So Friday I was driving down the road and heard a loud bang followed by the sound of something hitting the floorboard as I drove over it. I shut the car off and pulled over to find a coolant leak from my lower radiator hose. I was able to repair it and get the car home and then replace the hose. I assumed I had run something over and it hit the hose as it passed under the car. Everything seemed OK so I’ve driven it the last couple days. I was under there doing some work this morning and found a large chunk of the outer portion of the harmonic balancer laying on the frame rail. The other half is what I must have heard banging on the floorboards. The car driving and running fine and there are no weird vibrations. Obviously I need a new damper but did I damage the engine potentially by driving it like this? Should I not run the engine again until I’m able to get this repaired or to be OK drive it around my yard. What do you guys think?
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