guru
Guest
reading your posting i would asume the grooves are where the seal runs..heat on the shafts doesn't go to well ..we have build some of the shafts up using a epoxy liquid metal then had them machined down smooth and have been pleased with the results the seals stop leaking...we have also had the gear machined of the shaft and new shafts made and gear welded back on which have been very successful not to mention cheaper hope this helps good luck