Reinstalled the PSRU belt, bearing support, and tighten the belt and the bolts behind the PSRU. To help with the bolts under th flywheel, I ground down a 9/16 open end wrench to fit between the bolt washers and the flywheel.
With the new idler pulleys, the required belt now is NAPA Micro-AT 060445 which measures 20mm x 1148mm.
