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Mid 1970bs 75 Mercury drops into forward

S

srhite

New member
"A neighbor has a 7.5 Mercury

"A neighbor has a 7.5 Mercury from the mid-1970's. It drops into forward all by itself when the motor is revved. With the lower unit removed, it drops from neutral to forward by just turning the propeller. Is it worth trying to open up the lower unit to fix it? Do I have to buy a special tool or is there another way to open it up. What direction does the cover turn?"
 
Shift cam worn? I believe the

Shift cam worn? I believe the nut is marked " on - off "
 
"It does the same thing with t

"It does the same thing with the lower unit on a bench. When it's in neutral, a couple turns of the propeller makes it drop into forward. I believe that it should stay in neutral no matter what I do with the prop, right?"
 
"Isn't the shift cam under

"Isn't the shift cam under the carburetor? If so, it still drops into gear with the lower unit removed and in a vise."
 
THE SHIFT CAM IS IN THE LOWER

THE SHIFT CAM IS IN THE LOWER UNIT!!!Perhaps there is a problem with the pin that is internal to the propshaft.You need to take this thing apart.
 
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