CS2220 Engine Rear Oil Seal

[Slomotion]

I have a Kioti CS2210 that is little more than a riding mower on steroids, but I like it a lot for around the property. A bucket, 54" mowing deck, Quick-change forks, and a 3pt for carrying ballast in the winter. It has less than 100 hours, (96+) and is going back to the dealer in a few days for the second rear seal replacement. Fortunately, it's still on warranty, but I'm beginning to wonder if this is a Kioti thing, or if I may have gotten the runt of the litter.
While it's warming up there's a small, but constant drip from the back of the engine. The last time they replaced the seal - at about 50 hrs, - they replaced the seal boss-plate as well. In spite of the leak, I have yet to have to add oil, and if it weren't parked on concrete I may have never noticed, but now there's an old baking pan that lives under it.
As I mentioned, I like it a lot for what I use it for, but after the warranty wears out may not be able to afford it.
Has anyone else experienced this in Kioti?

Thanks

 

[Kioti-Tech13]

Out of the numerous CS10 or CS20 series we've sold at my dealership, I have yet to hear of one coming in for a rear main seal issue.
Is it a Shibaura Engine or Daedong Engine?
If I was doing the job, I would verify the rear main seal is leaking again and contact Kioti Support. If its not due to the tech installing incorrectly the first time, Kioti might need to get you a new engine.
The main bearings may be worn allowing the rear of the crankshaft to hop & wear down where the seal rides, because its not spinning in a circle, it may be spinning more like a small oval.
Of course they would need to send in an oil sample if this was the issue.