Yamaha - Impeller Shaft Assembly - 81E-12450-00-00

Pump seal was blown, I ordered the gaskets/seal, and temp sensor, however the sensor is on back order. There is an o-ring in the head assy spigot that is no longer availiable, I'll have to get one to fit from my kit of o-rings (I HOPE!). I took it apart, and discovered the impeller blades were MISSING, all melted off (plastic or derlin material)! I ordered the impeller assembly, and put the pump back together. It was VERY HARD to drive out the mechanical seal from the housing, and equally hard to press it back in. The bearings were OK though! Funny, the mechanical seal is in TWO parts, however all the pix show it as ONE part, I had to figure out which way it goes, the two parts mate only in a certain way! I'll get it installed on the sled this weekend, and trail test it!