1977 Mercury 850 Question

Shadow662

Seaman
Joined
Jun 29, 2008
Messages
57
My question is when the throttle is in the neutral position the propeller still spins slowly and the reverse isn't working. When she is put into forward gear the propeller spins like normal. Anyone know what could be wrong that the propeller spins in neutral and don't have reverse?

She worked fine last year until the water impeller went out. So we replaced that this year. We put it all back together and now this. I'm not sure if the 2 can be related or if something could have happened after we put in the new impeller.
 

rabeck5792

Petty Officer 3rd Class
Joined
Mar 2, 2008
Messages
75
Re: 1977 Mercury 850 Question

sounds like shift in misindexed.when you install gearcase,it should be in forward & so should the control box.
 

Shadow662

Seaman
Joined
Jun 29, 2008
Messages
57
Re: 1977 Mercury 850 Question

I didn't install the impeller my brother in law did.
Is that something that can be caused when replacing the impeller? Any idea how to fix it?
Thanks
 

sportsmanphil

Petty Officer 1st Class
Joined
Mar 8, 2009
Messages
257
Re: 1977 Mercury 850 Question

Remove the lower unit, put the throttle in forward, reinstall the lower unit.
 
Top