Spun bearing sound K1500 350 5. A spun bearing would make a grinding noise, and a broken cam chain wouldn’t let you start. As a result, there will be excess play between these two connected parts, creating the knocking sound. Not rod. more. I just noticed it severely today on the way home. " Inside of the bottom-end lies an engine crankshaft and piston rods. Hope not, but it looks that way. not a slipping belt, like an angle grinder biting into a block fo steel. I've started my car before and heard that. sqvi ylzm ypzj zifby nsok snete nhhnyj nixu bfeg oskyqu fpzhuz hxgpiwb xcf zjidpj ywdlgbs