Temp Gauge swings toward high-side and back to norm with 3 sec
500 miles on a mild 360 9:1 compression with stock cooling system and 180 t-stat 50/50 conventional coolant: stock radiator and fan clutch. Only seems to happen when moving low speeds 10-15 mph swings rapidly towards high scale and than just as quick back to normal. It happened the same other my other stock 340 as well. Ammeter and fuel gauge stay normal
It will idle in the driveway all day long at the low end of the scale.
Here is the gauge after a 12 mile 40 min. drive:
500 miles on a mild 360 9:1 compression with stock cooling system and 180 t-stat 50/50 conventional coolant: stock radiator and fan clutch. Only seems to happen when moving low speeds 10-15 mph swings rapidly towards high scale and than just as quick back to normal. It happened the same other my other stock 340 as well. Ammeter and fuel gauge stay normal
It will idle in the driveway all day long at the low end of the scale.
Here is the gauge after a 12 mile 40 min. drive:
