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when compared to the other countr y was pr epar - models. When produced ceased in 1972, it was replaced by the ing t o celebr at e t he 2470 4-wheel drive using a 351 cubic inch engine. The 1370 200t h bir t hday of t he countr y, Case was introduced in the 2-wheel want ed t o show t heir patr io tism in drive lineup using the 1470’s 504 CID engine. t heir own way. In Januar y of 1976, in For a few years, the 1370 was 2-wheel drive king in the AgriKansas City, MO, Case debut ed t o t heir King line but lost its title when ag dealer ne twor k a new, lar ge model the 1570 was introduced. This known as t he 1570. It was t o become tractor also used the 504 CID 6-cylinder turbocharged engine t he big br o t her t o t he successful 1370 used in the 1370. The rated engine speed for the 1370 at t hat had been intr oduced in 1972. that time was 2200 RPMs. The 1570 used a different fuel system The make a splash with this recorded definite number. and was rated for 2100 RPMs new model, a special decaled The 1570 was an addition but put out more power than 1570 model was shown in a to the Case 70 series which the large 2470 4-wheel drive. unique red, white and blue was introduced in the fall of The 1570 used a selfscheme. Two of these models 1969. The two-wheel drive cleaning air induction system. were offered to each dealer if models consisted of the 970, Intake air was forced into the they wanted it but they had to 1070, 1170 and 1270. When be ordered between January and the 1470 was introduced, it was stratotube where cycloneJuly. There appear to have been the largest tractor Case had ever action whirled the dirt particles approximately 200 of the Spirit built. However, it was a 4-wheel outward using centrifugal force. Using this method 95% of tractors built but there is no drive and quite cumbersome 26 JULY/AUGUST 2009 ISSUE 004
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the dust and dirt from the air taken in was removed before it reached the dry-type filters. The dirt was then exhausted through the muffler. The turbocharger was mounted in the center of the engine to evenly force air into all six cylinders. The intake and exhaust manifolds were located on opposite sides so the intake air could remain cooler and more dense. Combustion was more thorough and the exhaust air was cleaner because the two didn’t mix. The result was better fuel economy because of the higher air-to-fuel ratio. For maximum cleaning, the engine oil passed through two filters and an oil cooler. Cool, clean oil helped lubricate the high-speed turbo bearings. Oil was also used to cool the pistons and cylinder walls by a forced, constant-pressure oil spray system.