Hi, i have a 1963 johnson 28hp motor and when i decided to change the lower unit oil, i accidentally removed the shift linkage pin thinking it was the bottom oil plug. (yes, this is the 1st time i've ever changed the oil). so i got the metal thing the falls down back up so the pin can be screwed back in. but now the shifter is stuck in reverse, and won't shift even to neutral when the engine is turned over (not started). just wondering before i go start it up and destroy something, did some piece in the lower unit fall out of place, thus requiring the removal of the lower unit? i noticed in another post that when ya start the engine the drive gear goes back where it should. oh ya, when i just put the screw back in without screwing it in and trying to shift, it seems to be putting pressure downwards (towards the floor) on the screw. thanks in advance, andy<br /><br />btw, the whole entire thing worked perfectly, up until today.