Can someone give me specific directions for replacing my water pump and related gaskets and seals on my 1988 Merc. 90hp motor? The serial number is: OB302485 if this helps. I am not sure if I should have the motor in forward or reverse or neutral when removing the lower unit containing the water pump? Please advise and what about sliding the lower unit back up into the motor afterwards, any special instructions?
THANKS SO MUCH!