how bad were my engine air filter? replaced at 23000km PIC INSIDE - Drive Accord Honda Forums | radio-pro.ru
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post #1 of 27 Old 04-25-2016, 05:47 AM Thread Starter
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how bad were my engine air filter? replaced at 23000km PIC INSIDE

i was checking engine air filter yesterday, to my surpise, it looks pretty bad. the pic just show one side which looks fairly dirty, the other side is fine.


vaccum the inside but some dirt seems to be stuck.


what you guys think?

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post #2 of 27 Old 04-25-2016, 06:01 AM
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Not that out of the ordinary - especially with Spring here and pollen and a million other things in the air.

Wipe the air box out with a damn shop towel, add a new filter and call it a day.

If you plan on keeping the car, look at getting an aftermarket drop in filter (I prefer dry over oiled Afe makes the one I bought).

My wife's '11 Sonata - I check her filter every oil change and I keep several filter on hand - I buy one shipment of maintenance items from Rock Auto about once every other year.

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post #3 of 27 Old 04-25-2016, 06:12 AM
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That filter looked normal, not that dirty. Take a look at this video, he has some really dirty Air filters.






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post #4 of 27 Old 04-25-2016, 06:55 AM
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The "out" side is always going to look dirty, unless you live somewhere where you never have to wash your car.
If the side toward the engine is dirty, then you have a problem.
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post #5 of 27 Old 04-25-2016, 07:29 AM
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This was mine at 42,000 miles on a 2013 -



Also replaced the cabin air filter at the same time. Not sure if the stock one is carbon or just a plain filter, but the replacement was just a plain one -

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post #6 of 27 Old 04-25-2016, 08:01 AM
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All photographs are normal excepting I wonder where that oily sticky black junk is coming from.

Every time I replace the filter (engine) it has that oily black goop. It's on the inflow side so it's not coming from the engine.

Where is it coming from? Is the tube reaching down so far it picks up all the road oils and sucking them in?


Has anyone gone through the trouble of sealing all the gaps along the length of that tube? Does it eliminate the presence of the black goop?

Anyone? Beuhler! Beuhler!

TIA

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post #7 of 27 Old 04-25-2016, 08:20 AM
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Originally Posted by Miker View Post
All photographs are normal excepting I wonder where that oily sticky black junk is coming from.

Every time I replace the filter (engine) it has that oily black goop. It's on the inflow side so it's not coming from the engine.

Where is it coming from? Is the tube reaching down so far it picks up all the road oils and sucking them in?
My theory is it's from driving in the rain: oil from the road mixed in the spray from other cars.

(It's just a theory though, since it never rains here.)
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post #8 of 27 Old 04-25-2016, 08:33 AM
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Originally Posted by Lee DeRaud View Post
My theory is it's from driving in the rain: oil from the road mixed in the spray from other cars.

(It's just a theory though, since it never rains here.)
I would agree except that there is no sign of this black, let's call it oily goop, in the intake snorkel by the front of the hood even as far down I can get my arm in the tube. It's actually clean except for dust.

I can't, or should say won't delve into the lower resonator box to see if it's there too.

Just curious if anyone who's exchanged their OEM air intake to CAI,etc noticed this goop in the resonator box if you removed the box.

Now that I think of it, maybe the filter is impregnated with something. Probably not oil but some chemical that reacts with the environmental junk in the air.

Just thinking out loud.

Mike

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post #9 of 27 Old 04-25-2016, 08:53 AM
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That's nothingZ. Here's my filter off my odyssey at 76k miles. Thought it was changed around 30k but obviously it wasn't.

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post #10 of 27 Old 04-25-2016, 08:56 AM Thread Starter
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i guess my question is, does it look bad enough for me to replace it right away. i guess the answer is it's definitely too early. however, i guess it doesnt hurt to replace it early. i wouldnt want the filter to look as bad as above.
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post #11 of 27 Old 04-25-2016, 05:16 PM
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I'm curious, with the onboard maintenance minder, at what mileage does the code to change air filters usually come on? My car has almost 13k miles and the air filter looks a little better than the OP's but I'm more than likely going to just keep it in there since the car still feels very lively.

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post #12 of 27 Old 04-26-2016, 01:06 PM
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Quote:
Originally Posted by Miker View Post
All photographs are normal excepting I wonder where that oily sticky black junk is coming from.
TIA
Quote:
Originally Posted by Lee DeRaud View Post
My theory is it's from driving in the rain: oil from the road mixed in the spray from other cars.
I'm fairly confident that it is soot and particulate from other vehicle exhaust. You have a white surface sucking air through it at a high rate, it's going to collect much more of this particulate and hang onto it than any other surface of the car.

Quote:
Originally Posted by mingstar88 View Post
i guess my question is, does it look bad enough for me to replace it right away... however, i guess it doesnt hurt to replace it early....
It's at the point where I'd consider replacing, but only because I'm a weenie about this and am addicted to replacing parts in an older car. No harm in replacement, just a little higher operational cost.

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post #13 of 27 Old 04-26-2016, 02:15 PM
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That air filter is good for another 15k miles.
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post #14 of 27 Old 04-26-2016, 02:24 PM
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Yes, that black gook has always been a mystery to me too. All cars seem to get that. But what I find equally interesting is how both Mingstar’s and Nadam’s air filters accumulated that black gook in the same pattern in the same areas of the filter. What does that tell us about air flow through the air intake? Does most of the air somehow get funneled through a small portion of the filter?

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post #15 of 27 Old 04-26-2016, 03:01 PM
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In another lifetime I used to ride a motorcycle without a helmet. At the end of a ride, a white paper towel used to wipe my face would be black. It's amazing the crap that was in the air. Urban riding wasn't so bad, but highways were the worst.

Baldeagle, I see that effect on my other car too. There's definitely a certain pattern to it.


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