Squealing and popping noise after changing thermostat and spark plugs

FOUR different ENGINE SIZES for it! do you know which one it is?or the model, 6 DIFFERENT ONES?

▪️During the process of replacing the listed parts, some of the engine components were not properly reinstalled▪️... Now to address the unusual noises.. The following video really should be viewed.. Pay close attention to the part that show the thermostats close proximity to the drive belt and the driven components!