OMC Shift Rod O-Ring Removal

[aquasonic]

At last, the bushing is removed using Frank’s method. With some heat around the bushing housing, flipped the lower unit over, and the bushing drove out nice and easy with a 1/4″ steel rod. The bent shifting fork in the picture was the reason for opening the gearcase in the first place. The shifter pin was totally disconnected from the shifter rod.

 

[billy-j]

While one the subject of shift rod bushings. Why do some OMC motors have a fiber washer in the shift rod bushing bore and others do not?

[fleetwin]

I’ve seen this before, and some of the newer models have a plastic washer.   What model are you working on with a fiber washer?

[frankr]

[fleetwin]

Thanks Frank, I remember that now…

[seakaye12]

Yes Frank;  Thank You!  That was very helpful.

[billy-j]

fleetwin wrote:

I’ve seen this before, and some of the newer models have a plastic washer.   What model are you working on with a fiber washer?

It was a 1956  Johnson 30HP.

[billy-j]

frankr wrote:

So to clarify ( type one bushing ) drive it to the bottom edge of the little chamfer  on the top of the bore in the die cast lower unit housing the bushing enters. In doing so is there space for the whole ” O ”  to actually travel slightly up and down in the bore when moving the shift shaft?  Also any pointers on installing shift shaft thru  “O ” ring without damaging new  “O” ring? I usually slightly smooth the sharp edges of the end of shift shaft were it goes into shift coupler.

[frankr]

That is correct.  As for damaging the new o-ring, I don’t think that is a common problem.  Of course, any obvious burrs should be polished off as you suggest.

[Author]

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