In Reply to: Valve seat replacement posted by Mike Warner on April 08, 2018 at 13:30:02:
Are the seats too far gone to be refaced?
95% of the time, valve seats are refaced by grinding a new face on the seat. ...This is a common procedure which can be done with the engine in the tractor, but does require specialized tools.
If the engine is out of the tractor, most automotive machine shops and some repair shops will have the tools required.