Water and oil coming out breather
#41
11-07-2017, 12:32 PM
Supporter
#42
11-07-2017, 12:58 PM
Join Date: Jan 2011
Location: Haslet Texas
Posts: 21,008
Likes: 0
Received 4,361 Likes
on
1,953 Posts
Update:
I pulled off the right tank today to disconnect the breather and when I did there was no milky stuff in there so I sprayed a bunch of brake cleaner into the breather hose and hit it with a lot of air to clean out the breather...no milky stuff.
I'm at a loss at where it's forming.
The only thing I can guess is that as the breather hose cools off it pulls in cold air and that air has high humidity which mixes with the oil residue in the hose and that is the source of the milky mess.
At any rate I'm done worrying about it.
Thanks for everyone's help!!!!!!!!
I pulled off the right tank today to disconnect the breather and when I did there was no milky stuff in there so I sprayed a bunch of brake cleaner into the breather hose and hit it with a lot of air to clean out the breather...no milky stuff.
I'm at a loss at where it's forming.
The only thing I can guess is that as the breather hose cools off it pulls in cold air and that air has high humidity which mixes with the oil residue in the hose and that is the source of the milky mess.
At any rate I'm done worrying about it.
Thanks for everyone's help!!!!!!!!
#43
11-07-2017, 05:17 PM
Seasoned HDF Member
[QUOTE=Spider0408;16806506]Crankcase breather and head breather it's the same purpose. They're there to allow bypass gases to escape the crankcase where they originate. That's why they're called crankcase breather systems. This is from an official Harley Davidson 2009 Service Manual.
Water vapor is a normal by-product of combustion in any
engine. During cold weather operation, some of the water vapor
condenses to liquid form on the cool metal surfaces inside the
engine. In freezing weather this water will become slush or ice
and, if allowed to accumulate too long, may block the oil lines
and cause damage to the engine.
If the engine is run frequently and allowed to thoroughly warm
up, most of this water will become vapor again and will be
blown out through the crankcase breather.
If the engine is not run frequently and allowed to thoroughly
warm up, this water will accumulate, mix with the engine oil
and form a sludge that is harmful to the engine.
They call it a "crankcase breather".
They refer to water vapor from combustion only.
They make no mention of "humidity" in the air.
Now, you can believe whatever you want. All I intended to do was to pass
along what the Harley Davidson Engineers say in their manual regarding your issue. I accept their expert explanation as fact. [FONT=Arial][SIZE=1][COLOR=#0000ff]
well that's just fine you read a >>>> 2009 <<<<< Harley service book I guess I missed the part - Harley was still making evos in 09
BUT that is not the point - your quote - Now, you can believe whatever you want
explain how the top vented engine in this case, that its air directed into the open air filter,
(( that is not sealed BTW )) that air filter as it is open to the atmosphere -- that its all combustion and not the airs humidity in play and not a factor
better yet have a picture of the sealed air filter - after 50 years of working on the machines HD engineers would be the last bunch I would ask a question
your chasing a physics experiment and not real like experiences - and most car engines are sealed better then they were -- but the humid air it takes in is the reason Harleys spit goo
texas was chasing the open to the air hoses and the hot air leaving the engine when its parked after a ride - it is all at the end of the hoses, the moist air in the garage its parked in is causing his issue not the fuel
Water vapor is a normal by-product of combustion in any
engine. During cold weather operation, some of the water vapor
condenses to liquid form on the cool metal surfaces inside the
engine. In freezing weather this water will become slush or ice
and, if allowed to accumulate too long, may block the oil lines
and cause damage to the engine.
If the engine is run frequently and allowed to thoroughly warm
up, most of this water will become vapor again and will be
blown out through the crankcase breather.
If the engine is not run frequently and allowed to thoroughly
warm up, this water will accumulate, mix with the engine oil
and form a sludge that is harmful to the engine.
They call it a "crankcase breather".
They refer to water vapor from combustion only.
They make no mention of "humidity" in the air.
Now, you can believe whatever you want. All I intended to do was to pass
along what the Harley Davidson Engineers say in their manual regarding your issue. I accept their expert explanation as fact. [FONT=Arial][SIZE=1][COLOR=#0000ff]
well that's just fine you read a >>>> 2009 <<<<< Harley service book I guess I missed the part - Harley was still making evos in 09
BUT that is not the point - your quote - Now, you can believe whatever you want
explain how the top vented engine in this case, that its air directed into the open air filter,
(( that is not sealed BTW )) that air filter as it is open to the atmosphere -- that its all combustion and not the airs humidity in play and not a factor
better yet have a picture of the sealed air filter - after 50 years of working on the machines HD engineers would be the last bunch I would ask a question
your chasing a physics experiment and not real like experiences - and most car engines are sealed better then they were -- but the humid air it takes in is the reason Harleys spit goo
texas was chasing the open to the air hoses and the hot air leaving the engine when its parked after a ride - it is all at the end of the hoses, the moist air in the garage its parked in is causing his issue not the fuel
Thread
Thread Starter
Forum
Replies
Last Post