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Hello my name is ***** ***** am I speaking with?
Is this an SX-A or a SX-M sterndrive?
Did you have any specific or general questions that you wanted me to answer? Or are you asking where the leak is coming from?
If you look at the sterndrive, there is a shaft that runs from the top of the sterndrive through the transom of the boat, and into the back of the engine. This is the input shaft. The input shaft has an oil seal on it where the shaft enters the sterndrive. This oil seal is the one that's leaking. What it's doing is dumping oil into the input shaft bellows, and the oil is leaking from the bellows, past the gimbal bearing, and into the back of the boat.
That's what is going on with it. Did you have any further questions on the issue?
No not those. Click this link to pull up a picture, the one that is leaking is #11
is there any other way that gear oil can get into the bilge besides the input shaft seal(s)?
No sir, it's specifically the oil seal on the input shaft.
Was there anything else?
1 correction, in the picture I sent you the seal is #9, not 11
To replace the seal, no. To replace it the sterndrive comes off the boat ad the input shaft assembly gets removed from the upper unit. When the shaft is out then the circlip gets removed (#10 in the picture) and once that is out the old seal gets punched out and the new seal gets punched in. then it all goes back together.
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The orings are to keep dust in the engine compartment out of the gimbal bearing and bellows. The transom gasket for the sterndrive will come with new orings so you would end up replacing those as well as part of the overall job.
The gasket is not shown in that diagram, but if you click this link below, this is it.
I actually have to get running, have to run out to dinner. Was there anything else?
It keeps water out of the bellows. There should have been a gasket there...
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