Lower unit disassembly... Help

[koolaid]

Anyone ever take apart a johnson lower unit? I don't mean take it off the powerhead, I mean disassemble the gears and stuff. I have a cracked case and would like to see if the guts are still good so I could swap them into a new case if possible. I have taken out all the screws and I don't want to crank on it and break something. If you have done it before, gimme a short rundown on the process please. Thanks!

 

[F_R]

Re: Lower unit disassembly... Help

Don't have a clue what Johnson you are working on.

 

[mikesea]

Re: Lower unit disassembly... Help

I'll take a guess and think you have a 3cyl,4 cyl or 6cyl with through hub exhust.After removing the prop stuff,you should see 4 bolts that hold the carrier ,the carrier at that point would need a puller (usually)to pull it out because there are orings that kinda stick it in place,once the carrier is out,there are snap rings that hold the gears and shaft in place,you will also need to take the pinion gear nut off the shaft to allow the pinion gear to drop and drive shaft to be removed,this will allow the remaing gears and prop shaft to be removed.You will need to get (borrow )a shimming tool to adjust the proper height of the pinion gear,an OMC guy could do it for you I guess for $$$.That is a fast ,not necessarily verbatim of how it should go.A manual would be of great help.

 

[koolaid]

Re: Lower unit disassembly... Help

I'll take a guess and think you have a 3cyl,4 cyl or 6cyl with through hub exhust.After removing the prop stuff,you should see 4 bolts that hold the carrier ,the carrier at that point would need a puller (usually)to pull it out because there are orings that kinda stick it in place,once the carrier is out,there are snap rings that hold the gears and shaft in place,you will also need to take the pinion gear nut off the shaft to allow the pinion gear to drop and drive shaft to be removed,this will allow the remaing gears and prop shaft to be removed.You will need to get (borrow )a shimming tool to adjust the proper height of the pinion gear,an OMC guy could do it for you I guess for $$$.That is a fast ,not necessarily verbatim of how it should go.A manual would be of great help.

Was what I was looking for. Tools I don't have and things someone else can do.
thanks