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Oil leaking from air filter - Sportster 07

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Old 09-30-2011, 03:56 AM
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Default Oil leaking from air filter - Sportster 07

Hi to everyone , I am new to this Harley thing . Just bought my first bike in 40 years and got my license last week. Apart from a sore **** the only problem I found so far is oil seaping out of the aircleaner , after pulling it off it is definately coming out there as the air filter is covered in oil at the bottom , it has spewed a bit out as it is all over the side of the engine below the air cover. I have picked up some threads from 2007 and they mention this can happen (nature of the beast - but it should not ) particularly if you ride it above 70mph for a while . I have only been up to 70 for a combined period of about 5 minutes over the last 3 months - I ride at speed limits mostly about 40-50. Can anyone advise what I should do here - do i need to worry about this ?
I have a 2007 injected Sportster 1200r , it only has 5,000 miles on the clock

all advice appreciated.
 
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Old 09-30-2011, 04:52 AM
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You most likely have too much oil in it. Check oil level with your bike hot and on the kick stand. Oil level should not be above 1/2 way up dipstick. i keep mine between 1/4 & 1/2.
When you change oil, you should only need to put 2.8 quarts back in, and that includes the 3 or 4 ounces you put in the oil filter.
 

Last edited by Cazimere; 09-30-2011 at 04:56 AM.
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Old 09-30-2011, 08:44 AM
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Originally Posted by Cazimere
You most likely have too much oil in it. Check oil level with your bike hot and on the kick stand. Oil level should not be above 1/2 way up dipstick. i keep mine between 1/4 & 1/2.
When you change oil, you should only need to put 2.8 quarts back in, and that includes the 3 or 4 ounces you put in the oil filter.
+1 Yep thats the ticket. I had the same problem until I dropped the oil level down to below 1/2 stick.
 
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Old 09-30-2011, 09:03 AM
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As stated - oil level is likely too high. The oil comes from the two hoses attached to the tops of the cylinder heads, they are crankcase ventilation. All piston engines leak some combustion gases past piston rings. These gases pressurize the crankcase and pick up engine oil mist as they leave via the crankcase vent. The crankcase vent in this case runs right into the air intake on your Sportster, and the oil accumulates on/in the filter. Eventually it drips. An excessive amount of oil contributes to the mist in the crankcase as it splashes around the gears and what not. Lots of folks with Sportys have reported this same thing. Big diesels usually have filters that recapture this oil mist and put it back in the crankcase before it is vented back into the intake.

 

Last edited by schwingding; 09-30-2011 at 11:05 AM.
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Old 09-30-2011, 10:56 AM
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Not sure about Harleys, but on a jap bike I had if oil was leaking out of the filter it just meant that there was too much oil in the bike. Id bet thats your problem
 
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Old 09-30-2011, 11:16 AM
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Does anyone even use the search function anymore?
 
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Old 09-30-2011, 11:55 AM
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Originally Posted by Scuba10jdl
Does anyone even use the search function anymore?
Or for similar threads from the past 2-3 days?
https://www.hdforums.com/forum/sport...nt-of-oil.html

 
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Old 09-30-2011, 12:19 PM
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Originally Posted by Cazimere
You most likely have too much oil in it. Check oil level with your bike hot and on the kick stand. Oil level should not be above 1/2 way up dipstick. i keep mine between 1/4 & 1/2.
When you change oil, you should only need to put 2.8 quarts back in, and that includes the 3 or 4 ounces you put in the oil filter.
Hi guys , thanks for the messages - I checked my oil level hot and it is bang on half way so am assuming I probably have now got it to the level it should be. I will take it from what all have said it is not a real problem and there would be no need to take it to a dealer !!
 
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Old 09-30-2011, 05:49 PM
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Pull the air filter off and check to make sure one or both of the orings that seal the breathers to the air filter are not missing.
 

Last edited by Blackcherry Low; 09-30-2011 at 06:29 PM.
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Old 09-30-2011, 06:24 PM
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Originally Posted by mondo
Hi guys , thanks for the messages - I checked my oil level hot and it is bang on half way so am assuming I probably have now got it to the level it should be. I will take it from what all have said it is not a real problem and there would be no need to take it to a dealer !!
I would be worried if there wasn't a little oil residing at the bottom of my air box.
 


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