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Component Testing
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Bimetal Vacuum Switching Valve (BVSV) Supra
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BVSV 3
BVSV 3
Drain coolant from radiator into container. Remove BVSV 3 and immerse in coolant. Valve should be closed when temperature is below 122°F (50°C).
Heat coolant to above 147°F (64°C). Check that valve is open.