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Old 05-31-2010, 08:37 PM   #1 (permalink)
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Oil dripping from Air cleaner

Ok, I am finding oil under the air cleaner on the engine. Not alot, notice it after a long ride. I have a 2008 Ultra Classic. I am thinking maybe some engine blow off of excessive oil. Any suggestions. I have been checking the oil level and all is normal. Thanks.
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Old 05-31-2010, 09:09 PM   #2 (permalink)
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its blow-by from the crankcase! as the motor runs the crankcase build pressure and there are breathers that are connected to the crankcase that send the air with a little oil mixed in back into the air cleaner to reburn it! sometimes it will collect in the air cleaner ! So clean it and check it now and then! dont think there is anything to worry about!
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Old 05-31-2010, 09:12 PM   #3 (permalink)
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Old 05-31-2010, 10:54 PM   #4 (permalink)
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i have an 08 EGUC and if i put in more than 3.5 Qts of oil, i get it all over my air cleaner too. make sure cold, the oil is between needs and full and you will be fine. nothing to worry about. if you want a scooter that doesn't leak oil i heard those Ricers do nice, but you wouldn't catch me dead on one... lol
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Old 06-01-2010, 04:51 AM   #5 (permalink)
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I've had that happen a few times as well. I lowered my oil level to 1/4 above the add mark. Hasn't happened since.
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Old 06-01-2010, 05:56 AM   #6 (permalink)
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Quote:
Originally Posted by Leigh View Post
Ok, I am finding oil under the air cleaner on the engine. Not alot, notice it after a long ride. I have a 2008 Ultra Classic. I am thinking maybe some engine blow off of excessive oil. Any suggestions. I have been checking the oil level and all is normal. Thanks.
It's like Panhead said. in the picture you will see the breather tubes. They are connected to your rockerboxes and when the rockerbox vents the gasses vented are burned in the engine... or at least that is how I understand it.
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Old 06-01-2010, 09:37 AM   #7 (permalink)
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Drop your oil level a tad...should stop....
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Old 06-01-2010, 12:42 PM   #8 (permalink)
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Dropping the oil level helps, also running straight weight oil, and running dyno helps also. On quick revving larger dissplacement builds we also take the vents to atmosphere.
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Old 06-03-2010, 12:04 AM   #9 (permalink)
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Old 06-03-2010, 05:45 AM   #10 (permalink)
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What also can be done, is to drill the rocker support drain holes to .125".
That allows the separated oil to drain away much quicker.
Scott
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