Milwaukee Eight (M8) 2017 and up M8 Air and Liquid Cooled discussion
Sponsored by:
Sponsored by:

While Installing SE Manifold.....

Thread Tools
 
Search this Thread
 
Old Mar 22, 2021 | 11:54 AM
  #1  
702's Avatar
702
Thread Starter
|
Seasoned HDF Member
Joined: May 2018
Posts: 5,814
Likes: 7,146
From: Las Vegas
Default While Installing SE Manifold.....

I find this. The flange bolts were tight, but I could easily rotate the manifold by hand. Rear manifold seal leaking oil. I did the bypass not long ago, so this is probably residual - but still - that's quite a bit isn't it?

Something else going on here that I'm missing?




 
Reply
Old Mar 22, 2021 | 03:05 PM
  #2  
manofsteele2003's Avatar
manofsteele2003
Road Master
Joined: Sep 2007
Posts: 801
Likes: 62
From: NoVa
Default

Pretty nasty. How many miles do you have on it?
 
Reply
Old Mar 22, 2021 | 03:12 PM
  #3  
702's Avatar
702
Thread Starter
|
Seasoned HDF Member
Joined: May 2018
Posts: 5,814
Likes: 7,146
From: Las Vegas
Default

Originally Posted by manofsteele2003
Pretty nasty. How many miles do you have on it?
Just shy of 27k.
 
Reply
Old Mar 22, 2021 | 03:14 PM
  #4  
702's Avatar
702
Thread Starter
|
Seasoned HDF Member
Joined: May 2018
Posts: 5,814
Likes: 7,146
From: Las Vegas
Default

When I finished the manifold swap I installed the updated HD Stage 2 tune, then went for a quick 15 mile ride to get it hot, then check for any leaks etc.

Sure runs better.
 
Reply
Old Mar 22, 2021 | 05:28 PM
  #5  
Hairy Larry's Avatar
Hairy Larry
Big Kahuna HDF Member
Veteran: Army
10 Year Member
Liked
Loved
Community Favorite
Top Answer: 1
Joined: Oct 2010
Posts: 51,364
Likes: 4,614
From: Texas
Default

My manifold looked the same. This happened before you did the breather bypass. I'm sure your new manifold will stay clean.
 
Reply
Old Mar 22, 2021 | 06:02 PM
  #6  
702's Avatar
702
Thread Starter
|
Seasoned HDF Member
Joined: May 2018
Posts: 5,814
Likes: 7,146
From: Las Vegas
Default

Originally Posted by Hairy Larry
My manifold looked the same. This happened before you did the breather bypass. I'm sure your new manifold will stay clean.
Makes you wonder why so many are anti-bypass doesn't it?
 
Reply
Old Mar 22, 2021 | 06:27 PM
  #7  
Hairy Larry's Avatar
Hairy Larry
Big Kahuna HDF Member
Veteran: Army
10 Year Member
Liked
Loved
Community Favorite
Top Answer: 1
Joined: Oct 2010
Posts: 51,364
Likes: 4,614
From: Texas
Default

Originally Posted by 702
Makes you wonder why so many are anti-bypass doesn't it?
I guess they believe this is acceptable.



 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Char84
General Harley Davidson Chat
11
Jul 30, 2020 08:23 PM
Godinaz
Milwaukee Eight (M8)
8
Feb 15, 2020 03:46 PM
Kyle Moore
Milwaukee Eight (M8)
14
Feb 2, 2020 02:25 PM
icebite1
Tri Glide, RG3 & Freewheeler Models
17
Sep 4, 2013 03:10 PM
UofM_fanatic
Screamin Eagle CVO Models
4
Jan 31, 2008 06:46 PM




All times are GMT -5. The time now is 04:23 AM.

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