Everything Sounder said. The thing about the gaskets between the cylinder and the cover is the oil port is much happier when the mating surfaces are square. That is why you should use gaskets at the "other" end of the cylinder.
Honing, I would recommend just enough to put cross hatch marks all around, enough to assure there are no highs, maybe 15-25 seconds @ less than 500 rpm.
I would not recommend taking out all scratches. They won't harm the Oring unless very deep and wide, then you probably need a new cylinder. Any leakage from a few scratchs should not affect use. Dimensions of the cylinder are more important. That is just my opinion, fwiw.
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a Company you can trust and have generous return policies! Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ More Info ]
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.