Posted by Roger46 on August 24, 2010 at 17:46:35 from (72.100.13.139):
Last winter I completely rebuilt my Farmall A engine including new sleeves, pistons, rings, bearings, reground crank, new valves/springs/guides, hot tanked block, and new clutch. Basicly, it is a new engine. I have a Woods 60" belly mower on this tractor and have been cutting grass all summer on a weekly basis as we have had a lot of rain this year. It takes about 1 1/2 hours to cut the grass and with all the rain, the load on the tractor is substantal and variable. I installed step pistons from Tisco, so I have much more power than I used to have. The problem I am having is that the tractor smokes every time I start it (hot or cold) and it smokes when it is idling. It doesn't smoke under load (unless it is burning it better). It seems like a valve guide problem, but I put in new valves and guides. It has used about 2 quarts of oil this summer. I also thought maybe the rings haven't seated, but I don't know why or what to do about that. This is not like my first engine overhaul as I have done many other tractors without this problem. Can anyone make any recommendations? One additional piece of info is that this tractor did similarly before the overhaul, so is there something wrong in the head that didn't get corrected at the machine shop I took it to? Roger
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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