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Discussion Starter · #1 ·
I have a 2015 John Deere X738 and wondered why there are 4 holes in the top of the air cleaner housing and 5 holes in the center of the air filter which allow outside unfiltered air to go directly to the air intake. I am concerned that this will allow contaminates into the engine and lead to premature engine failure.
Am I missing something?
 

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As long as rubber seal is there that the center of the air filter sits down on , your good.


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Discussion Starter · #3 ·
I understand, but there is still by design a clear path for unfiltered outside air to enter the air intake of the engine through these holes. Isn't this a path for dirt to get into the engine?
 

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This is where the air goes, you’re good


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Discussion Starter · #5 ·
Thanks, Thought air when in the center - just for info what is the center hole for?
 

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I had a strange sense of deja vu when I read this. So I searched and found this

I don't remember if I had that same feeling when I read that one or not.
 

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Discussion Starter · #7 ·
Thanks, I also looked closer at the center hole this morning and saw it went through to the top of the engine and assumed it was another avenue for heat to exit from the engine
Again thanks for the quick response.
 

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1988 JD 332, 2002 JD X585, 1989 JD 756
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Thanks, I also looked closer at the center hole this morning and saw it went through to the top of the engine and assumed it was another avenue for heat to exit from the engine
Again thanks for the quick response.
I thought this also until I looked closer and studied it a bit. Was relieved to find it didn't go into the intake!
 

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I believe the holes are for drainage to keep water from collecting in the recess.
 

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Maybe, but why do they have the recess in the first place?
And, how does the rain get in there with the hood on?
 

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Maybe, but why do they have the recess in the first place?
And, how does the rain get in there with the hood on?
They probably have the recess because that is the less costly way to do it. You either have the recess or have a filler below the cover.
 
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