Ok got it, thats Jerry!!! The oil pump outer rotor ring did finish flush with the block, however its the housing with the shaft that has the play in it, bout 5mm, it sort of can slide in and out??

Whats with the two lugs that are on the housing also, the top on looks blocked off on the housing and the block. But the bottom one looks blocked too but theres a gallery in the block coming into it? or is it not blocked, the bottom one on the housing! Im ramblimg on here but i think u know what i mean <img src="/forums/images/graemlins/scared.gif" alt="" />

Regards.
Adam.