Homemade Auto Radiator Pressure Tester
Phil B. on instructables.com
Homemade auto radiator pressure tester adapted from a tire pressure gauge. Utilizes two tire valve stems, one for the pressure release, the other for the stopper. A tee-joint connects the components via 5/16" rubber fuel line hose. Stopper is fashioned of wood, turned to fit radiator neck openings.
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