NJ Saltwater Fisherman Forums

Boating => Mechanical Forum => Topic started by: Quadruplecccc on April 04, 2008, 08:04:22 PM

Title: lower unit trouble
Post by: Quadruplecccc on April 04, 2008, 08:04:22 PM

motor fails to shift into neut. and rev. dropped lower unit, then tried shifting with throttle box. everything is free here. motor is a 79' 80hpr merc. i checked the nylon pieces that assemble around the shift shaft. they seem ok. i can turn the main shaft, the prop turns in fwd, when i turn the shift shaft , i can't find a neutral position and also can't find a spot where the unit will go into reverse. not sure what iam doing wrong. i suspect something let loose or seized up below the shift shaft.  i'm hoping someone might have a logical explanation of how the shift linkage works and how to realign the parts to get it to work again. motor is too old to dump tons of money into it so i fix what i can by myself. please help!   thanks   chuck

Title: Re: lower unit trouble
Post by: rugman on April 04, 2008, 08:13:27 PM

over the winter i but it in gear and it would not move and i gave it a good shot and it went in , dont know why , maybe some ice  got in the cables

Title: Re: lower unit trouble
Post by: Hotrod on April 04, 2008, 08:39:18 PM

This is a must!!  The best 25$ you will ever spend.  Go for it
http://www.themotorbookstore.com/mercury40.html

Title: Re: lower unit trouble
Post by: mboy on April 05, 2008, 02:03:57 PM

Forget the Seloc and get the factory manual. I have both for my engine and the factory is far better.

Title: Re: lower unit trouble
Post by: Hotrod on April 05, 2008, 03:04:25 PM

Yes.  One or the other. wasn't sure which was better.  I have both for my motor.  but a must have.