Didnt realise youve had the belts done recently. Timing is probably off then, take it back.

Id still try the sensor as well if you can get hold of one.
 
They are real easy to get wrong and nothing locks up when doing the belt so when you pull the belt on it pulls the crank around. Marking is pretty vague on the cam cover and can line up kinda in two places.
 
Ok, so just had a call from garage.... It's all done

The knocking noise was apparently the hub nut coming loose :s

The timing was checked and is spot on. So gonna try a sensor tomorrow.
 
TBH, just easier getting from GSF (2 mins from work).... cheers anyway mate