I decided to change all the bearings and seals in the crank cases whilst the crank is out for rebuild.....

Today I removed the water pump bearings and seals but I am now worried that I may have caused some damage or even scrapped the outer casing The problem is the water pump seal set (19217-KV3-831). Can anybody advise if the steel shell is part of this seal or is it supposed to be permanently fixed into the casing.... I reached the point of no return when drifting it out, so its out now but completely wrecked.

Thanks for any help.