Thanks for the replies. Voltage, oil, and tach still not working. I have checked the ground (white) and it is OK. I have NO voltage from the red to white on the gauge itself with key turned on. Have looked everywhere for a loose plug or wire and can't find anything. The wiring diagram shows wires from the gauges going to the ignition sw ,but all wires coming out of the ignition sw. are white. don't know where to go next. It seems like it is a loose connection somewhere because oil gauge went out first then tach and voltage. It could be two different problems. Any helpful ideas. I have not disconnected the battery as Mr Ambassador suggested, I will do that later.
Thanks
JimJ