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Re: IH 274 opinion
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Posted by Hugh MacKay on January 31, 2007 at 02:59:26 from (216.208.58.148):
In Reply to: Re: IH 274 opinion posted by E.B. Haymakin' on January 30, 2007 at 22:58:37:
Ed: Very common practice in the past 25 years, companies use the same engine in 3 different hp tractors. I always tried to buy so I was getting the engine with the lowest hp aplication. One of the older example of this was the IH C-113 and C-123 used in small Farmalls. The engine was far more sucessful in the Super A, 100, 130 and 140, than in the Super C, 200, 230 and 240. The bit of extra weight coupled with the 36 inch tires, was just too much for that little engine. Getting back to the diesels, it's been well known for years the efficiency in diesel lie in the fact they developed maximum torque at much lower rpm than gas tractors. Most of them hitting it at 1,500 rpm or lower. It cut down on engine wear, and it also created fuel efficiency. The guys in this thread are calling the 274 fuel efficient with 99 cubic inches turning 2,600 rpm. Had IH developed a 135 cubic inch 4 cylinder turning 1,800 rpm it would have burnt 1/2 as much fuel and we would never have heard tell of premature engine rebuilds. In my opinion the whole farm equipment industry has gone the wrong direction in the past 35 years. They are all going for high rpm and lower cubic inches, to come up with a lighter engine. Unprecedented the number of pre 10,000 hour rebuilds. From a manufacturers point of view this is great, we wear the tractor out in 10 years and are back for another, and only getting 4,000 to 6,000 hours of service from them. The trucking industry has gone the other direction, with most highway tractors turning 1,650 rpm at 65 mph and using big cubic inch. those guys are getting 20,000 to 30,000 hours on engines. We only get what we're willing to buy. If you think about the work being by those big diesels stacked aginst fuel consumption, compared to the smaller farm tractors, the tractors are a disaster. Heck our envoirnment depts shouldn't even allow these small modern engines to use oxygen. But then, the same can be said for the truck when comparing it against the locomotive.
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