I am working on restoring Kim's D10 SIII now and found this tonight after removing the front end. I had noticed that something rubber flew out of the fan when I started it few days ago. Picked it up and it was one of those little sticky backed rubber feet they give you to put on the bottom of routers or modems (and other small electronic devices that need feet to keep from sliding around a table). Looks like someone had replaced the governor bushing without removing the governor cover, then glued one in as a rubber plug. It's interesting that no oil I could see was leaking out of this, yet the oil pressure on this engine is fairly good (on the M of NORMAL) so their bandaid actually worked until I started scraping grease away and knocked it loose. It will surely leak like this though.
I have a couple of other covers, but I'm considering trying to TIG a plug over the end and make it look like the original. If I start tearing into the engine, I will risk opening up leaks, and this tractor runs so good and is tight. The only thing I wonder is what you'd use on pot metal, maybe silicon-bronze, I have some I was going to try (solution looking for a problem to solve)? Might be just a better bandaid than the original bandaid. I don't even know if the stuff will weld, but I can test it out on the thermostat housing I broke when I was taking the front end off. I won't be using that as I already have a replacement, and it's made of the same flimsy pot metal.
I have a couple of other covers, but I'm considering trying to TIG a plug over the end and make it look like the original. If I start tearing into the engine, I will risk opening up leaks, and this tractor runs so good and is tight. The only thing I wonder is what you'd use on pot metal, maybe silicon-bronze, I have some I was going to try (solution looking for a problem to solve)? Might be just a better bandaid than the original bandaid. I don't even know if the stuff will weld, but I can test it out on the thermostat housing I broke when I was taking the front end off. I won't be using that as I already have a replacement, and it's made of the same flimsy pot metal.