Clifford E Sturgis , KY August 15, 2015 Appliance: Model KITCHEN AID HEAVY MIXER Noisy and a light oil substance leaking onto the surface of the mixer Replaced the armature bearing at the front of the mixer next to the gear case and replaced the gasket on the gear case. 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours