Posted by Andy Motteberg on November 09, 2007 at 13:29:38 from (4.143.218.200):
Hi, I posted a while back about my 1943 Farmall H not running right. When you rev up the engine, most of the time it will shut off, but if you quickly push it back down, it runs ok. The tractor has a IHC H4 Magneto. The mag has new points, condenser, cap & rotor, the tractor has new D21 Champion plugs and new NAPA MAX POWER plug wires. The carb is cleaned and new kit put in, new fuel filter, there is gas in the carb and we did adjust it. A few days ago, me and my Dad were going to get some wood from our neighbor's for winter, we use the tractors because we need to drive deep into the woods. I thought maybe my Farmall H would work, but it does not have the power to pull our empty trailer. We got it onto the road and my Dad got it into 5th with the throttle way up and it had a hard time pulling it and it was missing on a cylinder! We drove it back slowly and put the trailer on my Dad's 1954 Super M-TA instead and it worked very well. My H seems like it runs on all four cylinders when it is not pulling anything, but it is missing when we pull. It starts pretty hard and only starts with the throttle all the way down. Yesterday, I let the tractor warm up while it was sitting and I pulled one of the plug wires off one at a time. The tractor ran quite a bit different when each one was pulled off, except one only changed the running a little bit. I held each wire close to the end of the plug to see if they would spark and all the wires are putting out nice blue spark. I was told on here that I should do a compression test, have not done that yet because I cannot find my compression gauge. My Dad told me that one of the valves might be sticking. What do you think I should do? If I cannot get this fixed, I'm going to take the tractor to Gary Jensen Repair and let him fix it. My Dad says it is getting the gas fine, so I don't think it is a carb problem, but I'm not sure.
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