I believe coolant flows through the idler pulley on all 3800 series II motors, the coolant elbows which have a knack for disintegrating upon removal are located there right? They were on my L26, both snapped on both ends when I pulled my idler off, along with a bunch of coolant flowing out everywhere :P

Pick up some coolant elbows now if you don't have any or you've never replaced them, because they will probably break.