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Oil dripping from air filter

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Old Mar 4, 2009 | 07:56 PM
  #11  
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This is a condition referred to as blow-by. I was able to have this problem solved with replacement of the butterfly gasket on the intake.
 
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Old Mar 4, 2009 | 09:19 PM
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Thanks everone for all the info. I will look into the butterfly gasket as I would like to solve the problem once and for all.
 
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Old Mar 4, 2009 | 11:09 PM
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What kind of oil filter did they use?

Hopefully (and especially with the EVO engines) they didn't use a newer 5 micron filter, or even a 10 micron filter for that matter.

The two filters shown below, either short or long depending on your specific application, is what they should be using....

And also, like others have mentioned, make sure the hot oil level is below the full mark. The cold oil level should even be lower, usually about halfway between the 'half fill and fill mark'.

 
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Old Mar 5, 2009 | 07:36 PM
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It looks like they used the 30 micron oil filter. I went for a 20 mile ride tonight and no oil blew out. That was a good sign.
 
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Old Oct 4, 2009 | 10:44 AM
  #15  
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Originally Posted by Foot Patrol
It looks like they used the 30 micron oil filter. I went for a 20 mile ride tonight and no oil blew out. That was a good sign.
Did you change the butterfly gasket ?
 
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Old Oct 5, 2009 | 08:58 AM
  #16  
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yea they put 3.5 qts in so they can charge for the 4th qt. even if it don't need it.
did they give U the other 1/2 qt? to top it off later.
 
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Old Oct 5, 2009 | 09:17 AM
  #17  
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Originally Posted by oct1949
yea they put 3.5 qts in so they can charge for the 4th qt. even if it don't need it.
did they give U the other 1/2 qt? to top it off later.
Jst one more reason to do it yourself !
 
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Old Mar 1, 2015 | 08:54 AM
  #18  
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Same problem on my 91 Sporty1200 Shorty carb and S&S ail cleaner, tried piece of
heavy towel on lower part of cleaner, did not work, had to constantly clean air Clnr
or could not count on bike running as it should. and periodic pulling plugs showed engine running a bit rich due to oil soaked air cleaner.
So I got two hoses with one end formed at 90 degrees from H-D, fit over breather fittings and other end into old medicine bottle, drilled a number of holes
into bottle only half way around the upper half of bottle and oil collected into bottom
yet the crankcase is still vented into the atmosphere, cleaned r side of engine, went
a hundred and came back, a bit of oil in bottle and engine still **** 'n span clean
 
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Old Mar 1, 2015 | 09:07 AM
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Holy Necro-Bump!!!!!
 
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Old Mar 2, 2015 | 10:50 AM
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Originally Posted by Foot Patrol
I have a 1997 Fatboy that I recently bought with 43K miles on it. I had the dealer service the bike including cleaning the air filter. During a ride yestereday I noticed that I had oil dripping from the air filter. They may have put oil on it after it was cleaned. My owners manual says not to put air filter oil on it. Will this hurt the performance and should I reclean it myself?

I can not see any other reason why I would have oil coming out of the air filter. Any ideas here?

Foot
Hey Foot, you could go with a External Breather and this would eliminate the chances of blow-by. Also, below is a link on Oil drips, blow-by and What is really the correct oil level. Hope this helps you out
https://www.hdforums.com/forum/oil-a...oil-level.html

Kelsey
 
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