You guys never fail me! You’ve offered many very helpful suggestions! Let me respond on a few things and maybe it will narrow the problem…
I had no idea what a normal compression should be. I talked to a neighbor and he also said that 80 is very low, and may be part of the problem -- or another symptom. With compression that low, should I be thinking an overhaul?
Adjust valves: I had a cracked head (the tractor, not me) some years ago and bought a used head from a neighbor. I did not check it, did not do values – but I did check valve adjustment when I installed it. I realize now I should have done the values and had the head checked. I did buy a new intake manifold, but as I think about it, it has not run as good as it should since I replaced that head. A big mistake on my part…
Worn distributor: A couple of years ago, I bought a new distributor with electronic ignition. Are there other parts that could be worn that drive it? Or, should a new one solve the worn distributor theory?
Plug wires: Easy fix and something I can do. Cracked head/antifreeze. Tractor has not been run for a couple of days, I will try this test. Manifold leak: I will try the (propane) gas test, another easy test. And YES! It seems I can make it run better with the choke.
Low compression/engine cleaner: This one I don’t understand, what would I use and how would that help? I bought this tractor in the 80’s and it’s never been overhauled since I’ve had it, perhaps it’s due?
Plug gap: Another easy thing to try, I’ll give that one a try along with the other tests.
Again, thank you all for your helpful suggestions! I will report back on what I learn. If my responses and added information will help solve the problem, please let me know.
If I had to buy a head, what should I expect to pay? How about overhaul, any ballpark numbers?
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Today's Featured Article - Uncle Cecil's Super A Lives Again - by Mike Purcell. A week or so out of most of my childhood summers was often spent with my Uncle Cecil and Aunt Sissie in the small East Texas town of Maydelle on their 80 acre farm. Some of my fondest memories of these visits are those of learning to drive a tractor at the helm of Uncle Cecil’s 1948 Farmall Super A. Uncle Cecil was the second owner of this wonderful little tractor, but it was almost as though he had adopted an infant. The original owner was a man from Minnesota who bought her from a local dea
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