Posted by db4600 on April 01, 2020 at 16:56:17 from (207.191.138.183):
In Reply to: Shout out to MJ/ UK posted by db4600 on April 01, 2020 at 16:41:56:
Not knowing much about Nuffields I surfed the web. There is some contradiction in info on this side. For instance was the PM-4 production run from ‘50-‘57 or ‘50-‘60? Second I can find info that tells me the Series had a PM-3 (row crop), PM-4 (standard), and a DM-4(diesel standard) I find info that indicates that the engine engines were of Morris origin in either TVO or Diesel, but then I find reference to a Perkins option that gave the significance to the “P” in PM-4. Can you give some clarity? Also found info stating the second generation Morris diesel was far more efficient then the Perkins. A better picture of the dual exhaust. This is a head scratcher. It appears to be tapped in a lobe that is part of the manifold casting.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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