Ok - get this...
I had worthless Air temp guage replaced with oil temp gauge in fairing (my 1st mistake). I returned a couple of weeks later 'cause oil temp gauge not registering any temp.
Per HD install directions - dealer installed guage in "top" oil line that runs into oil cooler.
Dealer thinks this oil line is incorrect (summizes that this is the line "out" of cooler) so gauge should be installed in "lower" line that runs into oil cooler. (BTW the dealer and I still have not recieved the FLHTCUSE2 addedums to the maint/parts/elect manuals... but I guess that is besides the point --- all are backordered until end of Oct.....)
I jump in and request that the dealer service folks call HD Tech support to find out for sure as opposed to slicing up another line for a guess (my 2nd mistake).
HD Tech Support (

) says that they had it right to begin with but the gauge won't ever work correctly cause of the Oil thermostat which is installed on these bikes at the oil filter. (huh?) HD says that because of the cooling/warming of the oil thru the cooler and closing of the thermostat that the temp gauge will fluctuate wildly. (Seemed not to do chit in my dash).
Hmmm... I got this bike in Sept here in South Texas and have ridden it around in Houston traffic (and sitting still) and the guage should have at least been 220 with the thermostat open.
I asked dealer then to move the sensing part of the gauge from the oil lines to the sump hole in the pan (like I read in this forum) but the HD Tech guy said NOT to do that when pressed by the dealer service tech. The HD Tech guy refused to say why but the dealer tech summized that it might be that they were concerned that if something happened to the sensor (break off due to road debris or just comming apart like the dipstick oil temp guage, haha....) that a dramatic oil loss would occur.
So, should I ignore their concerns and just move the sensor myself or live with another POS gauge ---I'd like to not make 3rd mistake.
Thanks,
Mark