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8n 12 volt conversion diagram ?

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nuguy

03-23-2008 13:02:25




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I just had the solenoid go out, went to auto advance parts, they gave me what looked like the one I had, well now after 10 minutes of running fine the alternator started smoking, any ideas ?...why, anyone have a diagram for how the wiring should be ?...is there a difference internally but not externally with a starter solenoid ?

[img]<a href="http://home-and-garden.webshots.com/photo/2863792270083293448vpTkVS"><img src="http://thumb8.webshots.net/t/63/663/7/92/27/2863792270083293448vpTkVS_th.jpg" alt="wiring"></a>[/img]

[img]<a href="http://home-and-garden.webshots.com/photo/2743414250083293448pkyJxy"><img src="http://thumb8.webshots.net/t/63/663/4/14/25/2743414250083293448pkyJxy_th.jpg" alt="alt"></a>[/img]

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Dunk

03-24-2008 03:46:09




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 Re: 8n 12 volt conversion diagram ? in reply to Tom N MS, 03-23-2008 13:02:25  
third party image

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Dell (WA)

03-23-2008 18:38:52




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 Re: 8n 12 volt conversion diagram ? in reply to nuguy, 03-23-2008 13:02:25  
nuguy..... ...the original 3-terminal 8N's starter solenoid mounts onto of the starter with the itty-bitty middle terminal facing the engine block. The itty-bitty terminal is connect thru the dashpanel to the BIG starter push'em button next to the tranny shifter.

Some well meaning but un-knowledgeable autoparts guys try to sell a 4-terminal starter solenoid to unsuspecting electrically challenged nuguys claimin' "itt'll work" and it generally don't. The BIG starter push'em button "grounds" the starter solenoid as a tranny neutral safety scheme.

I know of 3-different 4-terminal automobile starter solenoids and only 1-WORKS in tractor application. And would you believe the original 6-volt 3-terminal starter solenoid works just fine on 12-volts? But I flunked mind reading (just ask my ex-wife of 32yrs) and I don't know which starter solenoid you have.

You write..... ."now after 10 minutes of running fine the alternator started smoking, any ideas?"..... ..nope, but there should be NO relationship between 3-terminal starter solenoid and 12-volt alternator. But stranger things have happened..... .....HTH, Dell, a 12-volt advocate for the right reason. That said; I know 8-ways convert to 12-volts and they all work, and NONE need or use a 4-terminal starter solenoid

Dunno know why yer pictures didn't show like yer webshots. Try these..... .Dunk???

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JMOR

03-23-2008 17:55:06




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 Re: 8n 12 volt conversion diagram ? in reply to nuguy, 03-23-2008 13:02:25  
Check to be sure the ammeter terminals are not shorted to the ammeter mounting bracket. Only a possibility as I see it, because I would actually expect some burnt wiring insulation if that were the case.

Also, I do not see a diode or idiot light in the blue (excite) wire from ign-acc to alt. Bob regularly points out good reason why this is risky to alternator health.



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