2004 R1150RTP running hot , 188,000 miles on bike

[BILLK75]

Today when coming back from the CCBR rally my temp gage was running 7 to 8 bars (it's normally 6). I sprayed water on the oil cooler and nothing changed. The fan was running but the oil cooler was room temp. The ambient air temp was 102. I shut it off and let her cool , she came down to 6 bars, as I rode home it climbed to 7 bars and held there. When I got home I scanned the cooler with my pyrometer and it was room temp. I let her sit for 2 hours and rechecked it and the cooler seemed to function normally, getting hotter as the engine warmed up. any ideas?

 

[gsaddict]

The oil thermostat may be failing (sticking)
It opens at 4-5 bars.
Located at the right side of the engine under the pipe that feeds the oil cooler.
Item #15 - 11 41 1 342 761 EXPANDING ELEMENT - 95CEL


http://www.maxbmwmotorcycles.com/fiche/DiagramsMid/B0004375.png?v=07012015

 

[BILLK75]

Is that a part that you can clean and reinstall or do you have to replace the plunger

 

[gsaddict]

Is that a part that you can clean and reinstall or do you have to replace the plunger

No, it is a sealed unit, you replace.

 

[BILLK75]

New thermostat fixed it, total time about 2 hours ,15 min. Thanks for the help.

 

[gsaddict]

Interesting, not a common problem. Glad that fixed it.