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Antique Farm Tractors Vintage farm tractors on rubber tires with various implements. Ford, John Deere, Oliver, McCormick and more.

Antique Farm Tractors

John Deere 620 Starter Problem

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Old 02-17-2011, 09:11:38 PM
patrickingalls patrickingalls is offline
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Default John Deere 620 Starter Problem

I have a 620 JD Tractor, serial # 6214938 manufactured in 1957.
JD lists one ring gear, two bendix and two starters.
A couple of years ago the ring gear was replaced and last month the bendix was replaced with the one that JD lists for the tractors serial number.
When the starter was installed the bendix to ring gear tooth contact was minimal so the other bendix was obtained but the bendix gear size will not fit in the ring gear. The tractor currently has a Delco starter but without a name tag.
It appears that a previous owner changed the starter as the nose piece has been ground to fit.
Does anyone have any information on the correct starter and how you tell the difference?
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Old 02-18-2011, 07:19:06 AM
Jim Gordon Jim Gordon is offline
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Default Re: John Deere 620 Starter Problem

JD parts book shows it takes a Delco Remy #1113041 starter motor.Hope this helps.
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Old 02-18-2011, 07:27:28 PM
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Mark Birdeau Mark Birdeau is offline
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Default Re: John Deere 620 Starter Problem

If you still have the drive that was replaced a month ago it may have a part number on it. Without a tag it would be hard to identify a starter by looking at it unless it was real unusual. Your only choices may be to get the correct starter or find a parts guy that's willing to look at a bunch of drives to find one that is slightly bigger in diameter with the right tooth spacing.

If the starter was changed it's unlikely that the drives that JD list would be right.

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Old 02-19-2011, 04:14:03 PM
mmcdonald mmcdonald is offline
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Default Re: John Deere 620 Starter Problem

Mark's on the right track. If it's not the original type starter, and it has no number, then basically the only thing anyone can do from afar is to match dimensions on a bendix drive that did work correctly. One other thing you might want to check(since you mentioned drive was not fully engaging) is the possibility that the ring gear is not placed correctly. Maybe it is, but if the ring gear is not on far enough it would cause short meshing of the gears. Per reference books, a lot of 620's used a drive with these dimensions. 11 tooth, 1.331 gear OD, 0.563 shaft ID, and 3.779 length. Delco number was 1932897. Good luck.
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