Okay after getting her apart, i followed instructions very carefully and marked position against shaft etc. first question is, the mark on the shaft came off so now the balance is off; does it need to be rebalanced?

and second question is the top bearing (in three parts, the cover, backing plate and actual bearing) not the brass one's with centre piece. the inside diamater is too small so it doesnt spin freely on the shaft, its the same with the washer insert too i reused the old one to test but not too sure if i can, also when everything including the split pin is installed it spins nicely, but as soon as the compresser wheel is installed and fastened it doesnt spin freely?