Coupler style shift mechanism or Cam style shift mechanism, on force 120 ?

[HMC49]

I have a 91 Force 120 and goofed by turning the shift shaft while changing the impeller. f/n/r still work but this seem a little off. I think I may have turned the shift shaft while doing so. Would this be a sign of a cam style mechanism.

 

[Frank Acampora]

Re: Coupler style shift mechanism or Cam style shift mechanism, on force 120 ?

NO! Shift shaft on Mercury lower units have detents for F-N-R. If you had turned it, you would feel it and would no longer be able to shift into one gear. besides: the shaft is splined at the top. Was your shaft splined?

 

[HMC49]

Re: Coupler style shift mechanism or Cam style shift mechanism, on force 120 ?

After looking at the manual closer it might be call the lower shift rod that got loosed.

 

[jerryjerry05]

Re: Coupler style shift mechanism or Cam style shift mechanism, on force 120 ?

The 91 has the older style Force shift.
You remove the set screw?
If so the lower unit probably needs to be taken apart???