[Sunnybrook Farm]

I have rebuilt several original valves, they aren't hard to rebuild once you pry off the washer from the shaft that sits on the packing. I used graphite rope to repack them with. The only one that I couldn't rebuild was a repop one from the 70s, the casting of the cone shape piece was so bad that there was still sand casting areas where the part was turned down on a lathe. They had to know it was poorly made when they assembled it but put it together anyway and it always leaked. The originals were still in good shape and can be lapped with a little tooth paste to make a perfect mating of the critical parts.