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Mount Vernon, WA | You might wish to do your homework a little more carefully. I just came from the JD Parts website, and immediately found two critical differences. 81/8200s used different viscous fan drive clutches than did the 83/8400s. In addition, the gearboxes (specifically, the gearing and driveshafts) that drive said viscous fan clutches are different between all 4 of them. Could it be that each one is driven at a different speed, dependent on horsepower setting? I THINK SO!
I don't have hours and hours to devote to the JD Parts website to list all of the differences between an 8100 and 8400, but I gotta think the reason a 8400 MFWD tractor weighs almost 1000 pounds more than a 8100 MFWD tractor is not just because of a difference between fan drives and rear axles.
I really don't recall ever saying that turning up an 8100 10% would cause a failure. If you can prove me wrong by directing me to a previous post I made on the subject, I will gladly eat crow. However, as I said in my last post, turning up an 8400 WILL eventually cause problems. Just ask Dutch what he thinks of those engines at FACTORY levels! | |
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Want to turn up a CIH 7230
