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 Excessive Blow By 
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Joined: November 11 2007, 1:43 PM
Posts: 124
Location: Moscow PA
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Post Excessive Blow By
Went out to clean a bit of the engine bay and noticed the air filtered needed cleaning. So i removed the filter and the bottom was pretty soaked in oil. Took apart the rest of the intake and had oil in the MAF and into the manifold. Now i know some blow by is normal and was going to chalk it up to that and just buy a catch can. I inspected the oil to make sure thats all it was and noticed it was a little smokey, now im thinking thinking maybe my rings are going. Motor has 135k miles and has never been rebuilt. I'm going to look around and seen if i can pick up a Compression Tool and check to see the results. It's definitely not normal for that amount and consistency to be in the air intake right? This is the best picture i could get of it to show the quality. Thanks for any advice!


1992 Krylon White Mazda MX-3 RS. Cold Air Intake,17 inch Voxx rims with Toyo Proxez 4, Black Projectors, Black Taillights,Smoked Turn Signals.
1993 Brilliant Black Mazada MX-3 GS. KLZE, Short Shifter,

April 26 2012, 6:32 PM
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Joined: December 30 2008, 4:41 AM
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Location: Calgary, Alberta, Canada
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Post Re: Excessive Blow By
that's definitely not normal, as to why it's doing it, i have no idea

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April 27 2012, 12:12 AM
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Joined: April 07 2008, 1:06 PM
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Location: Manitoba
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Post Re: Excessive Blow By
Definitely rings. No other place for oil to blow into intake.

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April 27 2012, 11:10 AM
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Joined: April 18 2002, 2:01 AM
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Location: Washington state
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Post Re: Excessive Blow By
I would check your PCV too, could cause issues if it is stuck open. but not that much. When turbo I would use a small fuel filter inline of the PCV to watch my blow by It would not hurt to do that in this case either.

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April 27 2012, 2:29 PM
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