Purchased a seal for my Hayward SP2605 pump the other day. It was replacement PS-201 from US Seal. I noticed that it was slightly longer than the old one. Now the motors thermal cut-out turns it off after approx 20 seconds. It comes back on after it cools down but then it cuts off again. I ran the motor without the impeller assy and it sounds fine and will run all day. It seems as though the seal is creating enough friction to make the motor run hot. Isn't the seal ceramic against graphite? One would think there would be very little friction.