The motor has a knurled crank and the rear main is dripping a small amount on my garage floor. I did this temporary fix for now. I am going to see if it gets worse over time, but its not that big of a deal. The motor has a girdle and will have to be removed to replace the rear main. I put two layers of oil absorbant pad beneath a piece of wire mesh. This is just something for now to keep the oil off my floor.