Vauxhall Zafira Oil Pump Problems

the oil light comes on every time i stop with engine still running,or if i drop to about 1000 rpm.itook a chance and have done about 1000 miles since it started .the car seems to be running just as good as it always has,with no problems.but...

Hi, have just been told by my machanic that the timing belt tensioner bolt has sheered and some valves have been bent is this a common fault on Zafira`s?? the timing belt was changed 7000miles ago and i cant see why it would sheer this bo...