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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: Jimbenge on May 23, 2012, 11:11:45 PM

Title: The Main Seal / O-Ring Leak
Post by: Jimbenge on May 23, 2012, 11:11:45 PM
Got a new to me K1100LT awhile back with only 9K on the clock.  Had a few problems, both master cylinders leaked (fixed) and a few other minor things.  But it does have a pretty good leak coming out of the rear main seal or most likely the O-Ring.  I have dug into several K100's before fixing this problem but not a K1100 yet.  My question is should I dismantle the whole drive line or take out the tranny and drive line in one piece ?  I have seen pictures doing it both ways.  The bike only has 13K on it now.  Also do I really need to disconnect the brake lines from the ABS pump or can I work around it ?  Any other advise is appreciated.   Thanks in advance...........
Title: Re: The Main Seal / O-Ring Leak
Post by: Rick G on May 23, 2012, 11:31:06 PM
I would dismantle it and do some greasing on the pivot bearings at the same time. The old grease on those bearings wont be doing a very good job anymore.
As for the ABS you don't need to disconnect any lines.
Title: Re: The Main Seal / O-Ring Leak
Post by: Duc750 on May 25, 2012, 04:16:55 PM
Seriously guys, Its not the first time someon has said this on here - how the hell do you gaet the driveline out without removing the ABS system and therefore needing to blead brakes - I have been into the back end of my k1100 twice now and both times have had to remove the ABS system and disconnect the rear caliper
Title: Re: The Main Seal / O-Ring Leak
Post by: frankenduck on May 25, 2012, 04:28:25 PM
Strap it to the left frame rail.
Title: Re: The Main Seal / O-Ring Leak
Post by: Duc750 on May 25, 2012, 04:44:12 PM
Is there enough "play in the solid lines to do that? I'm pretty sure there's not in mine
Title: Re: The Main Seal / O-Ring Leak
Post by: frankenduck on May 25, 2012, 04:50:14 PM
They are not solid.  They can be bent. (within reason)