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2015 Polaris xp 900 and I have a friend with a 2013 Polaris 900 xp with both have substanial oil in the air box and down stream of the air box to the throttle body. Oil appears to be coming up though oil breather. Has anybody had this or a similar problem? Both units have less than 2000 miles.
thanks rip

 

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Normally means your rings are bad. Comes from dust getting by your air filter, using a k&n or uni filter. It also happens from overheating your ranger a few times. My old 800 is in the shop for just those reasons, and the symptoms were the same as your describing!
 

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I checked my air filter today and noticed that there was a little oil on top of filter also. Mine has about 750 miles on it and not even 70 hours yet. It wasn't a lot of oil but did look like it was coming from the small line connected to the side of the air box. Its got me wondering whats the deal. My engine overheated once soon after I got it and was probably 1.5 qts low on antifreeze but hasn't done it again sense. Hottest Ive seen it sense was 206 once but usually 204. Now someone post that it could be rings and early signs of engine problems.....great just what I need. Monday is starting early. lol
 

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2015 Polaris xp 900 and I have a friend with a 2013 Polaris 900 xp with both have substanial oil in the air box and down stream of the air box to the throttle body. Oil appears to be coming up though oil breather. Has anybody had this or a similar problem? Both units have less than 2000 miles.
thanks rip

You may very well have a problem, but you might just do a compression check even it you need a dealer to do it and get a pulse on overall engine health. The amount of oil you are describing sounds serious, but a cheap test may be worth it and outcome will point you in some direction for next steps.
 

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Been sitting here thinking about this and i do have a question if someone can answer it. Say your air filter is pretty dirty, and being where that small hose is located on the filter box, could there be enough suction from the intake side that it could pull some oil up that hose. Just throwing that out there. I have no idea if it is possible or not. My theory would be a very dirty filter and high rpm. You know I said mine had a little oil on the filter and I did take the filter out and blow it out (i know big no no to some) and it was dirty but not plugged up by any means but I did chase a cow the other night with some pretty high rpm's.

Could it happen?????? Beats me
 

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Is that hose a oil breather or is it a blow by???? Was reading in another forum and someone called it the blow by. Kinda like diesel engines have.
 

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Curiosity got the best of me so I had to go take a closer look. My filter isn't soaked with oil it was just around the top lid of the box and in my intake going to the carb. Sucks cause it was about 25 percent covered in a tacky layer of oil with dirt in the hose to the carb. Dang it on a piss poor intake box. Cleaned it all up and put it back together. The little hose that is the culprit must be a blow by. Put your finger over the hose but leave a little space like you would with a garden hose and you can feel the air coming out. I'll be ordering a new air filter possibly the uni filter and seeing if that works better. I did go ahead and put a very thin layer of grease on the top of the outside of the filter to see if that helps till I get the new filter. And be changing the oil tonight. Hopefully caught it before it did much damage to the pistons.
 

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Curiosity got the best of me so I had to go take a closer look. My filter isn't soaked with oil it was just around the top lid of the box and in my intake going to the carb. Sucks cause it was about 25 percent covered in a tacky layer of oil with dirt in the hose to the carb. Dang it on a piss poor intake box. Cleaned it all up and put it back together. The little hose that is the culprit must be a blow by. Put your finger over the hose but leave a little space like you would with a garden hose and you can feel the air coming out. I'll be ordering a new air filter possibly the uni filter and seeing if that works better. I did go ahead and put a very thin layer of grease on the top of the outside of the filter to see if that helps till I get the new filter. And be changing the oil tonight. Hopefully caught it before it did much damage to the pistons.
There is a company ( UTV crap/ inc I think) that makes an aluminum spacer that sits on top of the air filter, that creates more compression on the filter to help seal it off.
 

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Yes seems like I read that earlier. Was wondering if I should still use the OEM filter with the spacer or go with the uni filter. Or do all filters not seal up good with the factory box.
 

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Yes seems like I read that earlier. Was wondering if I should still use the OEM filter with the spacer or go with the uni filter. Or do all filters not seal up good with the factory box.
I'm not sure, I would lean toward trying the UNI, and see if the sealing area is better than oem. If not and you continue to get dirt by the filter, then try the spacer.

I looked them up (UTV INC) they only show one for the RZR on the website, but I think they make one for the Ranger.
 

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ok. thanks toxic. i'm probably going to try the Uni filter. Still don't understand why there would be much oil going to the throttle body. Again its not a lot of oil but mix it with some dirt and it makes it look a whole lot worse then what it really is. But the fact is that there is way to much dirt getting by the filter. Weather it be getting through the filter or around it. Don't see any cracks or anything so makes me think its not sealing up good. The filter that is.

Did a little looking around and am surprised that i can't seem to find any aftermarket air boxes that would take care of the whole problem.

Besides a snorkel which i'm not doing b/c of full cab.
 

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Curiosity got to me too. I checked out my filter on my 14' 900 XP and did find a little oil on the edge of the filter and a trace on the filter housing end of the intake to throttle body hose. No dirt or dust though. I bought this machine new and it is just 2 months out of warranty and I have installed a UNI snow foam relocation filter behind the drivers seat (just like the Polaris relocation but with more surface are on the filter cone than the polaris box). Also changed my paper filter to a K&N 2 months ago. It's been snowing here since then so no dust issues but that trace of oil from the breather/vent/by-pass hose makes me wonder about the amount of suction on the engine side of the filter housing could create a Venturi and draw oil that is misted in the air space inside the motor. I checked my oil today as well and it is right up at the full mark.
 

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I think the breather hose could be in a much better position like under the filter and not so close to throttle body hose.
 

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The Polaris filters do a great job, but I always put a thin coat of grease on the rubber part of the filter and on the upper part of the air box. I have done this for years and it works great. If you do go to a UNI filter, use the maxxima fft oil, no dust will get through that stuff, it's super sticky.
 

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I have 200hrs on my 14' 900 Crew. I live on a ranch and drive 100% on dirt roads. I just went out and checked my filter and saw no oil on the filter itself. I then looked inside the top half of the air box and saw no dust or debris. I did however notice the vent tube weeping a very small amount of oil into the air box. It looks to me a small amount of oil is normal?
 

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I thought that would be normal also. I took my throttle body off to look in the intake manifold and I have a bunch of oil in there.
 
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