Mechanical Auto meter temp gauge routing.

With a mechanical water temp gauge, does it matter where you route the cable to the front of the motor to the water pump? I ran mine in the cavity between intake and valley pan. Will that cause the cable to actually pick up heat and transfer it to the gauge and give a higher reading?

A cheaper version from any company should still read true, which isn’t always the case. I have an Autometer electrical temp gauge reading 10* higher than what it is supposed to read.

I have a cheaper mechanical gauge running between the valve cover and intake and it reads right on the nose.
The bulb on the end is what picks up the reading, not the line.