76 merc 850 wont go in reverse

ml5

Cadet
Joined
Dec 3, 2009
Messages
9
I have a 76 merc 850, I have took of the lower unit to replace the impeller ,when i reinstall it and start the motor in neutral the prop spin without me putting it in forward and I even try to but it in reverse it would go forward. Is there something that i did when i reinstall the lower unit. thanks for any help
 

Moody Blue

Captain
Joined
May 24, 2004
Messages
3,136
Re: 76 merc 850 wont go in reverse

Is there something that i did when i reinstall the lower unit. thanks for any help

Yes. The upper and lower splined shift shafts are not aligned properly. Both the control and the lower unit must be in the same gear before reinstalling the LU.

Lots of info on this topic in this forum. Do a search and read through some of the postings. Lots of good reading.
 
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