1948 temperature gauge calibration

K

Ken Dubs

Member
I converted our 48 to 12 volts with the usual resistors but I have always had a problem with the temp gauge pegged on hot when the infrared gun shows engine temp at 165-170 degrees. Any thoughts on how to calibrate the gauge to read accurately??? Are there sending units with different resistance to compensate??? Ken
 
Seems like a refresher course in algebra and a sharpie on the gauge is the best answer!!! Engine is running at 160 and gauge is 3/4 into the hot range. Better that way than the other. Thanks for your reply and guidance. Ken
 
Are you using an original King Seeley sending unit or a modern rheostatic type? When we perform a 12 volt conversion, we provide a solid state voltage regulator to operate the gauge. The input voltage differs based on which sending unit route you are going.
www.morrisgauge.com
 
You must log in or register to reply here.
Back
Top