[AT] Grease fitting threads

[Francis Robinson]

	Try putting a new fitting in the hole then "upset" a ring all of the way around it with a sharp center punch. 
On a 1/8th NPT fitting you would want at least 10 "dots" around the perimeter of it. The upsetting will tighten the 
hole around the fitting and form the hole material into the fitting threads. Be sure you don't run the fitting in too 
deep to keep it from hitting bottom again.
	This is the same procedure often used to lock valve seat inserts into a block.



"farmer"


Francis Robinson
Central Indiana USA
robinson at svs.net