B.S. Thread

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ajordan1975 said:
I'm guessing maybe you did?? :meh:
Click to expand...

There was talk of an interesting diesel swap in the works for one of the other CLCers, but all communication on the subject has gone silent. ;)
 
FYI...if anybody needs a place to enjoy a Christmas meal, Tracy Lynn and I will be having dinner...or a late lunch...at 1:30 Christmas afternoon. We'll have LOTS of food...so if you need someplace to enjoy the holiday, send me a message and we'll get you here!
 
Saw something interesting yesterday afternoon in swapping parts on my Cherokees:
I've always heard that oil charged filters let more dirt through than their paper counterparts, but I guess I chose not to believe it. After seeing the air intake duct from my cherokee, that has been equipt with a K&N filter for most of its life, and the filter from my new cherokee, that seems to have been equipt with stock type paper filters all its life-- I think I will be shelving my K&N filter. I don't know how much damage these low micron, fine dust particles may do. Maybe they just flow right through the engine? I don't think the extra airflow is worth it though.
Was thinking maybe this new to me cherokee maybe just hasn't seen as many dirt roads-- but the intake is way, way dirtier than mine. My cherokee's air intake is on the right. The new cherokee's lower air box-
image.webp
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I am pretty sure we talked about this one time Luke. I asked you how often you cleaned your filter and you said not to often you just pulled it out and sprayed more oil on it. Brett how often did clean the one on your motorcycle? I did some extensive reading on this subject since I have one and was a little worried. Out of the box the paper will do better then the k&n but as the k&n get dirtier the extra dirt helps filter the air. In the end the k&n will win as the paper will clog faster and you will have to replace it a lot sooner then cleaning the k&n and a brand new or clean air filter is actually letting more dirt in then a dirtier one. So right before you have to clean your k&n it's actually filtering at its best. I thought that was weird as I have always been told the run a clean filter as it's better gas mileage. Probably true but it is worse for your engine. I can't find that article but it was written by a major air filter manufacturer, but not k&n. Here is one showing some different types of air filters and k&n is one of the worst I think, but it is a clean one which it would be at its worst. You can also get a foam covering for your filter so it's kind of a pre filter. I have a cyclone that's is in my fj Arcady that takes out some particles and am probably going to put a covering on my snorkel that will also help. They also mentioned to get an airflow sensor installed which lets you know when it needs to be cleaned or changed so you don't have to take it out and check it all the time. Reason for that is when they did there studies taking it out to check the filter it actually let more dirt or bigger particles would actually fall in versus only taking it out when you had to. So the 2 worst things is checking your air filters to frequently or changing,cleaning it especially to frequently. A friend of mine who races tears down his engine every year found the same problem Brett had with his motorcycle. He cleaned his after every outing. If he wanted to preserve his engine he should have let it be dirty. I would think a paper filter would be the best for his kind of racing and just change it every race. It is better then the k&n when it's clean. Anyway here is the article I found testing a couple.
http://www.bobistheoilguy.com/airfilter/airtest3.htm
 
I didn't clean the filter much, maybe once in 20k miles. It very likely flowed better. By the time it was all said and done i had open velocity stacks and race only pipe. Thing was a beast. I sold it and bought a new one (97) and left it stock because I got tired of the noise and 2 stroke like power band. If I was racing or needed every last bit of power I would look into the fabric or foam again, but I am not in that mode anymore.
 
FWIW, I have run k&N filters on my last few cars. I have not seen any unusual buildup in the intake or upper air box, including about 100k miles on my last chevy with intake/k&n cone filter. I don't clean them often, and I don't oil much when I do: just enough to turn the gauze pink, wipe off excess.

A Ford technician told me, years ago, that Ford had seen a correlation between k&n filters and hotwire MAF failure. He was instructed to refuse warranty claims on failed MAF units when a k&n filter was installed. The thinking was that the oil collected on the wires and caused fouling/failure. I gave my dad a k&n for his Exploder ~8 years ago, and he ran it until he sold the truck last year...no MAF failure.

Luke, It's hard to know what to make of your pictures, but I guess it seems to point to the paper filter filtering better. Then again, maybe it shows that oil from the k&n gets blown onto the inside of the intake, causing the dust that gets through (and might also get through a paper filter) to stick?
 
I like the idea of the oil getting through and the dirt sticking to it so it will always look worse. I also read where some where having problems getting a good seal which allowed dirt through. I am happy with mine and will continue to use it and let it get real dirty as it won't affect gas mileage or at least any worse them it already is. I used paper until I got an oil change 4 days after changing the air filter and I got a call asking if I wanted it changed. I said I just changed it 4 days ago and they said come down and they will show it to me. We pulled it out and dirt was literally falling out of it. Must have been from the trail ride a couple days earlier. If I had to change it after every time I was on a trail run my wife would make me sell the fj. I also out the snorkel on to help with the dust as well.
 
I thought the write up was funny.

"Other than the Wrangler and 4Runner there is very little left in the terms of non-uni-bodied pansy wagons."

Nice to see Ford seeing there is a need and stepping up..lol
 
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