Author Topic: The Main Seal / O-Ring Leak  (Read 4817 times)

Offline Jimbenge

  • Motobrick Curious
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The Main Seal / O-Ring Leak
« 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...........
2015 K1600GTL & Getaway Trailer
1985 K100RT-EML Sidecar w/Kwik Kamp Tent Trailer
2006 Harley Sportster Roadster 1200R (In-Town)

Rick G

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Re: The Main Seal / O-Ring Leak
« Reply #1 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.

Duc750

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Re: The Main Seal / O-Ring Leak
« Reply #2 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

Offline frankenduck

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Re: The Main Seal / O-Ring Leak
« Reply #3 on: May 25, 2012, 04:28:25 PM »
Strap it to the left frame rail.
Once I had a Collie pup. Dug a hole and covered him up. Now I sit there by the hour. Waiting for a Collie-flower.
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Duc750

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Re: The Main Seal / O-Ring Leak
« Reply #4 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

Offline frankenduck

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Re: The Main Seal / O-Ring Leak
« Reply #5 on: May 25, 2012, 04:50:14 PM »
They are not solid.  They can be bent. (within reason)
Once I had a Collie pup. Dug a hole and covered him up. Now I sit there by the hour. Waiting for a Collie-flower.
New to K bikes? Click here.
K Bike Maintenance & Mods: Click here.
Buy parts here.

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