Combustion Leak Tester

Fast, economical & accurate method to test for combustion gas leaks from head gasket leaks, cylinder head leaks & engine block leaks. New & improved dual chamber for higher accuracy test to eliminate false readings. The first chamber will filter out any alkaline particles that could result in a false indication of a combustion leak. Test results in the second chamber will provide a true indication of a combustion leak. Works on gasoline & diesel engines. Positive proof that a leak is present is when the tester fluid changes color. Tester fluid changes color when a leak is present