Oil leak through breather ?
Outstanding HDF Member
Joined: Oct 2010
Posts: 2,706
Likes: 14
From: Near Frankenmuth, MI
Now here's a "SEARCH" link that will give the OP some more reading material on the subject: EVO, Oil, Breather
Thread Starter
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Novice
Joined: Oct 2009
Posts: 24
Likes: 0
Perhaps you meant to be helpful or just humorous? Not everyone uses the forum the same as you or me.
Now here's a "SEARCH" link that will give the OP some more reading material on the subject: EVO, Oil, Breather
Now here's a "SEARCH" link that will give the OP some more reading material on the subject: EVO, Oil, Breather
I am a Harley newbie and could not make sense of "top breather" and "bottom breather" dozens of other posts and could find nothing similar to my aftermarket breather POS.
Outstanding HDF Member
Joined: Oct 2010
Posts: 2,706
Likes: 14
From: Near Frankenmuth, MI
Dave,
Good to know you did some research too.
Personally, I have no problem with anyone starting their own discussion on any of the repeated topics, and anyone that would steer you away from doing that possibly has nothing better to add to the conversation ...LOL
Just don't ask "what oil to use" ... LOL
It's time to go riding...
Good to know you did some research too.
Personally, I have no problem with anyone starting their own discussion on any of the repeated topics, and anyone that would steer you away from doing that possibly has nothing better to add to the conversation ...LOL
Just don't ask "what oil to use" ... LOL
It's time to go riding...
Seasoned HDF Member
Joined: Nov 2006
Posts: 12,878
Likes: 5,449
From: la la land jerzey
harley is still stuck in the 19th century with oil leaks and motor breathers spilling oil on the ground even the twinkies leak oil from the air filter and it drips on the ground
being a new harley guy kind of sucks being that the motor company was and is so inept in how they engineered the bikes - and trying to grasp the fact the oil leaks and your rear tire have to live together
dont take a post like above in the wrong way about doing a search after a while reading and trying to keep an old bike alive, and like some answering many of the same questions you can get well crankie -- good luck with your new toy and any thing that could happen to it the guys ON THIS site can and will stick with you and you wont get bullshit answers from morons they are run off again good luck dude - jz
Seasoned HDF Member
Joined: May 2008
Posts: 21,173
Likes: 12,739
From: South Carolina
A bottom breather is a term used to describe the engines that had the breather outlet on the crankcase, like your engine has.
The bottom breather engines had a hose that went from the breather outlet on the crankcase to the carburetor/air filter support plate.
This system was used until 1993, when the motor company changed the breather configuration so that the engine had two breather outlets, located in the cylinder heads.
The top breather outlets are also the bolt holes for the bolts that support the carburetor/air filter support plate.
The pressure passes through these bolts (they are hollow) and then through a banjo shaped duct which directs the air/oil mist into the intake tract.
I can`t give any info on how a Twin Cam breather system operates, the newest bike I work on lately is my own (an`89) and all my riding friends have old bikes...
Road Master
Joined: Feb 2007
Posts: 781
Likes: 35
From: St Louis
Jeez, take a dump maybe the stick will come out too. Dont like the station, change the channel, don't like the topic, don't click on it.
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Stellar HDF Member
Joined: Jan 2013
Posts: 2,721
Likes: 103
From: St. Louis, MO
I`ll make a feeble stab at making sense out of it...
A bottom breather is a term used to describe the engines that had the breather outlet on the crankcase, like your engine has.
The bottom breather engines had a hose that went from the breather outlet on the crankcase to the carburetor/air filter support plate.
This system was used until 1993, when the motor company changed the breather configuration so that the engine had two breather outlets, located in the cylinder heads.
The top breather outlets are also the bolt holes for the bolts that support the carburetor/air filter support plate.
The pressure passes through these bolts (they are hollow) and then through a banjo shaped duct which directs the air/oil mist into the intake tract.
I can`t give any info on how a Twin Cam breather system operates, the newest bike I work on lately is my own (an`89) and all my riding friends have old bikes...
A bottom breather is a term used to describe the engines that had the breather outlet on the crankcase, like your engine has.
The bottom breather engines had a hose that went from the breather outlet on the crankcase to the carburetor/air filter support plate.
This system was used until 1993, when the motor company changed the breather configuration so that the engine had two breather outlets, located in the cylinder heads.
The top breather outlets are also the bolt holes for the bolts that support the carburetor/air filter support plate.
The pressure passes through these bolts (they are hollow) and then through a banjo shaped duct which directs the air/oil mist into the intake tract.
I can`t give any info on how a Twin Cam breather system operates, the newest bike I work on lately is my own (an`89) and all my riding friends have old bikes...
I personally like the factory system of drawing a vacuum on the crankcase as it burns the combustion byproducts, it's a PCV system (positive crankcase ventilation). Running only a breather allows the engine to breathe but nothing is drawing off the crankcase vapors thus in my experience the engine oil gets dirtier much faster and the engine has increased risk of getting gunked up with sludge. All modern cars since 1968 have had a PCV system factory for emissions purposes but it does keep the insides of the engine a lot cleaner of acids and other combustion byproducts compared to the old Road Draft systems (which is what you have if you go with a breather).
People have different opinions on what I wrote, guys commonly disable the factory PCV system on bikes an cars and run an old road draft system with a breather or an open hose (I personally would never run just a hose, I'd always put a little filter on it to keep the engine from sucking in dirty air which isn't common but isn't impossible). These systems tend to drip a little oil after a hard run, or when it sits a while and sumps as you experienced. I like to always run the factory PCV system on my vehicles and if I end up with a lot of oil in the intake or air cleaner I run a catch can.
Just another man's opinion.
Seasoned HDF Member
Joined: Sep 2010
Posts: 10,238
Likes: 799
From: Indiana
Now, what kind of OIL were you all recommending?
BWAAAAAAAAA......