Flywheel & Compensator Shims for Primary Alignment - Harley Davidson Forums

Primary/Transmission/Driveline/Clutch Find answers to general powertrain, primary and transmission. Have clutch issues and need suggestions? Post them here.
Sponsored by:
Sponsored by:

Flywheel & Compensator Shims for Primary Alignment

Thread Tools Search this Thread
Old 10-15-2009, 01:06 PM
esport_evan's Avatar
esport_evan esport_evan is offline
New Member
Thread Starter
Join Date: Oct 2009
Location: San Diego, CA
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Default Flywheel & Compensator Shims for Primary Alignment

Hi guys, I have a question here as I'm working on updating our Harley parts application list. We have a 3-phase stator/regulator conversion kit for Harleys, but I've recently noticed some fitment problems with various models of bikes.

What I need to know to narrow this down is about the shims used on the crankshaft for primary chain alignment. Unfortunately, I'm not very familiar wit Harleys, and need to clarify some mechanical issues so I can ensure our stator fits correctly.

I'm attaching a picture to show what I believe is the correct layout under the primary cover:

This is drawn looking down on the primary case internals from above.
The crank is in black at the top, with the stator in blue, mounted to the engine sidecase.
The rotor/flywheel is in pink, and covers the stator.
The shims are in green on the outside of the rotor.
The compensator sprocket (is this the right name?) is in black outside the shim, along with the locking nut.
The chain is dotted black lines.
The clutch is on the bottom.

I have a few key questions:

How is the rotor held in place on the crankshaft?
Is the shaft tapered and has a woodruff key? Or is it splined?
The main thing I need to know here, is if the rotor slides onto the crankshaft to a certain point, and is fixed at that it is a fixed distance away from the stator windings.

Where are the shims to align the primary chain located? From my understanding in my above drawing, the shims are located between the rotor and the countershaft sprocket, to allow you to adjust the alignment of the primary chain in line with the teeth on the clutch basket.

Are these shims the only adjustment of the primary chain alignment?
From what I've read lurking through the forum it sounds like the transmission and therefore the teeth of the clutch sprocket can be adjusted too?

Thank you guys very much for giving me some information on these points!

Reply With Quote
Old 10-16-2009, 10:56 AM
rbabos rbabos is offline
Join Date: Mar 2007
Location: Woodstock, Ont , Can
Posts: 3,706
Thanks: 0
Thanked 0 Times in 0 Posts

Rotor is fixed postion as well as the stator. No shims. You need to get you hands on either used parts or the actual bike to confirm fit up and dimensions. Fastest way I know of. Both components are simple as dirt, once you see them but have the price of gold.
Reply With Quote
Old 10-19-2009, 12:25 PM
esport_evan's Avatar
esport_evan esport_evan is offline
New Member
Thread Starter
Join Date: Oct 2009
Location: San Diego, CA
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts

Hi Ron,
Thanks for the info.
I talked to a Harley Tech at a local dealership last Friday, and he confirmed this.
That was exactly what I needed to know!
I appreciate the help.
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Baker Compensator install on 12 twin cam Bumpandrun Primary/Transmission/Driveline/Clutch 57 07-21-2017 09:12 AM
BDL Springless Screw Compensator installed. FroggyFatBoy Primary/Transmission/Driveline/Clutch 14 07-06-2017 12:38 PM
90 Fatboy Compensator Sprocket Question Peter340 General Harley Davidson Chat 1 03-30-2012 08:37 AM
primary alignment issue slimmy1986 Primary/Transmission/Driveline/Clutch 0 05-06-2011 02:38 PM
Primary / Stator Job heavypic Primary/Transmission/Driveline/Clutch 12 07-13-2009 05:55 PM

align, aligning, alignment, chain, changing, davidson, evo, flywheel, flywheels, harley, harleys, primary, rotor, sprocket, sprockets, stator

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Featured Sponsors
Vendor Directory

All times are GMT -5. The time now is 02:58 PM.

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 and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: