Can anyone give me some tips on thread restoration on a Case tractor

First, the thread on the belt pulley is damaged. It is slightly flattend all over and at the end of shaft is burred so I can not get a nut on. I think the thread is 7/8 UNF. I intended to carefully file a taper on the end of the shaft and then use a die nut to clean out the thread. However a friend has told me that there is a thread restoration tool that can do a better job. The tractor is on our farm 30 miles from the nearest town and it costs an arm and leg to get a mechanic out to do a job like this. Anyone have any tips on how I should do the job?

Second, a grease fitting with a water pipe thread is broken off in the rear axle. I have tried using an easy out (no 5). I put a lot of tension on it but could not shift it and am afraid of breaking the easy out. I also tried a cold chisle and punch to try to loosten it, again without sucess. I thought of using the easy out with an air impact wrench set at low touque. Again,does anyone have any tips on how I should do the job?

Thanks

Bob

You may have to drill and retap the grease zerk. 1/8-27 NPT thread calls for a letter R drill, but 11/32 will work just fine. If depth of hole is such you can't get a pipe tap deep enough, you can take an old tap and grind off the end until you have the right tapped depth for your zerk