There is more than one way to skin a Johnson!

[labrador-guy]

I purchased a leg for my 15hp Johnson from Ebay.  My old one was leaking internally some place and I wanted to fix it.  I found one at a reasonable  price and when I got it I pressure tested it.  Shift seal was leaking so I pulled it down and fix it.  It look good inside and after a seal change it tested great.   I hauled it to the Big Fish lake and the motor ran good the gear case jumped out of gear something awful!    I tip it over and pulled it apart.  I went to my stash of parts and found a complete gear set.  I don’t remember what they were from.   Five bolt lower gear cases but the gears are different.  Did the ten horse have the finer gears?  Cross my fingers and post some pictures.   The shifter dog is also different.  The coarser gears looks to me like an improvement.   I counted the teeth and the gear ratio is the same.  Any thoughts on this stuff?

dale

My gears are on the left.

 

[David Bartlett]

Dale,

I have swapped stuff like this between 18hp’s of  various years with good results. What have you got to lose?

David Bartlett
Pine Tree Boating Club Chapter

"I don't fully understand everything I know!"

[Tubs]

I Think you’ll find the straight cut gears whine quite a bit compared the hypoid gears. Some folks like that.

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.

[labrador-guy]

Tubs wrote:

I Think you’ll find the straight cut gears whine quite a bit compared the hypoid gears. Some folks like that.

Ya I like a little wine with my cheese!

dale

[Don]

The gears on the left are a later style spiral cut design.  You would have to change the pinion as well to have a matched set of gears.  The problem with these gearcases is that the complete assemblies can be swapped through many years.  But, there have been many changes through the years so the individual parts may not be able to be interchanged…

[labrador-guy]

Don wrote:

The gears on the left are a later style spiral cut design.  You would have to change the pinion as well to have a matched set of gears.  The problem with these gearcases is that the complete assemblies can be swapped through many years.  But, there have been many changes through the years so the individual parts may not be able to be interchanged…

Don what I liked about the coarser gear set is the shift dog.  The lugs seam to me to be deeper and the entire dog is wider.  Time will tell how it works.  I put it in with the fine set of gears.  It seams to work good so far!

dale

get’em wet….don’t let’em set!

[Don]

You would know by now if it wasn’t going to work out.   Like Tubs says, I one of the guys who loves the old style gear whine!

[Tubs]

Its gonna sound something like this.
Video Link- https://youtu.be/IBMiwPOS1yo

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.

[Author]

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