i have blown it through with some wd40, and then spun it up - no differance. I did remove it from the car, and it still needs a nudge to start turning, might give it a go with some GT5 later.
Thanks though,
Suppose the next step is to "carefully" open it up and check it is clean.
It must be said, for a rally car the motor is not in the best place, I think I will need to build a sheild for it, as it is open to the underside of the car. there is plenty of space in the shell for airflow so should not overheat.