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lenray 11-20-2009 09:17:39 67.209.243.130 343925 Report to Moderator	How can I tell if I have one or not???? [Reply]   [No Email]
Gerald J. 11-20-2009 10:46:52 70.219.253.21 343938 Report to Moderator	Re: Ballast Resistor OR NOT ON 4010 in reply to lenray, 11-20-2009 09:17:39   I think you will find an extra terminal on the starter solenoid and a wire from that to the ignition coil primary terminal. That puts full battery voltage on the coil shorting out the resistor for starting. I know my early 4020 gas is that way. The resistor in the switch went bad and was replaced by a ceramic ballast resistor mounted next to the coil before I got the tractor. Gerald J.   [Reply]   [No Email]
jdemaris 11-20-2009 10:56:21 67.142.130.16 343942 Report to Moderator	Re: Ballast Resistor OR NOT ON 4010 in reply to Gerald J., 11-20-2009 10:46:52   Yes, Deere offered upgrade kits for all the "10" series. But for many, the kit came with a new porcelain external resistor, new small wire harness, and the bypass was still built into the switch. That because some of the "10" series had Presolite starters with no provision at the solenoid for bypass. Especially with the 1010 and 2010s. 4010s may of been Delco only (I don't recall) that always does the the "R" for bypass on the solenoid.   [Reply]   [Send Email]
jdemaris 11-20-2009 10:27:24 67.142.130.16 343935 Report to Moderator	In the switch in reply to lenray, 11-20-2009 09:17:39   4010 uses a wire-wound ignition resistor built into the igntion switch. It runs between terminals I and F.   [Reply]   [Send Email]
John T 11-20-2009 10:02:04 66.244.97.31 343932 Report to Moderator	Re: Ballast Resistor OR NOT ON 4010 in reply to lenray, 11-20-2009 09:17:39   IFFFFF it has one and its wired right and good, if you turn the ignition on and put a voltmeter on the coils input (NOT to distributor) terminal and the points are closed and it and all else is good and correct,,,,,,you would get a reading in the 6 to 7 volt range VERSUS 12 volts if theres no external series ballast. IE the ballast is there and drawing current and dropping the 12 battery volts down to 6 for a 6 volt coil ON a 12 volt tractor you can EITHER use a full true (some call internally ballasted) 12 volt coil OR ELSE a 6 volt coil plus the series voltage dropping (12 to 6) external ballast after the switch before and ahead of the coil. One advantage of the 12 volt tractor and 6 volt coil if it has the start ballast by pass system, is you can by pass the ballast during cranking for a good starting spark. John T   [Reply]   [No Email]
jdemaris 11-20-2009 10:33:40 67.142.130.16 343936 Report to Moderator	Re: Ballast Resistor OR NOT ON 4010 in reply to John T, 11-20-2009 10:02:04   Only slight exception is those systems that use a current and heat sensitive ignition resistor (often in Ford systems). Gives near full voltage at first and as it heats up voltage drops pretty quick. My 1964 Ford 4000 has that system. With points closed, it takes around 30 seconds to drop the voltage down - which can throw off a voltage test if the person is not aware.   [Reply]   [Send Email]
John T 11-20-2009 14:18:16 66.244.97.31 343952 Report to Moderator	Re: Ballast Resistor OR NOT ON 4010 in reply to jdemaris, 11-20-2009 10:33:40   Yep as best I recall that was one of Fords "better ideas" Ive never seen one on any Deeres (but my experience is two cylinders), but no reason why a guy couldnt rig one up. John T   [Reply]   [No Email]