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Cattle Boards
Trucks, Tractors & Machinery
1969 JD 4020 diesel
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<blockquote data-quote="agmantoo" data-source="post: 839357" data-attributes="member: 8973"><p><a href="http://www.apmengineparts.com/john-deere-6404t-6404a-tractor-engine-kit.html" target="_blank">http://www.apmengineparts.com/john-deer ... e-kit.html</a> is where the kit was purchased. The supervisor of the machine shop we used is an old man that has been in the rebuild business his working lifetime, ~ 60 years. He was impressed with the quality of the kit.</p><p></p><p>Just a suggestion.</p><p>On the 4020 cranking. I have only worked on a few of these tractors. From what I have seen J Deere engineers could not make up their minds as to what they wanted to do for the cranking of the 4020 series.If I had a 4020 I would get rid of the slender but long batteries and get two road tractor batteries and mount those batteries elsewhere. I would arrange these 2 batteries in series to create 24 volts for starting and where a 24 voltage late model construction equipment alternator/ regulator would sense both batteries state of charge. ( A 12 volt, two battery setup voltage regulator senses the condition of the best battery) For no more power requirements that a 4020 requires for other needs such as lights just tap the 12 volts off one of the batteries, the one with the chassis ground.</p></blockquote><p></p>
[QUOTE="agmantoo, post: 839357, member: 8973"] [url=http://www.apmengineparts.com/john-deere-6404t-6404a-tractor-engine-kit.html]http://www.apmengineparts.com/john-deer ... e-kit.html[/url] is where the kit was purchased. The supervisor of the machine shop we used is an old man that has been in the rebuild business his working lifetime, ~ 60 years. He was impressed with the quality of the kit. Just a suggestion. On the 4020 cranking. I have only worked on a few of these tractors. From what I have seen J Deere engineers could not make up their minds as to what they wanted to do for the cranking of the 4020 series.If I had a 4020 I would get rid of the slender but long batteries and get two road tractor batteries and mount those batteries elsewhere. I would arrange these 2 batteries in series to create 24 volts for starting and where a 24 voltage late model construction equipment alternator/ regulator would sense both batteries state of charge. ( A 12 volt, two battery setup voltage regulator senses the condition of the best battery) For no more power requirements that a 4020 requires for other needs such as lights just tap the 12 volts off one of the batteries, the one with the chassis ground. [/QUOTE]
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1969 JD 4020 diesel
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