am Post subject: Cleaning Air Filters

Hi Dennis,



        Precisely.  Mild solution of dishwashing detergent in warm water, 

and I add to this a few drops of alcohol.  Same solution works great to 

clean windows.

        Just be sure to rinse the filter well in clean water, and they can 

be blow-dried with low-pressure compressed air.  I let mine stand overnight 

wrapped in paper towels, seems to wick the water out.



Ed in JXN

MkII/503

---

ul15rhb(at)juno.com
Guest

Posted: Mon Apr 02, 2007 10:00 am Post subject: Cleaning Air Filters

I immerse the filter in a bowl filled with water and a few ounces of 

liquid laundry detergent (like Tide) and let it soak for 2 days. I 

remove it and rinse it thoroughly under warm water. I let it air dry 

for 2 days and then oil it. It's best to have two filters. One can be 

soaking while the other is on the engine.



Ralph Burlingame

Original Firestar

20 years flying it

-- "Kirby Dennis Contr MDA/AL" <Dennis.Kirby(at)kirtland.af.mil> wrote:


<Dennis.Kirby(at)kirtland.af.mil>



 

Kolb Friends -



What's the recommended method for cleaning the K&N air filters on our

Rotax engines?



I have the prescribed K&N air filter oil ready to apply once they're

clean.  But I didn't buy their expensive filter cleaning solution.  

Can

these filters be adequately cleaned using just warm water and a mild

detergent?



Thanks -



Dennis Kirby

Mark-3, 912ul in

Cedar Crest, NM

 

________________________________________________________________________

Interested in getting caught up on today's news?

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http://track.juno.com/s/lc?s=198954&u=http://www.usatoday.com/news/front.htm?csp 4

biglar

Joined: 14 Jan 2006
Posts: 457

Posted: Mon Apr 02, 2007 1:28 pm Post subject: Cleaning Air Filters

I'm not sure just what solvent they use, but I was told that ordinary dish detergent will do fine.  Spray it on the outside, let it soak, then hose it off from the inside with a low pressure hose with no nozzle.  Do NOT use compressed air, or high pressure water.  The way it was explained to me was that the high pressure will separate the fibers in the filter media, creating holes.  You don't want holes.  You may not see them with the bare eye, but they'll be there.                            Lar.   



 On 4/2/07, Ralph <ul15rhb(at)juno.com (ul15rhb(at)juno.com)> wrote: [quote]--> Kolb-List message posted by: "Ralph" <ul15rhb(at)juno.com  (ul15rhb(at)juno.com)>



I immerse the filter in a bowl filled with water and a few ounces of

liquid laundry detergent (like Tide) and let it soak for 2 days. I

remove it and rinse it thoroughly under warm water. I let it air dry 

for 2 days and then oil it. It's best to have two filters. One can be

soaking while the other is on the engine.



Ralph Burlingame

Original Firestar

20 years flying it

-- "Kirby Dennis Contr MDA/AL" < Dennis.Kirby(at)kirtland.af.mil (Dennis.Kirby(at)kirtland.af.mil)> wrote:

--> Kolb-List message posted by: "Kirby Dennis Contr MDA/AL"

<Dennis.Kirby(at)kirtland.af.mil  (Dennis.Kirby(at)kirtland.af.mil)>





Kolb Friends -



What's the recommended method for cleaning the K&N air filters on our

Rotax engines?



I have the prescribed K&N air filter oil ready to apply once they're 

clean.  But I didn't buy their expensive filter cleaning solution.

Can

these filters be adequately cleaned using just warm water and a mild

detergent?



Thanks -



Dennis Kirby

Mark-3, 912ul in 

Cedar Crest, NM



________________________________________________________________________

Interested in getting caught up on today's news?

Click here to checkout USA TODAY Headlines. 



[b]

_________________
Larry Bourne
Palm Springs, CA
Building Kolb Mk IIIC
"Vamoose"

JetPilot

Joined: 10 Jan 2006
Posts: 1246

Posted: Mon Apr 02, 2007 6:38 pm Post subject: Re: Cleaning Air Filters

Thanks for the warning about high pressure water Lar, I would have surely opened up some holes       For the Drying, a regular house fan blowing on the filter will accelerate the process, probably be ready in a couple hours with a good airflow over it.



Where is the best place to buy the K&N air filter Oil ?

_________________
"NO FEAR" - If you have no fear you did not go as fast as you could have !!!

Kolb MK-III Xtra, 912-S

joe

Joined: 24 Mar 2007
Posts: 16
Location: Broken Arrow, Ok

Posted: Tue Apr 03, 2007 4:24 am Post subject: Re: Cleaning Air Filters

I've used these filters on cars for years.  I also wash them with any mild detergent, but always use the K&N oil.  The supplies have always been available in any auto parts store, it would be the same stuff.  You get quite a few applications out of a can.

Joe

Dennis.Kirby(at)kirtland.
Guest

Posted: Tue Apr 03, 2007 7:28 am Post subject: Cleaning Air Filters

"JetPilot" << Where is the best place to buy the K&N air filter Oil ? >>



Almost any motorcycle shop.

$8. for a 6-oz can - that'll probably last a dozen applications.



Dennis K.

frank-margie(at)worldnet.
Guest

Posted: Tue Apr 03, 2007 7:19 pm Post subject: Cleaning Air Filters

I read somewhere (some years back) that it's  best to not oil the K&N's,  the backflow from the engine (2  strokes) will do the oiling.  Seemed to work better that way on the old  377, mine and a buddys (easier starting, faster run up). Haven't oiled one  in a long time now,  only clean them.  (Dish soap and water, low  pressure water rinse from inside.)  Anyone else remember reading that  info?

  

 Frank Clyma

 Orange Park, FL

 do not archive



   [quote][b]

d-m-hague(at)comcast.net
Guest

Posted: Wed Apr 04, 2007 3:11 am Post subject: Cleaning Air Filters

At 11:14 PM 4/3/2007, frank & margie wrote:

  	  Quote: 	
		  I read somewhere (some years back) that it's best to not oil the K&N's,  the backflow from the engine (2 strokes) will do the oiling.  Seemed to work better that way on the old 377, mine and a buddys (easier starting, faster run up). Haven't oiled one in a long time now,  only clean them.  (Dish soap and water, low pressure water rinse from inside.)  Anyone else remember reading that info? 	


 I would think if you're not taking off and landing in a dusty environment, it's might be OK (but not optimum).  Lots of older planes had no air filter at all, so that any unlucky bug in the vicinity took a trip through the engine.  Of course those old engines didn't have tiny needle bearings that a single grain of sand could lock up, either.



 I'll keep on oiling mine.



                                 -Dana

 --

 --

 The citizens of the United States are getting the government they deserve. The problem is that I'm also getting the government they deserve.    [quote][b]

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Wed Apr 04, 2007 3:53 am Post subject: Cleaning Air Filters

| I would think if you're not taking off and landing in a dusty 

environment,

| it's might be OK (but not optimum).  |

|                                 -Dana

Dana:



Lots of folks labor under the misunderstanding that once they break 

ground and get up into clean air, they don't really need an 

aircleaner.  Might be surprised how much crude is in the air, at all 

altitudes, that one can not see.  Check it out.  Fly all day on a 

cross country.  That evening check the leading edge of wings, prop, 

struts, etc., and see how much crude is packed on the airplane.



Another point.  Most marine applications do not use aircleaners, only 

flame arrestors.  Bet the air on the lake, river, and coast is full of 

contamination too.



I'm going to keep using K&N filter oil on my filters also.



john h

mkIII

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

frank-margie(at)worldnet.
Guest

Posted: Thu Apr 05, 2007 4:37 pm Post subject: Cleaning Air Filters

REF:

  

 environment,

| it's might be OK (but not optimum).   |

|                                  -Dana

Dana:



Lots of folks labor under the misunderstanding  that once they break 

ground and get up into clean air, they don't really  need an 

aircleaner.  Might be surprised how much crude is in the air,  at all 

altitudes, that one can not see.  Check it out.  Fly all  day on a 

cross country.  That evening check the leading edge of wings,  prop, 

struts, etc., and see how much crude is packed on the  airplane.



Another point.  Most marine applications do not use  aircleaners, only 

flame arrestors.  Bet the air on the lake, river, and  coast is full of 

contamination too.



I'm going to keep using K&N  filter oil on my filters also.



john h

mkIII 

 ------------------------------------

  

 Guess I'll take another look at oiling  filters.  Maybe the dual carb engines (which I now have) have enuf more  filter area to avoid the problem I saw on the single carb 377.  (Can't  believe, with the depth of experience on this list, that nobody else ever  experienced the same effect.)

  

 Thanks everybody for the feedback.

  

 Frank Clyma

 do not archive 

  

  

     



   [quote][b]

russ(at)rkiphoto.com
Guest

Posted: Thu Apr 05, 2007 5:10 pm Post subject: Cleaning Air Filters

A small point of correction? you say "most marine engines don't use air cleaners -- true for the smallies, but the big ($40-50 thou each) ones sure do! Lots of crud at real low altitudes, over land or water.

On Apr 5, 2007, at 8:37 PM, frank & margie wrote:

 	  Quote: 	
		  REF:

 

environment,

| it's might be OK (but not optimum).  |

|                                 -Dana

Dana:



Lots of folks labor under the misunderstanding that once they break 

ground and get up into clean air, they don't really need an 

aircleaner.  Might be surprised how much crude is in the air, at all 

altitudes, that one can not see.  Check it out.  Fly all day on a 

cross country.  That evening check the leading edge of wings, prop, 

struts, etc., and see how much crude is packed on the airplane.



Another point.  Most marine applications do not use aircleaners, only 

flame arrestors.  Bet the air on the lake, river, and coast is full of 

contamination too.



I'm going to keep using K&N filter oil on my filters also.



john h

mkIII

------------------------------------

 

Guess I'll take another look at oiling filters.  Maybe the dual carb engines (which I now have) have enuf more filter area to avoid the problem I saw on the single carb 377.  (Can't believe, with the depth of experience on this list, that nobody else ever experienced the same effect.)

 

Thanks everybody for the feedback.

 

Frank Clyma

do not archive 

 

 

    



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