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8N electrical
:

wiring problem

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Matt in MO

10-18-2000 06:41:09




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Just recently re-wired my 1952 Ford 8N. Re-installed the 6 volt battery last night. Connected the negative cable to the new starter solenoid - no problem. Connected the positive cable to the ground - got lots of sparks. Left the battery un-connected at the ground until I can determine if there is a problem.

Question - is my wiring correct? The wiring at the terminal block is as follows:
Upper post of terminal block-
1) wire from starter solenoid
2) wire from BATT term on VR
3) wire from key switch

Lower post of terminal block-
1) wire from anmeter (neg post)
2) wire from light switch
3) wire from key switch

I believe that the wiring connections at the generator and VR are correct. However, is the wiring to the terminal block correct? Are the correct wires going to the anmeter (wire from wiring harness to POS post, wire from term block to NEG post)? Could an incorrect wiring problem cause the sparks when I tried to ground the battery?

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Gary D

10-18-2000 17:53:34




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 Re: 8N electrical - wiring problem in reply to Matt in MO, 10-18-2000 06:41:09  
Maybe this would help:

Link

Gary



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Claus

10-18-2000 07:16:03




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 Re: 8N electrical - wiring problem in reply to Matt in MO, 10-18-2000 06:41:09  
third party image

Sounds like you got it all mucked up....
Upper terminal block:
1. Wire from key switch.
2. Wire to coil
Lower terminal block:
1. Other wire from key switch.
2. Wire to bat terminal of voltage regulator.
3. Wire to ammeter.
Other side of ammeter:
Bat terminal of starter relay..
Happy Motoring
Claus

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Matt in MO

10-18-2000 07:58:13




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 Re: Re: 8N electrical - wiring problem in reply to Claus, 10-18-2000 07:16:03  
What about the wires from the light switch? Do they attach to any of the term blocks? If so, which ones?



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Claus

10-18-2000 08:25:05




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 Re: Re: Re: 8N electrical - wiring problem in reply to Matt in MO, 10-18-2000 07:58:13  
third party image

On this point, I digress from most published diagrams. The reason is that most diagrams like to connect the lights to the switched side of the ignition switch. This sounds good because when the key is off the lights cannot be turned on..The reason that I do not like this arrangement, is that the meek little switches are not made to handle the heavy light current and can cause problems. When I first got my tractor, I measured the ohmic resistance of the switch and it measured about 1 ohm.. I only got 2.5 volts at my coil. The tractor still ran though...I replaced the switch and that cured that problem... I would wire the lights to the ammeter. (starter relay side) You will not find any automobile lights hooked up to the igntion switch for this reason. If you want to have lights that only go on when the key is on, then get a 20 amp relay with a six volt coil and wire it to the ignition switch.. Why do you think that automobile lights are not wired to the ignition swich?
Happy Motoring
Claus

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Claus

10-18-2000 08:32:02




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 Re: Re: Re: Re: 8N electrical - wiring problem in reply to Claus, 10-18-2000 08:25:05  
Actually, I meant to say the other side of the ammeter...so one can see the current draw of the lights.. I also see a little redundancy there. I should really proofread a little better...
Happy motoring
Claus



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Dell (WA)

10-18-2000 08:16:16




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 Re: Re: Re: 8N electrical - wiring problem in reply to Matt in MO, 10-18-2000 07:58:13  
Matt..... ..connect your light switch to the battery terminal (the one with the most wires).

I do not recommend you connect to the ignition switched output terminal (the one that goes to the ignition coil). The ignition switch is not built to handle the additional electrical load. ..... ...Dell



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Billy in Tx

10-18-2000 09:31:14




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 Re: Re: Re: Re: 8N electrical - wiring problem in reply to Dell (WA), 10-18-2000 08:16:16  
You've got me confused now. When you say the "battery terminal, the one with the most wires", are you talking about the starter selenoid?



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Matt in MO

10-18-2000 10:55:50




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 Re: Re: Re: Re: Re: 8N electrical - wiring problem in reply to Billy in Tx, 10-18-2000 09:31:14  
No - I beleive that Dell is referring to the terminal on the junction block that has the most wires connected to it.



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Billy in Tx

10-18-2000 07:02:50




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 Re: 8N electrical - wiring problem in reply to Matt in MO, 10-18-2000 06:41:09  
The wiring to the terminal block doesn't sound right. I just finished (last nite) the rewring of my 52 and I will look at my manual tonite when I get home.



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