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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: rbm on February 17, 2013, 07:32:40 PM

Title: Help identifying a retaining spring
Post by: rbm on February 17, 2013, 07:32:40 PM

Hi,  I bought some K1100 parts for a paralever conversion.  The seller delivered the items separated.  Included in the parts was this retaining spring:

(https://lh5.googleusercontent.com/-JyqkI9Ep36g/USFxoqdnenI/AAAAAAAACIs/8XlQ-lWy8pc/s640/IMG_1617.jpg)

I can't positively identify it and I hope that someone who is more familiar with K1100's can help.  I know it's not the retainer spring for any of the footrests.  I thought this might be the rear brake pedal retainer spring, but it doesn't match the OEM fiche diagram.  Any ideas?

Title: Re: Help identifying a retaining spring
Post by: wmax351 on February 17, 2013, 08:05:16 PM

Not sure exactly, but it looks kind of like one of the parts for the automatic side stand retrieval system.

Title: Re: Help identifying a retaining spring
Post by: frankenduck on February 17, 2013, 08:17:21 PM

Rear brake lever.

Title: Re: Help identifying a retaining spring
Post by: rbm on February 17, 2013, 08:30:20 PM

Thanks Duck.  Do you think the spring can be adapted to a K100 brake rear pedal mounted on the K1100 footplate?  I don't have the K1100 version pedal (it wasn't included in the purchase).

Title: Re: Help identifying a retaining spring
Post by: frankenduck on February 17, 2013, 08:43:30 PM

Yes, the brake pedal, part 35121450887, is the same on all classic K bikes. The mounting is a bit different I think though.  Contact me if you need help with that.

http://www.realoem.com/bmw/partxref.do?part=35121450887 (http://www.realoem.com/bmw/partxref.do?part=35121450887)

Title: Re: Help identifying a retaining spring
Post by: frankenduck on February 17, 2013, 08:55:01 PM

Pics attached.

Title: Re: Help identifying a retaining spring
Post by: rbm on February 19, 2013, 06:55:12 AM

Quote from: wmax351 on February 17, 2013, 08:05:16 PM

Not sure exactly, but it looks kind of like one of the parts for the automatic side stand retrieval system.

Bingo Max!  It turns out it is the retaining spring ( 46532311037 ) from the side stand retractor mechanism.

I tried every orientation to get that spring to work on the rear brake lever and just couldn't get it to fit. Researched parts on Ebay and concluded the rear brake lever return spring is differently shaped.

Cheers,

Title: Re: Help identifying a retaining spring
Post by: Inge K. on February 19, 2013, 07:00:01 AM

The hook on the spring points in the wrong direction.....to be attached to the brake pedal.

Title: Re: Help identifying a retaining spring
Post by: frankenduck on February 19, 2013, 07:59:56 AM

Seems odd that would come with K1100 parts since K1100 don't have the retractor like the 2V bikes do.

Title: Re: Help identifying a retaining spring
Post by: rbm on February 19, 2013, 08:06:07 AM

In the deal, I also asked for and received the centre stand.  Most all the parts in this diagram ( http://www.realoem.com/bmw/showparts.do?model=0526&mospid=51710&btnr=46_0114&hg=46&fg=10 (http://www.realoem.com/bmw/showparts.do?model=0526&mospid=51710&btnr=46_0114&hg=46&fg=10) ) came along with the paralever drive assemblies.  There were many loose parts in a bag which I'm sorting through now.  You'll note the spring, #15.  There was a retractor mechanism included as well.  This all came off a 1995 K1100LT.

Title: Re: Help identifying a retaining spring
Post by: Inge K. on February 19, 2013, 08:18:53 AM

Part #15 is for the sidestand switch mechanism......hmmm, could be that one also....seems like a closer match.

Title: Re: Help identifying a retaining spring
Post by: frankenduck on February 19, 2013, 08:26:41 AM

Quote from: rbm on February 19, 2013, 08:06:07 AM

There was a retractor mechanism included as well.  This all came off a 1995 K1100LT.

K1100s did not come with a side stand retractor.  All of the 4V K bikes used a switch (#19) to kill the bike with the stand down.  Very odd that a side stand retractor would  come with K1100 parts.  Probably just a bunch of miscellaneous stuff thrown into a box.