1. Here is bypass info:
Click on URL below to read copyrighted information:
http://stant.com/files/4814/0979/658...tructions1.pdf
2.
I also had a hose mounted 160 stat with stat clamped as close as possible to upper neck that varied widely from 130 to 170.
Tried two other new ones and they all did same same.
I think the reason is that there is not enough circulation for thermostat to work correctly and or it is the design of the cheap thermostats.
The Vintage Precision stat works just fine and stays close to 160 as designed using the same temperature gauge and moving the probe to position on the VP housing.