Engine timing belt area with sprocket, green-sealed pulley, and…

Close-up of an engine's timing belt area with the timing belt removed, showing a metal camshaft or crankshaft sprocket with numerous drilled holes, a green-sealed idler/tensioner pulley, and a spring-loaded tensioner mechanism mounted to the aluminum engine block. Surrounding bolts and brackets show surface rust and grime.

AI caption December 2013 · Photo 8 of 51