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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: ludwig on June 30, 2015, 03:24:47 PM

Title: Does the flywheel need to be marked as well as clutch pack?
Post by: ludwig on June 30, 2015, 03:24:47 PM

Newbie here.

I marked the clutch pack but missed the flywheel.
Gong back together now  but not sure how to proceed wth the arrangement of the flywheel?

What do the factory marks look like?

Many thanks

Title: Re: Does the flywheel need to be marked as well as clutch pack?
Post by: F14CRAZY on June 30, 2015, 05:39:25 PM

I think it's technically the clutch housing you're talking about but it works as a flywheel I suppose.

I would say it should be marked. The factory mark is a fairly big orange paint dot facing the rear of the bike

Title: Re: Does the flywheel need to be marked as well as clutch pack?
Post by: ludwig on June 30, 2015, 10:52:06 PM

Thanks

Title: Re: Does the flywheel need to be marked as well as clutch pack?
Post by: F14CRAZY on June 30, 2015, 10:57:27 PM

http://www.ebay.com/itm/BMW-NEW-CLUTCH-HOUSING-ELBE-K75-K75C-K75S-K75RT-21211454169-/121348328086 (http://www.ebay.com/itm/BMW-NEW-CLUTCH-HOUSING-ELBE-K75-K75C-K75S-K75RT-21211454169-/121348328086)

You can see it in this ebay ad

Title: Re: Does the flywheel need to be marked as well as clutch pack?
Post by: Elipten on July 01, 2015, 08:07:45 AM

Again I'll say since the parts are sold separately of each other; the parts must be each be balanced, versus as a package.

Title: Re: Does the flywheel need to be marked as well as clutch pack?
Post by: TimTyler on July 01, 2015, 08:22:12 AM

The paint mark on clutch parts indicates the heaviest side of the part.

When assembling the clutch the three parts with paint marks should ideally be assembled so that the three paint marks are 120 degrees apart.

Title: Re: Does the flywheel need to be marked as well as clutch pack?
Post by: ludwig on July 01, 2015, 10:13:08 PM

Anyone have any idea what it feels like if the pieces are misaligned?

Title: Re: Does the flywheel need to be marked as well as clutch pack?
Post by: Elipten on July 01, 2015, 11:19:38 PM

Not smooth they say

Title: Re: Does the flywheel need to be marked as well as clutch pack?
Post by: F14CRAZY on July 02, 2015, 06:19:03 AM

I believe I experienced more vibration

Title: Re: Does the flywheel need to be marked as well as clutch pack?
Post by: ludwig on July 02, 2015, 07:10:07 AM

How would you re-align a mis-aligned (possibly) clutch pack if the only mark was the factory mark on the housing?

Title: Re: Does the flywheel need to be marked as well as clutch pack?
Post by: wmax351 on July 02, 2015, 03:31:12 PM

I'm wondering the same thing on mine. Has more vibration since the rebuild. Couldn't find some of the marks.

Going to check the index mark on the counterbalancer shaft to make sure that isn't mis aligned, and re-shim the frame. I might get some micro scales and weigh the components from the bolt holes to at least get an idea of the balance.

Title: Re: Does the flywheel need to be marked as well as clutch pack?
Post by: pallum on July 03, 2015, 02:14:50 AM

It's my opinion that each part of the clutch pack is balanced separately (that's what I would do if designing something like that), I've had my clutch in multiple configurations and haven't had any excess vibration. YMMV