K301 in model 123, need rear oil seal
 

My 123 developed an oil leak that appeard to be coming from behind the pulley that is driven by the starter/generator. I have taken everything apart so I could see the rear shaft coming out of the case. I believe I need P/N 4703207.
Can someone give me an idea of how that seal gets replaced now that I have access to it?


And, please suggest where I can order a good seal. (on edit..... is this it?? https://ccspecialties.org/pics/KH-X-...OIL%20SEAL.jpg)
Thank you.

Run 3 short screws into the seal equally spaced and pry it out.
To install the new seal push a piece of pipe the same diameter as the outer edge of the seal work well, or gently tapping on the outer edge with a rubber mallet works. But be gently you don't want to warp the seal.

As for where to get a seal I can't help you there I use a local shop.

Thank you for that.

Yep…. I’d say that’s bad!

I bet it could have gone longer LOL but its good you replaced it:biggrin2:

Well, 1966..... now it's 2026........ I'd say that's not too bad! (I don't know if any other engine work has been done other than me replacing a broken connecting rod a couple of years ago.)

Here's something interesting I found. A NAPA part that is listed as a replacement for OEM 4703207, but in the specs it only lists the Kohler 10hp.

https://www.napaonline.com/en/p/SME7...id=SME4703207S

I'm going to check it out.......

This seal turned out to be the Proline part. Of course, it works good. I have asked NAPA to get me 2 more for my shelf.

I also cleaned and repacked the PTO bearing. The 123 is now ready for the PTO to be installed.

Before that happens, I have ordered a new friction disc and an adjustment gauge for the PTO. Figured I would put this thing back together properly…..

:IH Trusted Hand:

Well, my disc and gauge arrived today..... USPS came through nicely this time. Unfortunately, I won't be able to do anything with it until at least next Tuesday.
I have never adjusted the PTO assemby, but think I have plenty of information AND the gauge to get it done. Once I get it back together, I have another test to do: I'm going to try an A144 belt to see if it will drive the tiller ok. I really think it is asinine what the "correct" belt costs.... absolutely ridiculous. They build a very nice GT AND tiller, but insist on using a stupid-size belt, then charge a small fortune for it.

I hope it works.