Coolant recovery systems - Team Camaro Tech
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post #1 of 4 (permalink) Old Jul 18th, 01, 09:35 AM Thread Starter
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Rick
 
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Do you need a special type of radiator cap for the system to function?

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Rick Dorion
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post #2 of 4 (permalink) Old Jul 18th, 01, 09:41 AM
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May not be special but yes it has two rubber seals instead of one.

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post #3 of 4 (permalink) Old Jul 19th, 01, 03:12 PM
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Virtually all cars built since the 40's use a cap with a pressure/vacuum valve in them; the pressure valve allows coolant to bypass the primary seal and exit via the nipple to the recovery tank (on recovery system cars)when the pressure created by the overheated coolant exceeds the cap's rating, and the vacuum valve allows coolant to be drawn back into the radiator through the same nipple from the coolant recovery tank as the engine cools and a vacuum is created in the cooling system. Pre-recovery system cars just allowed hot coolant to be puked out through the nipple and overflow hose. Caps haven't changed for years except for increased pressure ratings.

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post #4 of 4 (permalink) Old Jul 19th, 01, 05:35 PM
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Gary
 
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Rick, when you come up, take a look at the custom coolant system that I installed.
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