Oil breathers..........
Advanced
Joined: Jul 2007
Posts: 74
Likes: 0
From: Wichita, KS
RE: Oil breathers..........
I have not found a definitive answer to this question.
In researching this on the Internet, I have found four or five "for sure" reasons for oil in the A/C. Everything from overfull (more than half way up the stick when cold) to oil pump adjustment (official H-D service bullitin). Reed valves and other in-head fixes.
I have a K&N 3910 A/C and it won't allow the Kury "Bluegrass Breather Kit" (+/- $50 or so). This kit simply adds a foot or more of hose up under the tank to give the oil mist someplace to condense and run back down into the head when the bike is shut off.
Some have said this was fixed on later bikes, but my '07 does it, and my buddies '06 does it too. Mile after mile of 80+ MPH does it on mine. My oil level is about 80% up on the stick when cold, and I'm going to take out another half-pint.
I don't get a lot of oil, just a few drops on the saddlebag, and a rag wiped under the A/C always comes out with oil. Sometimes a drop or two will fall down onto the cam cover overnight after a longer ride.
It's annoying, and there are fixes, you just have to find out what works on your bike, either a Bluegrass-type kit if it will work with your A/C, or adjust the oil level, or slow down, or see if the dealer will adjust your oil pump (I'd rather live with it as-is) or one of the other $$ kits on the market that may or may not work.
Know this, there are no end the number of riders who have fixed it for good by just doing....
In researching this on the Internet, I have found four or five "for sure" reasons for oil in the A/C. Everything from overfull (more than half way up the stick when cold) to oil pump adjustment (official H-D service bullitin). Reed valves and other in-head fixes.
I have a K&N 3910 A/C and it won't allow the Kury "Bluegrass Breather Kit" (+/- $50 or so). This kit simply adds a foot or more of hose up under the tank to give the oil mist someplace to condense and run back down into the head when the bike is shut off.
Some have said this was fixed on later bikes, but my '07 does it, and my buddies '06 does it too. Mile after mile of 80+ MPH does it on mine. My oil level is about 80% up on the stick when cold, and I'm going to take out another half-pint.
I don't get a lot of oil, just a few drops on the saddlebag, and a rag wiped under the A/C always comes out with oil. Sometimes a drop or two will fall down onto the cam cover overnight after a longer ride.
It's annoying, and there are fixes, you just have to find out what works on your bike, either a Bluegrass-type kit if it will work with your A/C, or adjust the oil level, or slow down, or see if the dealer will adjust your oil pump (I'd rather live with it as-is) or one of the other $$ kits on the market that may or may not work.
Know this, there are no end the number of riders who have fixed it for good by just doing....
Road Warrior
Joined: Feb 2005
Posts: 1,296
Likes: 1
From:
RE: Oil breathers..........
ORIGINAL: sleepyjim
I got oil coming from the air brether, looking for something to rerout the oil brething, who has what? any pics?
I got an 07 SG, 103"..............
Thanks
SJ
I got oil coming from the air brether, looking for something to rerout the oil brething, who has what? any pics?
I got an 07 SG, 103"..............
Thanks
SJ
Ultimate HDF Member
Joined: Feb 2006
Posts: 5,939
Likes: 3
From: TX
RE: Oil breathers..........
Do some searching... I've posted several different options. Here are a few pics I still had on the PC. Depending on what backplate you have, the specifics may vary, but the fundenentals are the same.
Another option would be to simply buy a Doherty Power Pack w/Power Vents.
S/E plate pics...
[IMG]local://upfiles/8665/EC1041BE9033407EAD22306F705AA24B.jpg[/IMG]
[IMG]local://upfiles/8665/0AD75A24E9C54137AFFB35E180932F9A.jpg[/IMG]
[IMG]local://upfiles/8665/437997C9F8B6408797D41C4E52C7E679.jpg[/IMG]
[IMG]local://upfiles/8665/715B34A0BB8440C7B0B430901A8D0DDC.jpg[/IMG]
[IMG]local://upfiles/8665/590AA3DCB7B84B67BB224A5ADE84BD49.jpg[/IMG]
Another option would be to simply buy a Doherty Power Pack w/Power Vents.
S/E plate pics...
[IMG]local://upfiles/8665/EC1041BE9033407EAD22306F705AA24B.jpg[/IMG]
[IMG]local://upfiles/8665/0AD75A24E9C54137AFFB35E180932F9A.jpg[/IMG]
[IMG]local://upfiles/8665/437997C9F8B6408797D41C4E52C7E679.jpg[/IMG]
[IMG]local://upfiles/8665/715B34A0BB8440C7B0B430901A8D0DDC.jpg[/IMG]
[IMG]local://upfiles/8665/590AA3DCB7B84B67BB224A5ADE84BD49.jpg[/IMG]
Ultimate HDF Member
Joined: Feb 2006
Posts: 5,939
Likes: 3
From: TX
RE: Oil breathers..........
Here's something similar using a Geralomy Backplate...
[IMG]local://upfiles/8665/959A8D46BAC94FAC83539FC4246E1144.jpg[/IMG]
[IMG]local://upfiles/8665/0B0037A0C46149AABBB9BFB7A1CDF5A4.jpg[/IMG]
[IMG]local://upfiles/8665/1E1E688052A6461DB11E5CDF8698508D.jpg[/IMG]
[IMG]local://upfiles/8665/959A8D46BAC94FAC83539FC4246E1144.jpg[/IMG]
[IMG]local://upfiles/8665/0B0037A0C46149AABBB9BFB7A1CDF5A4.jpg[/IMG]
[IMG]local://upfiles/8665/1E1E688052A6461DB11E5CDF8698508D.jpg[/IMG]
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Cruiser
Joined: Feb 2008
Posts: 166
Likes: 0
From: California Desert
RE: Oil breathers..........
I understand the reasoning behind running your oil at a level lower than full but I always run mine full in my '02 UC. I keep it full because of the cooling aspect of the oil. I could be wrong but I believe that more oil means more heat taken out of the engine. I guess I'm just lucky but I haven't had any of the oil dripping problems. I will have to clean a little out of the filter every 2500 miles but it is not excessive.
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Tourer
Joined: Sep 2007
Posts: 296
Likes: 1
From: South Carolina
RE: Oil breathers..........
+1 on the Doherty system. My 04 Ultra doesn't have this problem; however, both my 01 Heritage and my father's 01 EG spew oil if driven fast for extended periods. Put in the Doherty system and not a single drip since. Works FANTASTIC!