Author Topic: 1993 k1100 coolant dripping from weep hole  (Read 99 times)

Offline Lucas1983

  • Motobrick Curious
  • Posts: 21
1993 k1100 coolant dripping from weep hole
« on: January 16, 2026, 08:02:06 PM »
Hello everyone,
Before anyone attacks me I did search the topic before starting a new one.  Looking for confirmation here.
Last winter I fully rebuilt my bike, replaced all the seals.  Bike is running great.  Towards the end of the season I noticed few drips of coolant.  It is coming from the weep hole. Nothing major but enough to look at this closer.  I rebuilt the water pump as well, replaced all the seals but not the shaft.  Appeared to be in good shape.  Is it possible the new seal was faulty.  I read here people replaced their seals numerous times before it stoped dripping.  Is that the direction I should be going?  When I bought the bike the radiator cap was also a bit sticky, but I was able to fix that. Maybe the cap has to be replaced as well?
Thank you.
  • USA
  • 1993 BMW K1100lt

Offline Past-my-Prime

  • ^ SuperNatural Motobricker
  • Posts: 581
  • All of us are better when we're loved.
Re: 1993 k1100 coolant dripping from weep hole
« Reply #1 on: January 22, 2026, 12:56:48 PM »
I only had to replace my seals once but I may have gotten lucky.  It is finicky and the procedure outlined needs to be followed precisely or the seal will be a bit off kilter and start to leak again, so I understand.
  • North Shore of Lake Superior (in my garage)
  • BRICK: 1989 K75 RT - Rocinante; NON-BRICK: 2007 F650 GS Dakar - Betty Blue

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