Posted by Dick L on October 10, 2020 at 04:41:31 from (50.51.88.248):
1988, 1989, and 1990 I bought new 3 400 ton as well as two 220 Japanese molding machines. They are considered obsolete and parts are not stocked in the US anymore. From fatigue a 1 /14" pipe elbow to ferrell hydraulic pipe with a fine threaded nut. Bought fittings and high pressure pressure hose. Could not thread the 1 inch Japanese pipe as it is larger on the outside. Bought more fittings and threaded thick wall 1 inch pipe to match threads. 1 1/4' pipe fittings screwed in tight with a 4 foot pipe wrench still leak. Find the taper on Japanese threads has more taper and regardless how tight it is only on about three threads. No problem I"ll just re tap the threads with my 1 1/2" pipe tap. I have used my tap to tap out many Allis Chalmers B, C and CA exhaust manifolds. I always put that tap back every time in a tap drawer at home. (RIGHT) After a day of looking I found a new on in Auburn IN. 95 bucks later and another day gone by. Packed the tap with grease and it all is leak free after running the tap in to where it has all new threads on the proper taper. So the message is Japanese pipe fittings are the same thread with a steeper taper. I now again have a set to pipe taps from 1/8" to 2" in the same place. Two 1 1/2" and two 1" in the drawer. I might even find my lost 1 1/4" tap if I live long enough.
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Today's Featured Article - On the Road with Dave Gohl: Deere Departed Friend - by Dave Gohl. Have you ever had to part with a dear friend? It's not easy. If it's due to death, your feelings could be in disarray for days, months or even years. Even now after almost 4 years, I still miss my dad. I remember when I was a kid my dad sometimes would tuck my brother and I in at night and we would ask him questions about his childhood on the farm. To this day, it's some of the best stories I've ever heard. And now, I'm so glad that I asked those questions, and if I were a little smarter i
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