Exposed engine timing chain and cam sprocket with the timing cov…

Close-up of an engine's timing chain assembly with the timing cover removed, showing the large camshaft sprocket, the smaller crankshaft sprocket on the snout, the roller chain looped around both, and the exposed crank bolt. Old orange RTV sealant remains on the block face and oily grime coats the surrounding castings.

AI caption February 2006 · Photo 17 of 18