Posted by RBnSC on December 25, 2012 at 05:52:21 from (76.73.221.117):
I thought I would tell this as I wait for all To wake. A couple of years ago I found an 850 ford in Georgia on CL. No motor,5 speed,good tires and sheet metal. I called and asked the people if they would hold the tractor till the weekend I would pay the asking price. Wife was going to be gone so My son and I made a road trip to get it. The original engine had cracked head and block and PO left it at machine shop. WE had a 640 that we saved from scrap yard and I had had the engine cranked for a minute or so and put that engine in the 850. While going through the parts that came with the tractor they were badly worn even the Spark plugs had double foulers. Got the engine running with the carb manifold and exhaust off the bad engine.It smoked like a freight train. Took it back out and got a 4000 engine from a good friend. Cranked it up and it smoked like just like the other engine and knocked when I revved it up. Called My friend and expressed My disappointment and he promised me that he took it out of a running tractor and it had run fine. Still ticked I drove it out of the garage to take pictures of it smoking to send to him. I noticed that the more it ran the less it smoked, By the time I took the picture it had almost quit. Still knocking when revved but not at idle so I checked the timing and it apparently got bumped up in transit. Set the timing and by that time no smoke at all and purrs like a kitten. Then got on the phone and apologized profusely. What happened was the exhaust was so full of oil that whenever it got hot it smoked till it all burned out.Live and learn. Ron
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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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