So I tightened the alternator belt on the k10 I recently picked up. The belt was too loose, but not loose enough to squeal. I tightened just enough to get about 1/2 to 3/4 inch deflection. Started her up, and get a knock. If I loosen it back, the knock is barely audible. It goes away when throttle is given, but comes back once the engine comes back to idle.
Rod knock/ bottom end??