alignment of pump after new belt fitted?

Hi'

Can anyone tell me how to set the deisel pump on an MG Zr after fitting new timeing belt, I have set crank shaft at TDC using pin in to locate flywheel and lock, I have made sure timing marks correspond therefore the 2nd belt at rhs of engine driving fuel pump cam is also correct but it would appear I have moved the fuel pump shaft, what is the procedure for bring the pump back in time with the cam