From Pa and basically use grinder for sausage . Our normal batch size is 100 lbs a couple times a year . I have a LEM that works well but one of the group has a old General D Grinder that was past down from his Father In Law . We would like to get it operational as a back up and also because it was passed down generation to generation .Its leaking oil out of the center hole where the grinder attaches to the motor .If you tip it up you can see it flow and it appears around like a seal? Could it be overfilled as cant read sight glass or is there a seal that could be bad? Trying to help him fix it so looking for advice and any info someone might have on General D? Any parts available . Looks like SAE 30 oil is in it. Thanks