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.

Gear Drive CAM whine

Thread Tools
 
Search this Thread
 
Old Jul 18, 2018 | 10:30 PM
  #1  
jpowell490's Avatar
jpowell490
Thread Starter
|
Road Master
Joined: Feb 2008
Posts: 819
Likes: 21
From: Johnson City, TN
Default Gear Drive CAM whine

Looking to switch to gear drive cams in my 06 Softail Standard. I want it to be noisy, just like the old Pete Jackson car engine gear drives. Does anyone know of a shop that makes those straight cut and noisy
 
Reply
Old Jul 19, 2018 | 05:39 AM
  #2  
grbrown's Avatar
grbrown
Club Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
Default

Harley gear-driven cams, of any generation, do not make much noise. I suspect you're chasing a dream here!
 
Reply
Old Jul 19, 2018 | 05:44 AM
  #3  
Kingglide549's Avatar
Kingglide549
Banned
Joined: May 2018
Posts: 4,576
Likes: 978
From: Viet Vet, crossroads
Default

If you are lookin for atn install a really big cam and loud pipes.............
It will be all noise and no go until you hit about 3500RPM.
Personally, I would spend my money on something else.........
 
Reply
Old Jul 19, 2018 | 09:19 AM
  #4  
nickburns's Avatar
nickburns
Intermediate
Joined: Sep 2016
Posts: 29
Likes: 2
From: up north
Default

Most cam gears are straight cut. I think woods is the only ones helical. Maybe get a custom straight cut gear drive primary machined? Would be super cool.
 
Reply
Old Jul 19, 2018 | 06:19 PM
  #5  
e6fmf's Avatar
e6fmf
Road Master
Joined: Feb 2008
Posts: 832
Likes: 125
From: Parris Island
Default

Mine whirred/whined also, after awhile you wont hear it.
 
Reply
Old Jul 20, 2018 | 03:32 PM
  #6  
joe40x's Avatar
joe40x
Road Warrior
10 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2014
Posts: 1,623
Likes: 698
From: nowhere
Default

Put in all 2x undersized cam gears in it. It'll make a lot of noise right to when till it blows up. Then it will make more noise...just not for long.
 
Reply
Old Jul 23, 2018 | 07:59 AM
  #7  
northeastconfederate's Avatar
northeastconfederate
Tourer
Joined: Jul 2007
Posts: 497
Likes: 8
From: New Egypt, NJ
Default

Originally Posted by jpowell490
Looking to switch to gear drive cams in my 06 Softail Standard. I want it to be noisy, just like the old Pete Jackson car engine gear drives. Does anyone know of a shop that makes those straight cut and noisy
If your cam gears whine like you describe in your HD, your gears are too tight - not enough clearance. Not enough clearance means no room for oil between the meshing gear teeth and extremely high stresses on the gears and associated parts like pinion shaft and cam plate bearings. This will eventually lead to broken parts.

I remember the old Pete Jackson gear drives and the whine you're talking about. You're not going to replicate that in your HD if everything is set up correctly.
 
Reply
Old Jul 24, 2018 | 06:34 AM
  #8  
Hillsidecycle.com's Avatar
Hillsidecycle.com
Sponsor
Joined: Dec 2007
Posts: 12,084
Likes: 829
Default

I'd shoot for proper clearence in the set-up, and not worry about the noise.
One bike I have does have a whine, when deccelerating...1967 FLH, but that has a gear train in it, along with a generator.
Scott
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

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

 Verdad Gallardo
story-1

6 Weirdest Harley-Davidsons Ever Sold to the Public

 Verdad Gallardo
story-2

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-3

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-4

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-5

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

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

 Verdad Gallardo
story-8

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-9

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
Old Jul 26, 2018 | 02:38 AM
  #9  
badcooky's Avatar
badcooky
Banned
Joined: Jan 2012
Posts: 3,098
Likes: 474
From: Location location.
Default

Originally Posted by jpowell490
Looking to switch to gear drive cams in my 06 Softail Standard. I want it to be noisy, just like the old Pete Jackson car engine gear drives. Does anyone know of a shop that makes those straight cut and noisy
S@S does I think ?
I know they do for the M8 , not sure about the Twinky.
 
Reply
Old Jul 27, 2018 | 10:23 AM
  #10  
Max Headflow's Avatar
Max Headflow
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,944
Likes: 8,038
From: poway
Default

Originally Posted by northeastconfederate
If your cam gears whine like you describe in your HD, your gears are too tight - not enough clearance. Not enough clearance means no room for oil between the meshing gear teeth and extremely high stresses on the gears and associated parts like pinion shaft and cam plate bearings. This will eventually lead to broken parts.

I remember the old Pete Jackson gear drives and the whine you're talking about. You're not going to replicate that in your HD if everything is set up correctly.

I just replaced cams on my RK. Had first oversized inner cam cam gear, Whined for about 45000 miles, How much longer before it blows up? Gears and bearings looked fine. Current setup whines when cold, should I be worried?
 
Reply



All times are GMT -5. The time now is 02:20 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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