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Equilon
 Post subject: Oil in air cleaner
PostPosted: Wed Jul 13, 2011 11:59 am 
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I'm stumped. I can't seem to find how I'm getting oil into the air cleaner. I have fresh oil under the air filter.

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cleaver
 Post subject: Re: Oil in air cleaner
PostPosted: Wed Jul 13, 2011 1:09 pm 
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Location: Redfield SD
It is called blow by..
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Ben
 Post subject: Re: Oil in air cleaner
PostPosted: Wed Jul 13, 2011 2:07 pm 
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+1 ^
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Equilon
 Post subject: Re: Oil in air cleaner
PostPosted: Wed Jul 13, 2011 4:48 pm 
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How do I stop it. This just started a few months ago.

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tj white
 Post subject: Re: Oil in air cleaner
PostPosted: Wed Jul 13, 2011 6:05 pm 
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New pistons and rings.

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Dog trainer
 Post subject: Re: Oil in air cleaner
PostPosted: Wed Jul 13, 2011 7:24 pm 
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cleaver wrote:
It is called blow by..


You have pressure escaping past the rings and building up in the crankcase then escaping through the breather....(Blow BY).

tj white wrote:
New pistons and rings.


I have gotten by with a few with just rings...and the rest of the rebuild kit, Rod and Main berings etc. You won't know for sure if you need to replace pistons until you get into it. My philosophy is if I need to replace pistons I might as well have the block bored to the next size so tolerances are as tight as new.

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cleaver
 Post subject: Re: Oil in air cleaner
PostPosted: Thu Jul 14, 2011 3:22 pm 
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Location: Redfield SD
And if you tear it apart spend a little more and get the valves done..if you can have the valve guides machined for vitron seals instead of the umbrella seals.It will help oil control later on and keep the valves from building up carbon on them from the oil and exhaust.
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