Finally did my breather bypass (pics included)
#341
08-27-2016 | 06:25 AM
Stellar HDF Member
Joined: May 2015
Posts: 2,036
Likes: 278
From: mid Michigan
#342
08-27-2016 | 06:57 AM
Road Warrior
Joined: May 2013
Posts: 1,430
Likes: 55
From: Florida
All of you that don't "want that in my trans", what do you think is in the engine? That is primarily oil coming out those breathers. Anyway its the same stuff rotating around in your engine for thousands of miles. There is nothing in the breather that will hurt the transmission, whatsoever. You people seem to think the engine or trans can "taste" oil or some ****. Mixing tiny bit of oil with "redline" or whatever magic elixir you use is not going to cause an atomic reaction.
This breather bypass crap has turned many of you into fanatics. If your engine is blowing that much oil out the breathers then you are getting way too much blow by and have other problems. Although most of you will make a thousand excuses why that can't be the case in your engine.
This breather bypass crap has turned many of you into fanatics. If your engine is blowing that much oil out the breathers then you are getting way too much blow by and have other problems. Although most of you will make a thousand excuses why that can't be the case in your engine.
I'll add that we have humidity of 50%-99% every day of the year down here, Hot days/Cool nights water condenses inside the cases every night. You have to get the motor up to running temp to turn that moisture into vapor and blow it out the vent.
Last edited by Smokey Stover; 08-27-2016 at 07:01 AM. Reason: added photos/info
The following users liked this post:
jumpmasterjay (08-27-2016)
#343
08-27-2016 | 07:13 AM
Cruiser
Joined: Jan 2010
Posts: 203
Likes: 15
From: Victoria, Australia
The following users liked this post:
jumpmasterjay (08-27-2016)
#344
08-27-2016 | 03:57 PM
The 2017 M8 engine does Not route the blow-by into the transmission.
Here are a couple of photo's of the tiny stock filter element with the breathers venting the blow-by into the filter element, just like HD has been doing for years.
You can see the hoses coming off the breather bolts to a T connector, then the hose off the T goes into the back of the filter.
The following pics, showing what happens to a Twin Cam...no reason to expect that the M8 piston tops will have any different results.
Here are a couple of photo's of the tiny stock filter element with the breathers venting the blow-by into the filter element, just like HD has been doing for years.
You can see the hoses coming off the breather bolts to a T connector, then the hose off the T goes into the back of the filter.
The following pics, showing what happens to a Twin Cam...no reason to expect that the M8 piston tops will have any different results.
#345
09-04-2016 | 10:04 PM
Seasoned HDF Member
Joined: Sep 2007
Posts: 9,636
Likes: 1,544
From: Danbury CT
The following users liked this post:
DK Custom (09-07-2016)
#346
09-04-2016 | 10:15 PM
Seasoned HDF Member
Joined: Sep 2007
Posts: 9,636
Likes: 1,544
From: Danbury CT
The following users liked this post:
DK Custom (09-07-2016)
#347
09-05-2016 | 02:42 PM
Seasoned HDF Member
Joined: Sep 2007
Posts: 9,636
Likes: 1,544
From: Danbury CT
The following users liked this post:
DK Custom (09-07-2016)
#349
09-10-2016 | 01:14 PM
Road Captain
Joined: Jun 2014
Posts: 673
Likes: 29
From: NE Ohio
Here's an example of one of our breather set-ups that is simple to install,looks good, and works very well. If you really want to increase The Look,substituting our braided steel line for the rubber hose will make a noticeable difference. Just to give you some ideas:
.jpg)
I do have a question. First, I am running an SE Stage I inside the stock cover on my '14 Limited; you (Kevin) have already advised the kit DK-TC-BRT-CC is what I would want for my bike. With that A/C in mind, would the can dangling in this set-up move around enough to mar the finish on the engine? Would the stainless braided hose be stiffer & hold the can more rigidly?
#350
09-10-2016 | 02:16 PM
Grand HDF Member
Joined: Sep 2009
Posts: 3,756
Likes: 246
From: Green Country Oklahoma
I did my bypass kit about 10K miles with a little filter on the end and it's gets loaded with the thick dirty oil every few thousand miles, If you don't get on the bike very hard then it has very little benefit but if you like me ride the crap out of this will help keeping your engine cleaner. I saw an episode on Motor Week TV show proving the benefits of the catch can kit on some cars and Guss mentioned it if you don't drive hard then you won't see any benefit.