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JD 8650 vs.8640-8630
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Rockhead
Posted 6/11/2009 07:31 (#740814 - in reply to #740543)
Subject: Re: JD 8650 vs.8640-8630



Chippewa County, MN
Part of the "big deal" about 30 & 40 series engine was due to Deere. I remember when the 50 series came out that they touted it as the greatest thing since sliced bread. They started to acknowledge that the 30 & 40 series had problems, but they were all fixed with the 50 series engines. There was supposedly some improvement in filtering, but due to the fact that the engine was still a stressed member the problems continued.
If those tractors had been any color but green, there would have been a major backlash against the manufacturer simular or worse than IH with the 45/4786.
While touring the tractor works in '83 the tour guide bragged about how up until that time no other engine manufacturer ever made a V-8 that would stand up to ag use. Theirs would. That "idea" didn't last long.
It sounds like they finally got it right with the 9000 series other than a head gasket now and then. A lot of folks seem to like the 8960/8970's also.
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