Solved – Can’t drop lower gear case 1957 RDE-19

[Ghost_n_the_shell]

Evening folks!

I can’t seem to drop the lower gear case from my new-to-me 1957 RDE.

I unbolted the bottom bolt from the brass coupler (leaving the top in place). I have removed the 6 lower gear case bolts (I have left one partially threaded just so it didn’t fall off on its own when I left it.

I believe the rod is still attached, as I moved the gear forward and then into neutral and the rod / coupler was shifting positions.

Any ideas to get that rod to let go?

[JACQUES]

apply some lubricant on the brass link but  things won’t come apart if the drive shaft splines are rusted  in the crankshaft .

flip the engine over and driblle some lubricant down the drive shaft … let is soak  a bit and retry harder and firmly with rubber mallet wacks

is this a new to you engine ???  when is the last time the LUwas dropped for the impeller change ??   Got the service manual (free download)

https://www.socalaomci.com/library/johnson_service_manual_10th_edition.pdf

Topic: Problems removing drive shaft from Johnson QD-16 10hp – Antique Outboard Motor Club,Inc

 

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[Buccaneer]

You could always remove the other bolt from the shift rod connector
and see if it drops then.

Prepare to be boarded!

[JACQUES]

that is what  the book says… upper bolt needs to come out !!

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Ghost_n_the_shell

[Don]

I really don’t believe that shift rod connector is causing the issue, but anything is possible.  Like others have said, remove the other bolt also and see if that helps.

I’m hoping the driveshaft is not stuck into the crankshaft…

How many bolts hold this gearcase in place?  5 or 7?  There is the one through bolt towards the rear, was that a bolt that you removed, or a stud with a nut on it?  If it is a stud, salt may have built up around the stud jamming it into the exhaust housing, preventing you from removing the gearcase.

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Ghost_n_the_shell

[JACQUES]

gost need to furnish answers…to Q:

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[Ghost_n_the_shell]

Don wrote:

I really don’t believe that shift rod connector is causing the issue, but anything is possible.  Like others have said, remove the other bolt also and see if that helps.

I’m hoping the driveshaft is not stuck into the crankshaft…

How many bolts hold this gearcase in place?  5 or 7?  There is the one through bolt towards the rear, was that a bolt that you removed, or a stud with a nut on it?  If it is a stud, salt may have built up around the stud jamming it into the exhaust housing, preventing you from removing the gearcase.

I removed 6 bolts. Along the bottom of the bullet. I removed the bottom bolt in the brass coupler (everything I read said don’t remove the top one – but I trust the manual obviously you’ve shown me).

I have NOT removed that bolt in the rear (shown in the photo). Is that required to come out?

[Ghost_n_the_shell]

JACQUES wrote:

apply some lubricant on the brass link but  things won’t come apart if the drive shaft splines are rusted  in the crankshaft .

flip the engine over and driblle some lubricant down the drive shaft … let is soak  a bit and retry harder and firmly with rubber mallet wacks

is this a new to you engine ???  when is the last time the LUwas dropped for the impeller change ??   Got the service manual (free download)

https://www.socalaomci.com/library/johnson_service_manual_10th_edition.pdf

Topic: Problems removing drive shaft from Johnson QD-16 10hp – Antique Outboard Motor Club,Inc

 

And thank you for responding. This was a “free” motor I got in a giveaway section of a cottage dump. People can put stuff there for others to take.

I have no idea of the history – but I’m betting it hasn’t been touched in 20 years.

[DAVID]

Yes remove the larger bolt also.

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Ghost_n_the_shell

[Ghost_n_the_shell]

RESOLVED:

The lower came off easy with that big bolt at the rear. Very simple!

looks good and rust free thus far!

[Author]

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