GREAT PRODUCT. I HAVE BEEN INSTALLING THE SMALLER SERIES 100 FOR 37 YEARS. THE INSTALLATION WAS THE SAME, EASY, AND STRAIGHT FORWARD. ADD A LITTLE OIL TO EACH OF THE OLD MOUNTING BOLTS FOR EASY REMOVAL THE NEXT TIME. MAKE SURE YOU REMOVE ALL OF THE OLD GASKET BEFORE INSTALLING THE NEW ONE. ADD THE OIL AS SOON AS THE BEARING ASSEMBLY IS MOUNTED AND BEFORE YOU REMOUNT THE MOTOR TO GIVE THE WICK TIME TO ABSORB THE OIL AND GET IT TO THE BEARING.