1964 cooling system
Le Mans Master
Joined: Feb 2014
Posts: 8,912
Likes: 5,460
From: Richardson Texas
If you remove the thermostat housing and fill the block first, then fill the radiator and finally half fill the supply tank with a 50/50 mixture of antifreeze and distilled water you shouldn't have any air to speak of to worry about. Start her up and bring her up to operating temperature, allow to cool and then check the supply tank to be sure it is still half full (if not, fill to half full) and you should be good to go
Le Mans Master
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From: Arlington TX
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From: Sitting in his Nowhere land Hanover Pa
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If it's a DeWitts OE replacement radiator and the cooling system is otherwise unmodified, it's no different than a coolant change. Slowly add until the tank is about half full then start the engine. Leave the cap off and watch the coolant level. Once the thermostat opens the coolant level should drop, so keep adding to keep the tank about half full.
Watch the temp gage to ensure that it doesn't get over about 180. Air will bleed out of the radiator vent line to the tank. When you think the system is full, put the cap on and take it for a short ride. Then let the engine cool and check the level. It tank should be about half full when cold.
Check and adjust the level as necessary over the next few heat cycles until it stabilizes at the proper level.
Duke
Watch the temp gage to ensure that it doesn't get over about 180. Air will bleed out of the radiator vent line to the tank. When you think the system is full, put the cap on and take it for a short ride. Then let the engine cool and check the level. It tank should be about half full when cold.
Check and adjust the level as necessary over the next few heat cycles until it stabilizes at the proper level.
Duke
Team Owner
Joined: Mar 2003
Posts: 26,118
Likes: 1,874
From: Greenville, Indiana
If it's a DeWitts OE replacement radiator and the cooling system is otherwise unmodified, it's no different than a coolant change. Slowly add until the tank is about half full then start the engine. Leave the cap off and watch the coolant level. Once the thermostat opens the coolant level should drop, so keep adding to keep the tank about half full.
Watch the temp gage to ensure that it doesn't get over about 180. Air will bleed out of the radiator vent line to the tank. When you think the system is full, put the cap on and take it for a short ride. Then let the engine cool and check the level. It tank should be about half full when cold.
Check and adjust the level as necessary over the next few heat cycles until it stabilizes at the proper level.
Duke
Watch the temp gage to ensure that it doesn't get over about 180. Air will bleed out of the radiator vent line to the tank. When you think the system is full, put the cap on and take it for a short ride. Then let the engine cool and check the level. It tank should be about half full when cold.
Check and adjust the level as necessary over the next few heat cycles until it stabilizes at the proper level.
Duke
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