R&I EGR Valve 642 Eng. #3 PDF

An automotive technical document that provides detailed instructions for draining and filling coolant for engines 642 in models 164 and 251. The document includes schematics and images illustrating various components, such as the coolant expansion reservoir and level indicator, and lists necessary safety precautions. The imagery highlights tools and parts such as the tank cap and vacuum-type cooling system filler.