Engine Mechanical Topics Discussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.

excessive vibration

Thread Tools
 
Search this Thread
 
Old Jul 11, 2015 | 03:12 PM
  #1  
dan dan's Avatar
dan dan
Thread Starter
|
Stage IV
Joined: Jul 2015
Posts: 4
Likes: 0
From: Quebec Canada
Default excessive vibration

yesterday I could not get my 2007 FLHTCU to get over the 120 km/hr and today in idle I noticed excessive vibration. Valve problem?
 
Reply
Old Jul 11, 2015 | 10:01 PM
  #2  
98hotrodfatboy's Avatar
98hotrodfatboy
Seasoned HDF Member
15 Year Member
Liked
Loved
Joined: Mar 2010
Posts: 21,168
Likes: 7,676
From: Poolville
Default

Lets start with a compression test. Do that and list Any Motor work. we'll need to know to point you in the right direction.
 
Reply
Old Jul 12, 2015 | 05:45 PM
  #3  
dan dan's Avatar
dan dan
Thread Starter
|
Stage IV
Joined: Jul 2015
Posts: 4
Likes: 0
From: Quebec Canada
Default excessive vibration

New symptom. Went for a test ride and after 15 minutes or so, the bike had a hard time reaching 100 kms /hr and the oil pressure gauge was almost at 0. The oil levels were fine before I left.
 
Reply
Old Jul 12, 2015 | 08:17 PM
  #4  
greybeard122's Avatar
greybeard122
Cruiser
Joined: Jun 2007
Posts: 160
Likes: 24
From:
Default

If your oil pressure is almost 0, your lifters are bleeding down and your losing lift and valve timing. That's just the start. You have to find what your oil pressure problem is before you need a motor.
 
Reply
Old Jul 13, 2015 | 12:49 PM
  #5  
dan dan's Avatar
dan dan
Thread Starter
|
Stage IV
Joined: Jul 2015
Posts: 4
Likes: 0
From: Quebec Canada
Default excessive vibration

Compression is good. 172 and 175
 
Reply
Old Jul 13, 2015 | 04:41 PM
  #6  
98hotrodfatboy's Avatar
98hotrodfatboy
Seasoned HDF Member
15 Year Member
Liked
Loved
Joined: Mar 2010
Posts: 21,168
Likes: 7,676
From: Poolville
Default

Is that a 96" 0r a 103". Compression isn't bad. I have heard of oil sumping in the case which will rob a lot of power out of the motor. There are threads around hear that can help you. Just search "Oil Sumping" it's when the oil builds up in the lower case and is not pumped back to the reservoir.
 
Reply
Old Jul 13, 2015 | 05:01 PM
  #7  
dan dan's Avatar
dan dan
Thread Starter
|
Stage IV
Joined: Jul 2015
Posts: 4
Likes: 0
From: Quebec Canada
Default Excessive vibration

It's a 96 and thanks for the tip on oil sumping
 
Reply
Old Jul 13, 2015 | 05:26 PM
  #8  
98hotrodfatboy's Avatar
98hotrodfatboy
Seasoned HDF Member
15 Year Member
Liked
Loved
Joined: Mar 2010
Posts: 21,168
Likes: 7,676
From: Poolville
Default

Originally Posted by dan dan
It's a 96 and thanks for the tip on oil sumping
Your welcome. I hope thats all it is....Check your oil level that should give you an indication. But do your research.
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

10 Most Awkward-Looking Motorcycles Ever Built

 Verdad Gallardo
story-1

Jason Momoa Is Turning Classic Harleys Into PHEVs

 Verdad Gallardo
story-2

Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom

 Verdad Gallardo
story-3

6 Weirdest Harley-Davidsons Ever Sold to the Public

 Verdad Gallardo
story-4

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-5

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-6

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-7

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-8

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-9

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jeffbetrollin
Engine Mechanical Topics
10
Jul 11, 2016 06:45 AM
HarDlife
EVO
84
Sep 12, 2013 12:10 PM
jedsled
General Harley Davidson Chat
11
Jul 8, 2011 07:22 AM
Chopster1200
Sportster Models
6
Dec 22, 2009 01:04 AM
fatboy1017
Touring Models
11
Apr 21, 2008 10:38 AM




All times are GMT -5. The time now is 06:57 AM.

story-0
10 Most Awkward-Looking Motorcycles Ever Built

Slideshow: Not every motorcycle can be a design icon, and these machines prove that bold styling doesn't always age gracefully.

By Verdad Gallardo | 2026-06-12 11:58:41


VIEW MORE
story-1
Jason Momoa Is Turning Classic Harleys Into PHEVs

Slideshow: Jason Momoa's latest restoration project blends 1920s Harley-Davidsons with modern electric technology, creating some of the most unusual hybrid motorcycles ever built.

By Verdad Gallardo | 2026-06-10 17:18:58


VIEW MORE
story-2
Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom

Slideshow: Killer Custom's latest build relies on styling changes rather than performance upgrades, giving the cruiser an entirely different personality.

By Verdad Gallardo | 2026-06-03 18:28:05


VIEW MORE
story-3
6 Weirdest Harley-Davidsons Ever Sold to the Public

Slideshow: From military-inspired singles to scooters and three-wheel utility vehicles, these Harleys took the company far outside its comfort zone.

By Verdad Gallardo | 2026-06-02 18:34:10


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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