Screwdriver and long nose pliers will get the old 1 out.
New 1 just lightly apply oil on the inside rim of the seal and slide it on, gently and evenly.
Once its at the point you can't push it by hand anymore gently tap on the seal with a 1\2" socket extension bar tapping gently and evenly around the edge of the seal till its all nice and flat.
Thats what i did, wether its the right way or not i wouldn't know but it worked for me.
Oh and i wouldn't use that belt pulley again either, but thats just me!
And just make it even harder for next time i applied loctite to everything when it went back together :o
I hope it isnt me doing it
