i dont know the history no, was bought of a member on here, and was assured it was running ok, and barely stressed at all on a stage 1 saph if i remember correctly. When i check the shaft play it feels good.
It was primed when fitted, checked the oil flow from the turbo feed, seemed fine, then cranked the engine over for a while without coil connected to prime. The noise seems more apparent when revved quite high, and then throttle released, on overrun. Also, rattles loud when the engine turned off. Is there any other part that could cause this noise? the followers were also replaced, and still not convined they have bedded in yet, the car has only been run on the driveway since.