The new pump came with a long bolt, a huge washer and a nut.
I quess the idea must be to press in the pulley buy screwing the nut and washer against the pulley headed for the shaft.( The illustration shows this) But im not really sure if ill sucseed- Maybe the boys are right-ill need a spesial tool(installer tool)
Funny how complicated this shoul be - actually my hardest headache since getting out controll-arm bushings....