Oil in air filter
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Stage I
Joined: Jul 2023
Posts: 1
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From: NH
Oil in air filter
This may have been addressed already, I am new and don't know how to look things up yet.
I have a 2022 Street Bob 114. Oil is coming out of the air filter down onto my engine. Harley says I am not reving the bike up enough before I shift. I am looking for anyone who might have already had this problem.
I have a 2022 Street Bob 114. Oil is coming out of the air filter down onto my engine. Harley says I am not reving the bike up enough before I shift. I am looking for anyone who might have already had this problem.
Seasoned HDF Member
Joined: Jun 2010
Posts: 9,332
Likes: 3,873
From: Upstate New York
Ive found it more accurate to check oil level hot as recommended in the owners manual. I run exactly 4.5 quarts in the system which brings the oil level to the mid point of the dipstick hot and barely touches the stick cold. Filling to the mid point cold can be too full hot.
Outstanding HDF Member
Joined: Mar 2018
Posts: 2,773
Likes: 2,261
From: Ft. Wayne IN
Above advice on keeping the oil a half quart below the full mark is good. I also have a DK Custom Products breather/catch can installed.
DK Custom External Breather System w/ Catch Can Harley Twin Cam (dkcustomproducts.com)
DK Custom External Breather System w/ Catch Can Harley Twin Cam (dkcustomproducts.com)
Road Master
Joined: Jun 2013
Posts: 1,058
Likes: 953
From: Sarasota Florida
Agree with above. The techs who do oil changes at the dealerships are the lowest skilled/trained mechanics in the service department. They must have put in too much oil. I have a 22 Streetbob and no oil drips out.
Stellar HDF Member
Joined: Feb 2017
Posts: 2,583
Likes: 1,029
From: East Flanders - Belgium
Welcome,
Like others said before, jusrt a oil overfill and it comes thrue the breathers in the airfilter, just install a external breather system and you are done, no more crap in the filter and engine in the future.
Like others said before, jusrt a oil overfill and it comes thrue the breathers in the airfilter, just install a external breather system and you are done, no more crap in the filter and engine in the future.
Seasoned HDF Member
Joined: May 2008
Posts: 21,175
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From: South Carolina
Originally Posted by larryraymond
Harley says
Last edited by Dan89FLSTC; Jul 6, 2023 at 09:06 AM.
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Seasoned HDF Member
Joined: Mar 2010
Posts: 38,608
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From: Honah Lee
This may have been addressed already, I am new and don't know how to look things up yet.
I have a 2022 Street Bob 114. Oil is coming out of the air filter down onto my engine. Harley says I am not reving the bike up enough before I shift. I am looking for anyone who might have already had this problem.
I have a 2022 Street Bob 114. Oil is coming out of the air filter down onto my engine. Harley says I am not reving the bike up enough before I shift. I am looking for anyone who might have already had this problem.
But banging the rev limiter will affect it a lot more. Low mileage also affects it slightly.
It won't hurt anything. They all do it a little. They blow out vent from pistons coming down since they both do it at the same time and a little blowby on power stroke on one cylinder from ring gaps.
That vapor pulls a little oil along. If bike sits a lot, you notice it more. It runs off inside surfaces of hose.
Only the air is drawn into engine from atmospheric pressure rushing in to vill the cylinder on the intake stroke. The oil falls out and drips on filter. Just helps it filter better.
Read post 4 here . Applies to oil and some thought.
https://www.hdforums.com/forum/2014-...oil-level.html
Last edited by Jackie Paper; Jul 6, 2023 at 09:12 AM.
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Novice
Joined: May 2023
Posts: 16
Likes: 2
From: Nashville, TN
Agree here as well. Firm beliver on the external breathers from DK. To me always check the oil hot. It should be halfway between the Add Qt. and Full. If your getting allot of oil on the filter it sounds like too much oil to me as well.
Seasoned HDF Member
Joined: Sep 2020
Posts: 8,157
Likes: 9,567
From: central NC
They puke a little sometimes. I did the 5K on my 22 FLT and four quarts filled to halfway on the diptsick hashmarks, and still put some fresh oil in the bottom of the aircleaner after 4K of riding.