I recently bought the car from a friend after it stopped running. The bolt holding the timing belt tensioner sheared and the cams jumped time. After getting that all replaced and the car back running, there's a strange noise coming from the area around the crankshaft pulley. It doesn't sound like a rod knock to me, more like a loud tapping coming from that area. The car starts, idles and runs great, I'm just lost on what that noise could be. On initial start-up after sitting overnight, the noise is barely noticeable but after the car warms up, it gets pretty loud. Any help with this would be appreciated.