What is it? grinding noise from the front when accelerating

when accelerating rapidly grinding noise is heard from the front specialy when turning left at the same time. it only sounds when going from full stop to 1-5mph then the noise stops when there is no g-force. i went to a dealer they checked front wheel bearings they'r ok. they said it might be the powerstearing pump. i think not. so any ideas

 

Engine mount broke! and the fan was grinding the shield around the FAN.
whe i was accelerating the block engine was tillting and the fan is attached to the engine so it was tillting with it. engine mount in a dealer $194.00cnd