Remember, that SC is spinning more than twice as fast as your engine. That generates heat. Then while it'* trying to cool down, it'* picking up heat from the massive heat-magnet below it....the rest of the drivetrain. AND engine coolant is ported through it.
it wasn't one of those easy out'* u ''drill '' in . it looks like a centre punch . ur supposed to pre-drill a hole and then hammer that sucker in . after it'* in snug , u use it as a handle i didn't have to drill a hole though since there was one there to start with .
thnx for all ur help though guys....... ur the best