Cheers for the reply.
there was no fan used, me and my mate was upstairs speaking to another guy while the car was put on the ramp, i do not if the oil and coolant was checked, there was no road test done the car had just come from surrey to slough on the m25 with no probelms, there was one run done which i did not see, which showed 139 bhp, and then a second run do bout 10-15mins later, during this run a small popping noise was heard and then the guy backed off and turned it off, he then said give it a run up the road, he started it up and when moving it off the rolling road some white smoke came out the back, and a rattle started occuring before we could do anything the engine stopped and that was that, it has hydraulic-ed and bent no 4 conrod.
The car stopped at idle but i suppose it went while he was doing the second run???