Reply to "Scraping sound from front of motor"

racecarmikeMember

My experience tells me that a bad rod bearing sounds just like how many describe it "rod knock" which emanates from deep inside the engine. From your video it sounds more like a scraping sound. Marlin's advice of using a stethoscope to help pinpoint the noise is a great option. If you haven't used one before you will be impressed with what you will hear. It sound like something has shifted enough to scrape part of the rotating assembly. Many something around the timing cover or windage tray.

8/18/223:20 PM

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