I am reaching the latter stages of timing chest assembly, but i keep hearing tales of doom about the standard `C` two piece idler boss-tales of it disintegrating with catastrophic results don`t aid restful sleep!.Mine is the original item, but looks fine, no cracks, or appreciable wear.I believe the ideal is a one piece item, but the new ones supplied are a two piece affair anyway, although one would presume stronger than original. How much of a liability are the originals? Is the accepted wisdom to dump it and go for new as a precaution. Also, while I`m on-torque figure for the half time pinion nut anybody? cheers, Bob.