Re: OK it boils down to two tractors

Posted by Gerald J. on January 11, 2007 at 20:37:03 from (67.0.102.81):

In Reply to: Re: OK it boils down to two tractors posted by Raleigh on January 11, 2007 at 17:29:48:

Well to start the hydraulics are different. The side console 4020 has the remotes and remote valves down on the back of the transmission, the same design was used for decades after 1969, if not still.

The side console engines don't have a crankcase ventilation pump.

There's the side console.

The side console tractor has a deeper dish to the steeering wheel.

The side console, as you know, has an oval muffler for a bit better forward vision.

Most early 4020 diesels were built 24 volts unless shipped with an airconditioned cab. Then they were shipped 12 volts. I've seen it said all side console diesels were 12 volt. I don't know that is true or false. Converting from 24 to 12 isn't hard, Deere sells a kit for the task, about $600 the last time I saw it advertised. The big expense would be the Nippondenso starter as I see it.

In Iowa a side console 4020 starts out at least $4000 higher than an earlier tractor. And there are those lusting after the last year who will pay as much as a working 4230 with a good cab goes for, up about $14.5K.

There are enough differences that all the shop manuals and parts books are separate, even the I&T manual treats them separately. Some of the fundamental hydraulic tests good for the early tractor damage the test equipment (and the operator) if tried on the side console tractor.

Somewhere along the line engine sizes were larger in the side console than the early though it may have only been the gas engine that was different.

You can probably find more differences if you compare the owner's, shop, parts, and I&T manuals. While you are looking you should own at least one of these. The I&T is the most general and least informative but the least expensive since there are at least three editions of the owner's manual and two of the parts and shop manuals. And the parts manual may not describe enough about the parts other than Deere part number to identify the differences, though when parts are the same from early to late, the part numbers probably will be identical.

Since I own an early gas tractor, my books are biased to it and I don't have the later books and I'm no authority on diesel injectors or injection pumps, though I do see in some parts catalogs that there are at least a couple different sizes and models of injectors that were used, clearly not interchangeable.

Gerald J.

Replies:

• Factory 12v 4020 diesel? Tx Jim 04:49:24 01/12/07 (2)
  • Re: Factory 12v 4020 diesel? Gerald J. 09:07:40 01/12/07 (1)
    • starting SN for 4020/console Tx Jim 13:51:32 01/12/07 (0)

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