Super bummed:(. I just finished a complete FL250 engine rebuild with new Nachi (made in Japan) bearings, good condition crankshaft and after pressure testing all seemed well. Unfortunately, now that I've got everything dialed in I noticed a small amount of oil getting passed the oil seal on the clutch side of the motor. I sprayed some carb cleaner but rpm's remained the same. I'm going to keep an eye on it, but with the kids over for Thanksgiving tomorrow it'll be getting some use. Could it be a bad (brand new) bearing? Crank? I guess when I get time I should redo the pressure test. Oh well - Hope ya'll have a good Thanksgiving, Marty.