does the 1964 6 hp have only one long shift rod? if not, where is the spline located and how does it come apart to remove the LU? The LU has come down only 3/4".
I think I have a 64 6 hp merc by referance to the SN which is 1661799. Anyway I can't get the lower unit off the motor to replace the impeller. It came down about 1" and stopped it seems because the shifter shaft won't pull out of the lower unit. I removed the power head so I could see better at...
