nigel crellin

a few months ago i jacked my g60 up to change the front left hand wheel. as i jacked it up i seen the wheel was loose, luckily it wasnt actually the wheel but the nut on the hub had backed off. i hav now tightened this. wen i am driving in a straight line or turning right i can hear a grinding noise, when i turn left the noise dissapeirs. any1 hav any suggestions??