got the new clutch disk in, the blade sharpened and now started greasing the fittings in the deck, wheels.. Whats odd is that even after I clan the zerk fittings and even push in the spring loaded ball to be sure the fitting are not frozen, when I grease em , all the grease comes out around the zerk and nothing seems to be going in .. hmmm. Are there such things are metric vs standard tips on the grease guns or something? It seems to snap on nice and tight..