Notices
Milwaukee Eight (M8) 2017 and up M8 Air and Liquid Cooled discussion

Strange "deposit" found in air cleaner

 
  #11  
Old 01-09-2019, 04:57 PM
lp's Avatar
lp
lp is offline
Ultimate HDF Member
Join Date: Jan 2006
Location: Charleston, SC
Posts: 9,439
Received 1,046 Likes on 683 Posts
Default

just read the post above this one and you will have your answers.
 
  #12  
Old 01-09-2019, 04:58 PM
Fullbore55
Fullbore55 is offline
Road Master
Join Date: Sep 2016
Location: CC Tx
Posts: 1,008
Received 155 Likes on 136 Posts
Default

Originally Posted by Greg Di View Post
Thanks guys. I was fearing it was new oil transfer issue on the M8s I discovered.

Makes sense that it's water since I've gotten stuck in the rain a lot recently and forget to put the sock on.
The moisture is mixed in the oil with hot gas that comes out of breather tubes. Supposed to be fed back into intake to be burned in the engine. Rain not the source of the moisture. That moisture is just a byproduct of the combustion process.

Some people incorporate a bypass, so this goop is either discharged outside the AC housing or captured in a catch-can. Many posts on this, several with pics.
 
  #13  
Old 01-09-2019, 05:31 PM
jlombard
jlombard is offline
Supporter
Join Date: Aug 2012
Location: Arkansas
Posts: 73
Likes: 0
Received 8 Likes on 7 Posts
Default

Same stuff I drain out of my catch-a-can.
 
  #14  
Old 01-09-2019, 10:02 PM
Greg Di's Avatar
Greg Di
Greg Di is offline
Senior Rider
Thread Starter
Join Date: Oct 2012
Location: Canton, GA
Posts: 488
Received 33 Likes on 22 Posts
Default

I'm going to rig a catch can inside the AC.
 
  #15  
Old 01-09-2019, 10:22 PM
Fullbore55
Fullbore55 is offline
Road Master
Join Date: Sep 2016
Location: CC Tx
Posts: 1,008
Received 155 Likes on 136 Posts
Default

Originally Posted by Greg Di View Post
I'm going to rig a catch can inside the AC.
Thats what I did.
 
  #16  
Old 01-09-2019, 10:56 PM
FatBob2018
FatBob2018 is offline
Road Warrior
Join Date: Nov 2017
Location: Texas
Posts: 1,711
Received 488 Likes on 352 Posts
Default

Originally Posted by Greg Di View Post
I'm going to rig a catch can inside the AC.
Is that a good idea? That empty space is an important part of the breathing system; wouldn't taking up that space be effectively the same as having a more restrictive air cleaner?
 
  #17  
Old 01-10-2019, 05:46 PM
Fullbore55
Fullbore55 is offline
Road Master
Join Date: Sep 2016
Location: CC Tx
Posts: 1,008
Received 155 Likes on 136 Posts
Default

I doubt that an internal-to-AC-housing catch can would restrict airflow to engine in any measurable way.
Ditto for diverting that oily snot out of the AC housing. Thatís probably best solution for engine and worst for EPA.
Either keeps the oily snot from getting into engine.

Attached pic is one example of many found in other threads in this forum
 
  #18  
Old 01-10-2019, 09:30 PM
Max Headflow's Avatar
Max Headflow
Max Headflow is online now
Ultimate HDF Member
Join Date: Dec 2005
Location: poway
Posts: 6,996
Received 994 Likes on 830 Posts
Default

Come on guys, the motor was sucking it's self off and it blew a big one. Put the cover back on and don't say anything.. If you want to clean it up, go ahead.
 
  #19  
Old 01-11-2019, 08:08 AM
Gary1
Gary1 is online now
One Of The Regulars
Join Date: Dec 2017
Location: Baytown, Texas
Posts: 239
Received 27 Likes on 22 Posts
Default

This is what i did.
 
  #20  
Old 01-11-2019, 09:01 AM
bradn's Avatar
bradn
bradn is offline
Road Master
Join Date: Apr 2016
Location: Davenport, IA
Posts: 1,157
Received 185 Likes on 151 Posts
Default

OP - Here is a link to a discussion on all things "bypass": https://www.hdforums.com/forum/milwa...n-your-m8.html
 

Thread Tools
Search this Thread

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: