>From: kristian@cs.uchicago.edu
>Subject: Ballast resistors and coils
>....
> The question is: Does anyone know a simple way to tell when
>the wire is set-up properly? In its present state I see 12v between
>the + coil terminal and chasis ground when the engine is "on" and not
>running. Should I be seeing 6v under these circumstances?
The wire in question is indeed an inline chunk of restistor wire feeding
the primary side of the coil. It's only failure mode is to burn completely
through, hence no power. With an electronic ignition, key on, engine not
running, you should see aproximately battery voltage at the coil + terminal.
With the engine running, this should dip down to around 10v. I believe you
said that the coil primary resistance was 2.2 ohms. You'll probably see
12v then. Don't sweat it, unless it's under about 8v.
...
>be accomplished during start-up? Does anyone know the principle behind
>using a "wire" as a resistor, rather than a separate resistor?
No. Just following a slightly different drummer.
Time to introduce myself to you and the list. My name is Randy Wilson,
amd I broadcast these messages out to the real world from a small apartment
in Norfolk, Va. It appears that I'm backwards from most of the folks here.
Computing for me is purely a hobby. I make my living fixing British and
Italian cars. That's right, MG's and Fiat's 8 to 5, the leading cause of
early brain failure.
I've only been on this echo for about a week, and apperently missed the
beginning episodes of this. Could you give me a recap?
Randy K Wilson
randy@taylor(.uucp)
...!uunet!chrysanthemum!taylor!randy
.
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