Hydraulic Center Stand Rebuild and Flush Procedure - BMW Luxury Touring Community
 
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post #1 of 6 Old Apr 2nd, 2008, 10:42 am Thread Starter
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Hydraulic Center Stand Rebuild and Flush Procedure

As some are aware, I had a leak on my 2005 Electro-Hydraulic Center Stand.

I have found a source for the seals and filed a procedure per the link in this thread. They required 4 piece (per seal and O-Ring) Minimum. Great place to work with and helpful. The only "negative" for me was the Urethane recommendation for seal material. I found the lip easy to nick and I "burned through" 3 of the 4 during the rebuild(s). I am recommending Buna-N, YMMV.

The entire process will take 2 or 3 hours. If you are just flushing maybe 1-2 hours.

I had the pleasure of a "flawless" rebuild, until a few days later when she began spotting again. Took it back apart and saw one of the Snap Rings was not seated and the seals shifted. Replaced the seals again and snapped a piece off my cylinder end cap. Needless to say, this repair was also added to the procedure.

It appears more people are having problems with O-Rings than seals, so I went a little larger on the O-Ring cross section.

These two threads have some other Member's experiences:

Thread #1

Thread #2


This is the Procedure:

Center Stand Rebuild and Flushing Procedure

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post #2 of 6 Old Apr 2nd, 2008, 1:32 pm
 
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Re: Hydraulic Center Stand Rebuild and Flush Procedure

thank you this time i need it, fantastik
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post #3 of 6 Old Apr 2nd, 2008, 1:54 pm Thread Starter
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Re: Hydraulic Center Stand Rebuild and Flush Procedure

The Rod Seal is "standard". I found many web sites that sold it.
It needs to be a 10 mm bore, 16 mm OD and 4.5 mm wide. Material is Buna-N.

The "cartoon" of the Wiper Seal in the procedure (Page 21) are the dimensions from the supplier. You should (hopefully) be able to e-mail or fax that sheet and find it locally.

Good Luck.

2005 KLT "Old Blue"

Bruno the "Bugg"


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post #4 of 6 Old Apr 10th, 2008, 2:18 pm
 
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Re: Hydraulic Center Stand Rebuild and Flush Procedure

Joe, great follow-up article and thanks for the seal info. I will try to find spares locally or go to your source. I put a more detailed response in the other thread I was following. THanks, Dale.
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post #5 of 6 Old Apr 19th, 2010, 8:39 pm
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Re: Hydraulic Center Stand Rebuild and Flush Procedure

Center Stand Rebuild and Flushing Procedure. I can't get access to this procedure or the location to purchase the seals. Can you send it to me: [email protected].... New to this form.
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post #6 of 6 Old Apr 19th, 2010, 8:42 pm
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Re: Hydraulic Center Stand Rebuild and Flush Procedure

Stuff moves around on this site. Here is an updated link EHCS Procedure

Oh and make sure you do not completely fill the unit with fluid or a hydraulic lock will occur and blow out the case gasket. There needs to be some air so the relief valve has somewhere to pass the fuild at the end of travel of the ram.

John
2009 K1300GT Red Rocket
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2005 K1200LT Ocean Blue Blue Wizard 110 K and counting...
2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
K4AN

Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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Last edited by jzeiler; Apr 19th, 2010 at 10:01 pm.
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