just bought an 85 9.9 and it needed a water pump.<br />while replacing the pump which i have done many times on larger ingines. the shaft came out of the lower unit. Is this ok? also seals for shaft look worn any tricks to getting them out? I bought a shop manuel but it is lacking in details. should I take it to a pro? Dont want to spend alot but it is going to be my sons first boat & motor. Thanks for any help.