Ok so I replaced the water pump and have tried to get the unit back and when I do the unit won’t shift through the gears. With the unit off I can move the shift shaft from rev,nuetral,and forward. I have the cables off because the remount control won’t go into rev even with the cables off of it.. can it be fix? The cables work good. Should I be able to shift the motor by hand with the cables off by moving where the cables are supposed to hook too? Is it worth trying to fix the remote shifter or should I replace it. The motor is a 1986. HELP and THANKS