My temp gauge always reads at about 5/8 when at operating temperature with a 180 thermostat. I have a friend with a heat gun and he gets 180 at the thermostat housing. I hooked up a digital gauge and a new sender on the passenger head and it reads around 180 at operating temp.
I was just curious what the scale is on the original gauge. Is 180 really represented as 5/8 scale?
<A HREF="http://www.stratagaz.com/69LM1/1969LM1Convertible.htm" TARGET=_blank>My 69 LM1 Convertible