Posted by CAS on May 19, 2014 at 12:00:51 from (67.240.133.144):
In Reply to: John Deere 4240 posted by CJF1981 on May 19, 2014 at 09:38:32:
I have worked on 4240s and 4440s with over 10000 hours. the 4240 needed a clutch and head gasket(it got overheated to cooling system leak. The 4440 had a pin hole in one sleeve do to elcctrolysis I think. Put new injectors in both. Bought the cheap injectors online. The 4440 bearings measured to new tolerances(changed anyway with clevite brand bearings). Both these engines has been turned up 30 horsepower since new. This was three years ago and the tractors are running everyday on a dairy farm. They have stood the test of time. Owner has no plans on getting rid of them. One thing on the 4440 if one sleeve has a pin hole change them all. The owner used john deere engine oil since new. Also both have quad ranges that have never been touched. Operators of the tractors were mediocre at best. I ran both and like the 4440 the best. They are little heavy on fuel use, but they are worked hard. One last thing when we had the 4440 I miked the clutch and seperator plate there was virtually now wear. The only bad thing is the cabs have significant rusting. But, this is in Western New York where each town and the state race to see who can put the most salt on the road in the winter. Cab parts can be bought in segments in pieced in as needed for replacement.
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