Author Topic: Start up after 6 years!  (Read 7177 times)

Offline The Mighty Gryphon

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Re: Start up after 6 years!
« Reply #25 on: December 31, 2020, 01:01:27 PM »
Nice job!  icon_cheers
  • In my garage in Marilla, NY
  • '91K100RS White/Blue
Current:
'91 K100RS16V "Moby Brick Too"

Past:
'94 K75RT "Ilsa, She Wolf of the SS"
'92 K100RS16V "Moby Brick" (RIP, deceased in a vehicular assault)
'94 K75S Special Edition Dakar Yellow "Cheetos"
'89 K100RS Special Edition "Special Ed"

Offline foliver

  • ^ Proficient Motobricker
  • Posts: 194
Re: Start up after 6 years!
« Reply #26 on: January 01, 2021, 05:36:54 PM »
Hi!, happy new year for everyone!!

today i test the thermostat, but i think it's dead, if i boil it it opens at full position, but at room temp( 22 celcius/ 70 F) it still remains open ( not fully but as on the picture).
I think it should be fully close at room temp, or not?


* Thermostato.jpg (54.87 kB . 673x576 - viewed 374 times)
  • Montevideo, Uruguay
  • Bmw K75C 86

Offline Laitch

  • Faster than a speeding pullet
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Re: Start up after 6 years!
« Reply #27 on: January 01, 2021, 07:42:07 PM »
It should be fully-closed at room temperature unless your room is hot as hell. Here's one that's fully-closed.


That isn't an easy part to replace without spending plenty of money so try cleaning it by boiling it in a 5 parts distilled water to 1 part vinegar solution then see if that releases debris in it. Maybe it will close fully when the solution cools. Don't scorch the gasket because you won't easily find a replacement.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline foliver

  • ^ Proficient Motobricker
  • Posts: 194
Re: Start up after 6 years!
« Reply #28 on: January 02, 2021, 07:36:57 PM »
Hi Laitch, ok, i've worked on it today.
I boiled it with your relation water-vinegar, and then i put it into the ultrasonic, cleaner, nothing.....
I've prepaired a bowl with ices and water, and othe boiling one, and i've donne some cycles...it continue without closing, so i assume i need a new one.

Another good simple intervention today was the waning switch. It has been stiff from the beginning ( 8 years ago, bought used).
i unsoldered, and dismantle it, i put it in the ultrasonic box with 100% vinegar, and after that it clicks easily and smooth.
I quasy lost a spring that can fly to mars in the dismantle process..

I've empty the oil, and retired the filter, waiting now for parts...
  • Montevideo, Uruguay
  • Bmw K75C 86

Offline rbm

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Re: Start up after 6 years!
« Reply #29 on: January 02, 2021, 08:58:01 PM »
There are several thermostats available on the market that are suitable replacements for the OEM one.  See this thread about the Tridon tt214-180:  http://www.motobrick.com/index.php?topic=5038.0 . There are threads that suggest a Toyota thermostat as a replacement but I never managed to get it to work in my experience.  This thread on the other forum has lots of good information :  https://www.k100-forum.com/t7589-thermostat-gasket-not-o-ring  I would check out Motobins for an OEM replacement.
  • Regards, Robert
Toronto, Ontario

1987 K75 - Build Blog @http://k75retro.blogspot.ca/

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