Twin Cam Motors Twin Cam 1998 thru 2017

TC88 2003 FXDL wriring primary

Thread Tools
 
Search this Thread
 
Old Apr 25, 2024 | 02:44 PM
  #1  
TC88100th's Avatar
TC88100th
Thread Starter
|
Advanced
Liked
Loved
Joined: Apr 2024
Posts: 82
Likes: 13
From: Fylde Coast
Default TC88 2003 FXDL wriring primary

Hi folks,

got a wrirring primary seems to stop when you pull the clutch in. I plan to check the compensator on the weekend (and use the right loctite, my error) for the correct torque, as well as the compensator spring but just want to know if there’s anything else to look out for?

I’ve heard the inner primary bearing will also make a wrirring noise but I’m unsure on how to correctly diagnose or identify this?

as well as that I just want to know what else to look out for when I’m in there..
 
Reply
Old Apr 25, 2024 | 03:24 PM
  #2  
djl's Avatar
djl
HDF Community Team
Veteran: Army
15 Year Member
Photogenic
Liked
Joined: Jun 2006
Posts: 12,773
Likes: 2,603
From: san antonio
Community Team
Default

Could be one of several sources but if the noise stops when the clutch lever is pulled in, very likely the inner primary bearing is the problem.
 

Last edited by djl; Apr 26, 2024 at 08:57 AM.
Reply
Old Apr 25, 2024 | 03:26 PM
  #3  
TC88100th's Avatar
TC88100th
Thread Starter
|
Advanced
Liked
Loved
Joined: Apr 2024
Posts: 82
Likes: 13
From: Fylde Coast
Default

Originally Posted by djl
Could be one of several sources but if the noise stops whtn the clutch lever is pulled in, very likely the inner primary bearing is the problem.
and can I ask, how urgent of a repair is this? Can I leave it till winter, or is that risky
 
Reply
Old Apr 25, 2024 | 03:54 PM
  #4  
Jackie Paper's Avatar
Jackie Paper
Seasoned HDF Member
Community Builder
Community Influencer
Liked
Top Answer: 1
Joined: Mar 2010
Posts: 38,416
Likes: 6,366
From: Honah Lee
Default

Some of the years back then for the issue with the inner primary bearing were alignment issues brought on by the mothership failing to dowel the cover.

However, the bearing could just be worn by now.

https://www.hdforums.com/forum/prima...owel-pins.html

Google search will pin point it. If you have had it apart, maybe going back together affected alignment. With out dowels, covers need support as you snug up and then torque the pattern properly.

https://www.hdforums.com/forum/prima...owel-pins.html
 

Last edited by Jackie Paper; Apr 25, 2024 at 04:01 PM.
Reply
Old Apr 25, 2024 | 04:48 PM
  #5  
Rounders's Avatar
Rounders
Seasoned HDF Member
Community Builder
Liked
Loved
Community Favorite
Joined: Mar 2021
Posts: 18,131
Likes: 3,638
From: backwoods
Default

Originally Posted by TC88100th
and can I ask, how urgent of a repair is this? Can I leave it till winter, or is that risky
I would do it sooner the better, but probably not going to fail tomorrow

Ive used sockets abd thread rod to press in and out. Plus some kind of plate

I would consider tranny shifter seal when off, or at least inspect it. Everything might be 20 years old. Jack shaft seal too.
 
Reply
Old Apr 25, 2024 | 05:05 PM
  #6  
Max Headflow's Avatar
Max Headflow
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,862
Likes: 7,981
From: poway
Default

Originally Posted by Jackie Paper
Some of the years back then for the issue with the inner primary bearing were alignment issues brought on by the mothership failing to dowel the cover.

However, the bearing could just be worn by now.

https://www.hdforums.com/forum/prima...owel-pins.html

Google search will pin point it. If you have had it apart, maybe going back together affected alignment. With out dowels, covers need support as you snug up and then torque the pattern properly.

https://www.hdforums.com/forum/prima...owel-pins.html

This only became a problem on the 6 speeds.. The 5 speed tranny did not have this issue..

It could be the inner primary bearing but I've also managed to blow the mainshaft bearing in the trap door.. Makes the same noise. Also the inner primary bearing race can walk into the main drive gear. Another is issue can be the needle bearings inside the main drive gear walk.

It needs to be fixed..
 
Reply
Old Apr 25, 2024 | 05:30 PM
  #7  
Dan89FLSTC's Avatar
Dan89FLSTC
Seasoned HDF Member
Veteran: Navy
Active Streak: 30 Days
Top Answer: 3
Top Answer: 5
Joined: May 2008
Posts: 21,096
Likes: 12,640
From: South Carolina
Default

To diagnose a failed inner primary bearing:

Noise is present when transmission is in neutral.

Pull in clutch lever, the noise may stop.

Drop into gear, the noise will definetly stop.
 
Reply
Old Apr 26, 2024 | 12:58 AM
  #8  
TC88100th's Avatar
TC88100th
Thread Starter
|
Advanced
Liked
Loved
Joined: Apr 2024
Posts: 82
Likes: 13
From: Fylde Coast
Default

Originally Posted by Dan89FLSTC
To diagnose a failed inner primary bearing:

Noise is present when transmission is in neutral.

Pull in clutch lever, the noise may stop.

Drop into gear, the noise will definetly stop.
im going to have to say the. It’s unlikely to be the IPB as the noise is there in gear or without, again it’s very subtle. This leans me to believe it’s a too tight chain of or comp nut
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-1

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-2

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

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

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-6

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-7

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-8

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
story-9

Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

 Verdad Gallardo
Old Apr 26, 2024 | 09:11 AM
  #9  
Max Headflow's Avatar
Max Headflow
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,862
Likes: 7,981
From: poway
Default

Originally Posted by TC88100th
im going to have to say the. It’s unlikely to be the IPB as the noise is there in gear or without, again it’s very subtle. This leans me to believe it’s a too tight chain of or comp nut

In gear with the bike stopped?

If so could be a loose comp nut..
 
Reply
Old Apr 26, 2024 | 01:28 PM
  #10  
TC88100th's Avatar
TC88100th
Thread Starter
|
Advanced
Liked
Loved
Joined: Apr 2024
Posts: 82
Likes: 13
From: Fylde Coast
Default

Originally Posted by Max Headflow
In gear with the bike stopped?

If so could be a loose comp nut..
i think it must be, I torqued it a few weeks ago but admittedly didn’t have the step tool and used a rag, and also used blue loctite, now got the locking tool and the red loctite so will open her up on Sunday nd see
 
Reply



All times are GMT -5. The time now is 10:01 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Slideshow: Graeme Billington's left-hand-drive Shovelhead is as much about problem-solving as it is about classic Harley form.

By Verdad Gallardo | 2025-12-30 11:27:08


VIEW MORE