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Re: Pros and cons of JD 2440 2640

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02-09-2013 13:21:10

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I prefer the 2440 over the 2640.The 2640 seems to lack cooling capicty.If you work them hard they will run hot.In our area the 2440 and 2640 were very populer loader tractors and almost all 2640 owners complained of them running hot when worked.The 2640 has a hyd oil cooler that takes up part of the radiater space so you have a larger engine with less radiater.The 2440 has a full size radiater so there is more cooling area.Both were very good tractors.

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Tx Jim

02-09-2013 14:22:39

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 Re: Pros and cons of JD 2440 2640 in reply to tomstractorsandtoys1, 02-09-2013 13:21:10  

tomstractorsandtoys1 said: (quoted from post at 16:21:10 02/09/13) The 2440 has a full size radiater so there is more cooling area.Both were very good tractors.

According to JD parts & my memory both the early & late model 2440's had an oil cooler. AR69398 oil cooler .The early 2640 shared the same radiator(AR65715) as the 2440. It's been many years but I don't remember the 2640 having any more heating problems than the rest of the utility tractors in hot Texas.

This post was edited by Tx Jim at 14:27:32 02/09/13 3 times.

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02-09-2013 17:53:42

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 Re: Pros and cons of JD 2440 2640 in reply to Tx Jim, 02-09-2013 14:22:39  
Sorry I was wrong about the radiater size but the 2640's did have cooling issues unless you were very good with cooling system maintance.

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Catskill Pete

02-09-2013 16:03:20

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 Re: Pros and cons of JD 2440 2640 in reply to Tx Jim, 02-09-2013 14:22:39  
Yes at least some of the 2640.s have a heating issue. It doesn"t show up until you have run.[worked] it for 3 or 4 hours on a warm day. But you will see the temp gradually increase to the red range. I always blamed it on too big an engine for that 2/3,s radiator set up. I don"t think it would be an issue if it had a full sized radiator. It never gets hot enough to cause problems, but it still makes me nervous. Thats the situation on my own 2640 and a friends. You can reduce the issue by keeping the radiator fins cleaned out, its much more sensitive to that situation than your average tractor. And if you are wondering the engine has been resleeved, the water pump was new and the radiator core cleaned, its seems to be a design issue not a condition one.

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02-09-2013 17:50:51

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 Re: Pros and cons of JD 2440 2640 in reply to Catskill Pete, 02-09-2013 16:03:20  
Around us the dairy farmers would use them for loaders and then put them on the silage blowers so they got a hard workout in hot weather.With silage there are lots of fine dust blowing around and with the loader somewhat restricing airfow a 2640 would get hot fast.Between Dad and me we owned atleast a dozen of each and I always liked the 2440 a little better.For a chore or haying tractor you probaly would have very little problem.

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