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Join Date: Oct 2003
Location: Southwest Florida
Re: Correct radiator cap
A non recovery cap has only a seal where it contacts the opening in the radiator and the recovery cap as a seal on the upper edge where the brass would be on the non recovery cap, ie, two seals so as to recover coolant from the reservior and the non recovery cap allows coolant to overflow and air to return to the radiator. Hope I haven't messed you up about caps. The early cooling systems usually had a lower pressure than the recovery systems on later cooling systems.
Maryland Chevelle Club #017
progress has little to do with speed, but lots to do with direction
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