Hi,
I've got twin 12 inch fans to cool my CA18DET with the stock radiator. I'd like to remove the drain plug in the bottom on the rad on the passenger side and replace it with a temperature switch to control the fan.
What temperature should I get ? There are plenty available...
82C on 72C off
88C on 79C off
100C on 95 off etc
What size is that thread ?
cheers, Dick.