[AJD] Off Topic

[Dean VP]

Rick:

Switch OFF when doing the resistance (ohms) check. Another way to do this
check with the meter in voltage mode is: have the switch on, turn the engine
to where the points are closed and then measure the voltage at the points
side of the coil. Points open 6 volts, points closed 0 volts. If the voltage
reads anything other than zero when the points are closed, the points are
not closing properly, dirty or are corroded. The points short one side of
the coil to ground when they are closed. If the closed point contact
resistance isn't zero then things won't work right or at all. I suspect your
points just need a good cleaning. If you don't have a point file, then use
abrasive cloth between the closed points to burnish the mating contacts. If
they have been setting around for a period of time it may take a little
extra cleaning. When you break open the points manually with the switch "on"
you should see a spark at the point contacts. 

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
rick
Sent: Tuesday, January 18, 2005 7:23 AM
To: Antique John Deere mailing list
Subject: Re: [AJD] Off Topic

Thanks Dean.....should the key be on or off when i check the
ohms?..........Rick
----- Original Message ----- 
From: "Dean VP" <deanvp at att.net>
To: "'Antique John Deere mailing list'"
<antique-johndeere at lists.antique-tractor.com>
Sent: Monday, January 17, 2005 11:15 PM
Subject: RE: [AJD] Off Topic


> Rick:
>
> Check to verify that the points are closing and that when they are closed
> there is "0" ohms across them.
>
> 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
> rick
> Sent: Monday, January 17, 2005 3:13 PM
> To: Antique John Deere mailing list
> Subject: [AJD] Off Topic
>
> Hey guys...im wondering if anyone can help me with some ideas to this
> puzzle.....i've been trying to help a local farmer get a 1931 ford model A
> truck going....it has the original engine and 6 volt system...our problem
is
> we are unable to get any spark out of the coil output....we have power on
> both sides of the coil when we turn the key on(i thought that was kinda
odd
> since one is positive and one is negative)...also we get power at the
> condensor when the key is turned on....when we crank it over we get
nothing
> out of the coil ouput/wire that goes to the distributor...we have replaced
> the coil and get the same thing......anyone have any ideas?
> Rick
>
> >
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