Dyna Glide Models Super Glide, Super Glide Sport, Super Glide Custom, Dyna Glide Convertible, Super Glide T-Sport, Dyna Glide Police, Dyna Switchback, Low Rider, Street Bob, Fat Bob and Wide Glide.
Sponsored by:
Sponsored by:

Re-routed breather question

Thread Tools
 
Search this Thread
 
Old Jul 17, 2007 | 01:05 PM
  #1  
Limey's Avatar
Limey
Thread Starter
|
Tourer
Joined: May 2007
Posts: 344
Likes: 0
Default Re-routed breather question

Having fitted an SE air cleaner I've been wondering about re-routing the cylinder head breathers so that the oily gunk doesn't go into the intake which has got to improve the way the bike runs. Has anyone else done this? I've seen a little breather filter with 2 intakes that could be plumbed into the two breather pipes and there's enough room behind the standard cover to hide it so I'm sure it's do-able, just wondering if anyone's done this and if it's actually worth doing?
 
Reply
Old Jul 17, 2007 | 01:14 PM
  #2  
gman's Avatar
gman
Outstanding HDF Member
Joined: May 2006
Posts: 2,378
Likes: 1
From: Boise, Idaho
Default RE: Re-routed breather question

i had the oil misting problem also on my WG with a SE AC. I just leave the oil level about 1/2 way down on the dipstick, and this has fixed it. Might also look at a AN BS air cleaner the venting is deeper inside the backing plate and less likely to get into the AC housing. I have the AN on my Ultra and have no misting problems. Reducing the oil level is the most common fix to this common problem. Also check to see if your vent hoses/plastic tubes in the SE AChave a good connection.


















[IMG]local://upfiles/12616/C5344165BF5043EBA5ECD01B250F88A3.jpg[/IMG]
 
Reply
Old Jul 17, 2007 | 01:22 PM
  #3  
Limey's Avatar
Limey
Thread Starter
|
Tourer
Joined: May 2007
Posts: 344
Likes: 0
Default RE: Re-routed breather question

I don't think the breathers going into the intake is causing me a problem, I'm not sure how I'd know if it was. I'm just trying to make something better than it currently is.
 
Reply
Old Jul 17, 2007 | 02:17 PM
  #4  
gman's Avatar
gman
Outstanding HDF Member
Joined: May 2006
Posts: 2,378
Likes: 1
From: Boise, Idaho
Default RE: Re-routed breather question

when i used to build race cars, venting the engine thru the intake/carb in fact increased a bit of horsepower. it creates a negative vacuum in the crankcase versus just a breather like was done in olden times (which you are describing). IMHO, I wouldn't use a just a filter breather system unless you have some serious misting or blow-by problems that you're not willing to spend the $ to fix. The breather system as designed works well and i wouldn't recommend messing with it unless it is broke, and there are other ways to take care of a misting problem, which apparently you don't have. If it ain't broke, don't fix it!






[IMG]local://upfiles/12616/3FF5CD14FFDF4B77ABC535F7610074EE.jpg[/IMG]
 
Reply
Old Jul 18, 2007 | 02:11 AM
  #5  
philly59's Avatar
philly59
Intermediate
Joined: Jul 2007
Posts: 25
Likes: 0
From:
Default RE: Re-routed breather question

GDAY.MY 2005 SUPERGLIDE RAN GREAT WITH ARLEN NESS STG.1 BIG SUCK.I SWAPPED WITH A MATE TO FIX OIL CARRY OVER ON HIS HERITAGE.HE NOW HAS A GRIN FROM EAR TO EAR.MORE HORSEPOWER AND BIG SAVING IN FUEL CONSUMPTION.I NOW HAVE OIL CARRY OVER .HIGH FUEL USE WITH HIS S.E. AIR CLEANER.BREATHER HOLES IN CARB INDUCTION DO WORK.I RECOMMEND BIG SUCKER FOR SURE.
PHIL
 
Reply
Old Jul 23, 2007 | 10:13 AM
  #6  
friknjok's Avatar
friknjok
Advanced
Joined: Feb 2007
Posts: 52
Likes: 0
Default RE: Re-routed breather question

You could route the breather tubesto a separate filter and bypass the intake altogether. However, your current set up is not significantly altering the way your bike runs, if at all.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
pdave
Milwaukee Eight (M8)
24
Apr 11, 2019 04:17 PM
stmcmann
Touring Models
10
Sep 25, 2017 10:10 AM
Moochoff
Touring Models
13
Mar 30, 2015 02:43 PM
denn
Softail Models
0
Oct 3, 2010 05:24 PM
91springer
Softail Models
1
Apr 4, 2006 09:46 PM




All times are GMT -5. The time now is 12:16 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE