Nikolette K Saint Louis , MO June 09, 2015 Appliance: Maytag Dishwasher MDB8600AWB Maytag Dishwasher Mdb8600awb: No water circulating. How to replace Motor Seal Kit. Motor shaft was stripped, replaced with new shaft from Motor Seal Kit. Impeller was also cracked, so replaced it as well. I did run in to a small problem, the chopper blade was pressing against the metal grate on the piece that goes back over the motor seal. I spent about an hour messing with it, but thought maybe once it's all together it'll be fine. When you screw the impeller on, it pushes down the seals, which pushes down the chopper blade. Video on Motor Seal Kit page made it an absolute breeze. 17 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes