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John Deere Tractors Discussion Forum
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4030 Antifreeze in oil

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b. Jones

12-06-2005 09:14:13




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As soon as it warms up a bit I am going to look at a 4030 with quad range. It has been sitting for around 3 years . I guess the owner drove it in the shed but says he thinks it has antifreeze in the oil. Do you think it would need another motor or could that one be fixed?? Other than the motor it is supposed to be in pretty good shape. thanks. B. Jones




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B. Jones

12-08-2005 07:51:19




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 Re: 4030 Antifreeze in oil in reply to b. Jones, 12-06-2005 09:14:13  
Thanks Mike for the additional information. I'll sure check into it.



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Mike Becker

12-08-2005 05:52:29




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 Re: 4030 Antifreeze in oil in reply to b. Jones, 12-06-2005 09:14:13  
We owned one of the first 4030D that came out in 1974. Check yours to see if they still have the coolant lines running to a block under the oil filter. We had a leaking o-ring in that area that could put water into the oil. If I remember right we eliminated that block and plugged the coolant lines. Unscrew the oil filter, remove an adaptor, remove the block and reinstall the oil filter, thread is the same. Block or hose loop the coolant lines.

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B. Jones

12-06-2005 17:58:10




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 Re: 4030 Antifreeze in oil in reply to b. Jones, 12-06-2005 09:14:13  
Many thanks for your replies. What you guys have told me is kinda what I was thinking but it is good to hear it from someone with experience. In northern Missouri tonight it is going to be close to 0. In a couple of days or so I want to go look at it and see what it really looks like. I know it doesn't have a cab. Again many thanks.



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buickanddeere

12-06-2005 15:59:28




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 Re: 4030 Antifreeze in oil in reply to b. Jones, 12-06-2005 09:14:13  
As the other guys stated, she's worth it if the price is right. Just count on replacing the sleeves, cam, followers, pistons, every bearing and turning the crank. The current owner let the coolant get old and acidic which allowed holes to cavitate through the sleeves. If the block is wrecked or on a budget.Six cylinder 300 series Deere engines in good condition are cheap on the used market. Found in construction equipment,Dubuque and Mannheim built equipment. Even in some combines where engines go cheap.

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G/MAN

12-06-2005 10:24:04




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 Re: 4030 Antifreeze in oil in reply to b. Jones, 12-06-2005 09:14:13  
Josh is correct on all counts. The 4030 is a good tractor, and if it has coolant in the oil, you're probably looking at bad liner seals, a blown head-gaskets or a cracked/pitted-through liner, head or block. Liner seals or a head-gasket would be the most likely causes on the list. Give the oil a good look. If it has a milky appearance, it probably has coolant or water in it. Or you could pull a sample and have it checked. To determine where the leak is, you can drop the oil pan and pressurize the cooling system. You should see coolant running out somewhere - either down the inside of a liner, around a liner, etc. That 6329 engine is a good unit, as all of the Deere 300-series diesels are, and shouldn't break the bank to overhaul and repair. 4030s are rated at around 80 horsepower.

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Josh H

12-06-2005 09:42:18




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 Re: 4030 Antifreeze in oil in reply to b. Jones, 12-06-2005 09:14:13  
I'm no expert on the 4030 but have driven one with the quad range a few times. I think it was the nicest tractor I've ever used. I think that they had some problems with erosion of the cylinder sleeves when the antifreeze wasn't changed. It could be that the sleeve has a hole in it and leaks antifreeze into the oil pan. It could also be a number of other things, including cracked block or head, or bad head gasket. If the price was right, I think i would buy it, but the price should be pretty low since it will likely need major engine work.
Josh

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