Rod, Major HP increase, without pump work. All we did was open the fuel screw about a 1/2 turn, and advance the timing about 2 degrees, they still had to start good in cold weather. 970 would dyno at 140 to 145 PTO HP at these settings.The 1070 at 155-165, and one at 180HPwith a little extra coaxing. We built these tractors up to last in the field, and didn't max them out. They actually ran cooler turboed than they did naturally aspirated, and we always told our customers to pull the same implements they had, just easier and more consistant on our steep terrain. and NOT to weight the tractors down to pull bigger implements. They had to get some wheel slip for the trannies to last. As for the 7 and 870s, we ordered parts from Case also, as there were 336Ts used in industrial equipment. We were not an industrial dealer, but could order parts. We also repowered two 770 Gas tractors with 336T industrial skid engines that we aquired through Bassett Equipment in Sand Hill, Nebraska. They were the small journal engines and would run 110HP out of the crate. The 770s would make 90-95Hp with nothing more than tweeking the pump. We did install factory oil coolers on all of them, like the standard oil cooler that mtd between the filter and the filter manifold, on the last of the 870s, Loren
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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