Ok, thanks. I appreciate it. I just called and talked to the service manager and what he said was the leak was in an area that a new sleeve wouldn't help and he wasn't too enthusiastic about the prospects of any sealer being much help either. He mentioned a brand called "duraglass" that you pour in the radiator and he described it as "it what it is".
A thermostat for a hole in a cylinder?
Yep, if it's not getting hot enough to seal that hole. Seen it happen before. I'm a field service guy with a truck with welding machine, compressor, crane, and tools.
That would be wonderful. I think what I have to do is choose one of these products, flush the block to get it as clean as possible, and follow the instructions. A friend told me he did this and rigged up an old radiator to do this to avoid fouling the one in the tractor. He claimed that he used the tractor afterwards for a good number of years and then sold it.
The Iseki engine is a parent bore engine and doesn’t use sleeves, thay is why they don’t offer any.