hey evryone, i recently brought a 75 260z 2+2 for my first car, it was in a backyard under a tarp for the last four years with a very holy radiator, got it home had the radiator repaired put it back together didn't work, being my first car had no idea thermostat would be stooged too, refurbished that. now it all seems to be working (raditor is sucking and doin it's job) but my water temp gauge isnt working neither is the gauge its connected to i think its oil pressure, anyway i was wondering what would be stopping it from working and where is the plenum located and how can i check if it's working
thanks
location is werribee victoria