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Restoration & Repair Tips Board

Re: New Ignition key issues

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Author  [Modern View]

10-07-2013 10:36:48

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Are you diagnosing this "bleed to ground" with a voltmeter, ohmmeter, or amp-meter? The amp scale is the best way if it's really going to cause any problems. If it's less then 30 milliamps, it's not going to be a problem.

If the tractor won't shut off , then obviously the coil is still getting power. That's a common problem when Delco 10SI, 12SI or 18SI alternators are wired into the system. Still have a brushed generator with a mechanical regulator or a solid-state alternator with a built in regulator?

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John Rockwell

10-07-2013 12:47:15

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 Re: New Ignition key issues in reply to jdemaris, 10-07-2013 10:36:48  
I will look at this alternator issue tonight, Thanks for the feedback!

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John Rockwell

10-07-2013 17:56:50

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 Re: New Ignition key issues in reply to John Rockwell, 10-07-2013 12:47:15  
Well yes this thing is wired wrong.

Background: This is a 12v positive ground with a generator.

Instructions on the net with picture of new switch said:
B - Power from battery off of starter post
S - to starter solenoid
I - to coil
F - to "Gen" post on voltage regulator

But I got this from an old wiring diagram:
S - starter solenoid
F - no wire
B - to L post on voltage generator
I - to coil

I tried the first array and it won"t shut off, so should I just try the second array?

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10-08-2013 13:43:35

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 Re: New Ignition key issues in reply to John Rockwell, 10-07-2013 17:56:50  
The 2nd version of wiring is correct. But it has nothing to do with your 1010 turning off or not. The "B" terminal on the ignition switch needs 12 volt negative power and it doesn't really matter if it comes direct from the battery or from the "L" post on the voltage regulator. The important thing here is the "I" terminal on the ignition switch. It sends power to the coil and there should be absolutely nothing else hooked to it. You've either got something wrong with your ignition switch or there something hooked to the coil-power wire that should not be.

By the way, the "F" terminal on the ignition switch is not used (at least not on any 1010 diagram I've seen). The "GEN" post on the voltage regulator is wired to the armature post on the generator and to the charge "idiot" light.

S - starter solenoid
F - no wire
B - to L post on voltage generator
I - to coil

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John Rockwell

10-09-2013 10:33:36

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 Re: New Ignition key issues in reply to jdemaris, 10-08-2013 13:43:35  
Thanks to both of you for your help. The 1010 starts and stops!!

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John T

10-08-2013 06:46:09

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 Re: New Ignition key issues in reply to John Rockwell, 10-07-2013 17:56:50  
Cool, since its a Genny, disregard the comments about a Delco Alternator, and concentrate of the switch wiring or other ignition issues. Its a simple volt and ohm meter trace out project

John T

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