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Open drain valve on bottom of radiator and drain approx. 1 gallon of anti freeze. Take hoses loose,and unscrew thermostat housig bolts. Take thermostat out and then clean housing where hoses attach. Then clean old gasket off of engine housing making sure not to gouge metal probably want to use a razor blade scraper. Install gasket using thermostat sealant. Install new thermostat making sure to install right way thermostat will have a stamp on it that says to radiator. Put a little bit of anti-seize on hose connections and on bolts after cleaning them. Tighten bolts and install hoses.
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