[AJD] Another Plea For Education

Dean VP deanvp at att.net
Tue Nov 30 17:21:15 PST 2004


Just to add some confusion on the early numbered JD tractors the external
resistor is 2.6 ohms. 

Dean A. Van Peursem
Snohomish, WA 98290

I'm a walking storeroom of facts..... I've just lost the key to the
storeroom door 


www.deerelegacy.com

http://members.cox.net/classicweb/email.htm



-----Original Message-----
From: antique-johndeere-bounces at lists.antique-tractor.com
[mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf Of
hwooden
Sent: Tuesday, November 30, 2004 4:58 PM
To: Antique John Deere mailing list
Subject: Re: [AJD] Another Plea For Education

If the coil uses an external resistor,  the primary resistance should be 
1.5 Ohms +or- .25 Ohms.
If it has internal resistance,  the primary resistance will be 3-4 
Ohms.  HTH  If the circuit has too much resistance,  the spark will be 
weak.  If the resistance is to little,  the points will burn very quickly.
hwooden

wb5cys wrote:

>Man, am I learning a lot about engines from this list.
>
>Here's my next question.  What would be the symptoms of a coil with
incorrect resistance value?  This is regards a 12 volt conversion.
>
>Thanks.
>
>Cal Barton
>Nacogdoches, Texas
>_______________________________________________
>Antique-johndeere mailing list
>http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>
>  
>
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