Whale.. this is just an educated guess, but since you say you can move the inner shift cable if you hold onto the outer jacket I'm thinking that the inner cable itself is ok and that somewhere there is a clamp that has let go/rotted/loosened up and is now allowing your outer jacket to move. Not knowing how the outer jacket was held in place originally prevents me from making any guess as to what is wrong. As to whether or not it will require replacing the assembly or simply tightening a clamp depends on what you find when you actually look at it. 
__________________
1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer
1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer
1996 V21 w/1993 200HP Mercury on a Shoreline Trailer
All towed by a 5.7L Hemi Durango.
If God didn't have a purpose for us we wouldn't be here, so
Live simply, Love generously, Care deeply, Speak kindly.
(Leave the rest to God) 
Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.
|