[Ams13]

Ok so i bought the car using buy it now on Ebay ( no money sent yet). I go check it out today, and the car is mint! I was all pumped until I went to start it....I heard a knocking sound coming from under the hood. Back it out and let it idle in the driveway, it is still knocking. I decide ot take it for a ride and when I push the clutch in, the sound goes away. As im driving the noise comes and goes and I can feel pushing in the clutch pedal. I am thinking it is the throw out bearing, so now I am in the process of going back and forth on the final price of the car. I wanbt him to take 800 off because thats the price of a clutch installed. Opinions