Harley Davidson Forums

Loading


Hello

Guest

Welcome to the harley davidson forum. Join our discussion today for FREE!

CREATE ACCOUNT

Membership Benefits

Get your questions answered by harley davidson community gurus and industry experts. Exchange your experience with another members. Access full features forum. Get a members discounts for your harley parts & accessories.

OIL leaking from Breather vent

Oil

Reply
 
Thread Tools Display Modes
Old Aug 17th, 2008, 12:20 AM     #1
New Family
Ride: 1991 Heritage Softail Classic
 
Join Date: Aug 16th, 2008
Posts: 2
dontask is an unknown quantity at this point
OIL leaking from Breather vent

I have a Hearitage Softail CLassic 1991, this year we have not done much riding weather been really rainy. When I went to start her she started right up then I notice oil pouring out of the oil breather vent tube. It ran all three qts out. Heads did not seem hot to the touch. Filled oil tanks and started it up again I guess I hoped as it the engine heated up the clog might dislove. Nope it still does it right after engine starts. I was thinking about running the breater hose back up to the tank and let the engine run and get up to temp. I was also going to add some oil to each jug. Any idea what is the problem I just put a (EDIT) load on money into last year over the winter.

Last edited by glider; Aug 17th, 2008 at 08:10 AM. Reason: grammar
dontask is offline   Reply With Quote
Old Aug 17th, 2008, 01:08 AM     #2
Moderators
Ride: '11 FLSTC (Heritage Softail Classic)
 
TQuentin1's Avatar
 
Join Date: Apr 4th, 2008
Location: Summerwood in Humble, TX
Posts: 4,343
TQuentin1 is on a distinguished road
Re: OIL leaking from Breather vent

Quote: Originally Posted by dontask View Post
I have a Hearitage Softail CLassic 1991, this year we have not done much riding weather been really rainy. When I went to start her she started right up then I notice oil pouring out of the oil breather vent tube. It ran all three qts out. Heads did not seem hot to the touch. Filled oil tanks and started it up again I guess I hoped as it the engine heated up the clog might dislove. Nope it still does it right after engine starts. I was thinking about running the breater hose back up to the tank and let the engine run and get up to temp. I was also going to add some oil to each jug. Any idea what is the problem I just put a **** load on money into last year over the winter.
Is your EVO stock, or have you had things done to it. Please itemize for us what was done this past winter. Did you have the nose cone off (cam job, cam shaft bearing, etc.)? Where I am going is that the breather valve may be mis-timed.

Itemize all the Winter jobs, please.

TQ
TQuentin1 is offline   Reply With Quote
Old Aug 17th, 2008, 09:37 AM     #3
Account Removed
Ride: 1981 FLH Shovel
 
Join Date: Apr 21st, 2008
Location: Maryland
Posts: 341
My Mood: My Mood
Fisher is an unknown quantity at this point
Re: OIL leaking from Breather vent

While Evo's will puke after sitting and Softails wet sump bad I haven't seen one puke 3 quarts.Like he said what work was performed?And who did the work?
Fisher is offline   Reply With Quote
Old Sep 2nd, 2008, 12:25 AM     #4
New Family
Ride: 1992 Dyna Glide
 
Join Date: Sep 2nd, 2008
Posts: 1
zack6984 is an unknown quantity at this point
Re: OIL leaking from Breather vent

I have a 1992 Dyna, just got back from 1200 mile trip and it used almost 2 quarts of oil. it too was slimed all over the carburator side of the bike. dripping from the air filter. about 2500 miels ago I had heads polished and ported, new cam and new Mikuni placed. Have after market ignition as well. I need some advice as well like this guy.
zack6984 is offline   Reply With Quote
Old Sep 2nd, 2008, 09:10 AM     #5
Wise Member
Ride: 0
 
Join Date: Jun 21st, 2007
Posts: 26,212
My Mood: My Mood
glider is on a distinguished road
Re: OIL leaking from Breather vent

Oil level overfilled?

Breathers are obviously working but is the breather gear timed correctly?

Blow by in the engine?
glider is offline   Reply With Quote
Old Sep 2nd, 2008, 09:28 AM     #6
Play The Throttle
Ride: 2005 Ultra Classic
 
Jammr's Avatar
 
Join Date: Aug 26th, 2008
Location: South Jersey, NJ
Posts: 200
My Mood: My Mood
Jammr is an unknown quantity at this point
OIL leaking from Breather vent

Quote: Originally Posted by Fisher View Post
While Evo's will puke after sitting and Softails wet sump bad I haven't seen one puke 3 quarts.Like he said what work was performed?And who did the work?
My '84 EVO will puke after sitting for more than a few weeks, but never that much! After warm up, all is well. I'll talk to my mechanic, a 35 year HD man, and get back.

Quote: Originally Posted by Jammr View Post
My '84 EVO will puke after sitting for more than a few weeks, but never that much! After warm up, all is well. I'll talk to my mechanic, a 35 year HD man, and get back.
I spoke to "He who knows all" and he said it sounded to him like a sheared oil pump key. He also explained that if that key is sheared, it is caused by a more serious problem such as a scavenger gear bearing failure. Good luck.

Last edited by glider; Jun 7th, 2009 at 09:10 PM. Reason: merged
Jammr is offline   Reply With Quote
Old Sep 2nd, 2008, 10:53 AM     #7
Moderators
Ride: '11 FLSTC (Heritage Softail Classic)
 
TQuentin1's Avatar
 
Join Date: Apr 4th, 2008
Location: Summerwood in Humble, TX
Posts: 4,343
TQuentin1 is on a distinguished road
Re: OIL leaking from Breather vent

Quote: Originally Posted by dontask View Post
I have a Hearitage Softail CLassic 1991, this year we have not done much riding weather been really rainy. When I went to start her she started right up then I notice oil pouring out of the oil breather vent tube. It ran all three qts out. Heads did not seem hot to the touch. Filled oil tanks and started it up again I guess I hoped as it the engine heated up the clog might dislove. Nope it still does it right after engine starts. I was thinking about running the breater hose back up to the tank and let the engine run and get up to temp. I was also going to add some oil to each jug. Any idea what is the problem I just put a (EDIT) load on money into last year over the winter.
Dontask,

See my post above (#2). Have not heard back. Please give us some idea of what has been done to the bike.

TQ
TQuentin1 is offline   Reply With Quote
Old Sep 2nd, 2008, 05:56 PM     #8
New Family
Ride: 2009 FLHRCI
 
TennesseeJed's Avatar
 
Join Date: Sep 1st, 2008
Posts: 7
My Mood: My Mood
TennesseeJed is an unknown quantity at this point
Re: OIL leaking from Breather vent

dont they all puke up oil after setting for a while? my softail allways did puke up what seems 1/2 qt oil when it starts after it sat for a while. BTW, I still waiting for my new ride to show up @ the dealer.
TennesseeJed is offline   Reply With Quote
Old May 21st, 2009, 11:32 PM     #9
Start The Engine
Ride: 1999 Fatboy
 
Join Date: May 21st, 2009
Location: Campton, NH
Posts: 11
My Mood: My Mood
White Mts. Rider is an unknown quantity at this point
Re: OIL leaking from Breather vent

I bought a 1999 Fat Boy last year that has the 80" EVO. The bike had 1,553 miles on it when I bought it and after riding it for roughly 1,500 more miles I decided that I would change the 20-50 Harley oil that was in it, to Amsoil 20-50 synthetic. I rode the bike another 1,000 miles or so and now it pushes some oil out the breather vent, I mean a light mist constantly while riding. My question is, did I change to the synthetic to soon be for letting the engine "break in" or should I be looking at some thing else?

Last edited by White Mts. Rider; May 21st, 2009 at 11:33 PM. Reason: spelling
White Mts. Rider is offline   Reply With Quote
Old May 22nd, 2009, 07:37 AM     #10
Wise Member
Ride: 0
 
Join Date: Jun 21st, 2007
Posts: 26,212
My Mood: My Mood
glider is on a distinguished road
Re: OIL leaking from Breather vent

Never "too soon". Possibly the head areas may need some attention being it sat for a while. Evo's did mist out the vents being a bottom breather a bit so unless it's excessive where it drips on the engine, it shouldn't be a problem. There's a product called "the fix" that some used with success to eliminate the problem that promotes better oil return .
You can also run the vent lines down to vent out the bottom of the bike and another way is to use a catch can that collects any oil vapors that accumulate as a result of venting instead of gathering in the air cleaner.

Hayden Enterprise ----
glider is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
oil vent from fill cap GSM2 Oil 4 Oct 4th, 2010 07:50 PM
Tank vent pcbunn Dyna Models 2 Aug 14th, 2010 01:09 AM
Heavy Breather - space between breather and tank oiler Touring Models 0 Jul 23rd, 2010 08:59 AM
Stage one crank vent Timman Engine, Fuel and Exhaust 5 Apr 29th, 2010 10:07 PM
crankcase vent rjw922 Dyna Models 3 Jul 23rd, 2009 11:13 AM