Antifreeze level

[Tom Wesenberg]

I don't know if adding the thermostat lowered the coolant temperature, but it kept the coolant in the radiator, instead of going out the overflow pipe. When I cleaned the radiator with liquid floor soap, then a final cleaning with washing soda, that lowered the coolant temp by about 20*. My original radiator had years of grease scum buildup from greasing the water pump rear bushing.