Weird cooling system behaviour

mullinax95 said
I always dill a 1/16" hole in the thermostat to allow air to escape.

Where exactly? I assume you close the hole but how? (otherwise once the air is gone the coolant wil escape)

My rad is shot, the coolant is brown and there was NO thermostat.

Going to flush the system and hope no passages are blocked.

Replace radiator (have new one) do a seperate oil cooler for trans, new Tstat 180* and new rad cap. Hope that does the trick.

Why would the PO have ran without a Tstat you think? It was going to be a drag engine build that never got off the ground is all I know...