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logan238
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-- 09-29-2021 @ 12:38 PM
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I get bubbles in my water at a fast idle or cruising speeds. The radiator shop says there's no exhaust in the water, and there's not white smoke out the rear. I lose 1/2 gallon of water in 50 miles. I have no thermostat. Why is it going out the overflow, and how can I fix it?
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carcrazy
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-- 09-29-2021 @ 1:15 PM
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How high are you filling the radiator? If you fill it to the very top, you will lose coolant until it gets down to it's working level. Most Flatheads like to have the coolant level just above the radiator core. If you put more than that amount in the radiator, it will just be pushed out as the engine warms up to it's operating temperature.
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Mr Rogers
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-- 09-29-2021 @ 2:10 PM
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Do you have a mixture of Anti Freeze?
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logan238
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-- 09-30-2021 @ 8:16 AM
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yes, I have a mixture of water and aantifreese. I have new waterpumps from carpenter but no thermastats so I'm going to put in two thermastats , hope that will keep it from bubbling over.
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logan238
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-- 09-30-2021 @ 8:17 AM
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I keep it down about 2 inches, you're saying it should be lower?
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carcrazy
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-- 09-30-2021 @ 10:53 AM
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The coolant level should be between 1/2 to 1 inch above the top of the radiator core. What year Ford do you have? The earlier years don't have a pressurized cooling system which will allow the coolant to boil at lower temperatures.
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logan238
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-- 10-04-2021 @ 7:04 AM
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It's a 34 ford cabriolet with a 4 core radiator
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