Rehashing old tach idea

[JimNC1]

Hey, on this BSPT threads issue...................will I be finding the same issue if I add a water temp gauge? Luckily I had bought an oil pressure gauge installation kit for the oil pressure gauge from AutoMeter and it included the proper adapter. So is it likely I'll pull the same luck with a coolant gauge?

Coolant temp is straight analog resistance - you should find a standard meter will work. Maybe the offset will be different but I doubt it.

 

[lmichael]

Oh yeah I know that. Just was wondering about the threads to install a sensor, If they were BSPT as well like the oil pressure.
BTW the tach and oil pressure gauges are working like champs for me

 

[22R]

Thank you for the idea. I forgot this is how my BX alternator works the tach.
I'm doing the same thing as you for my G1800. I programmed up a little HMI with
-RPM
-Wheel RPM - Feet/Sec - MPH selectable by touch screen
-Battery volts (so I can monitor, as the sprayer and fuel pump are power suckers)
-Fuel PSI (I had problems before and I may turn on/off the fuel pump to save power
-outside air temp (just because I can)

I used a "CYD" (google Arduino and CYD and you'll have it) and a acquisition MCU to pass it data. I'm 3d printing a little "console" to sit beside the speed lever.

For the speed, I CAD modeled discs with magnets and brackets to hold the sensors, and I have them on the axle. Actually looks pretty pro.
For the Engine RPM, I'll try your idea! I was going to affix a magnet on the flywheel and a bracket, but that is cleaner.

I'll share the project on GITHUB when I get it complete. I have the HMI finished, just working on the acquisition MCU to feed it the data.

If you can make one, Make two
be sure to post pics when done

22R