If the ballast resistor is burnt out, the motor will die when the ignition
switch is returned to the 'on' position. This is because the ignition
switch, when in the start position, bypasses the ballast resistor (white
ceramic block next to the ignition coil) to supply full voltage to the
ignition coil for a hotter spark. When the switch is returned to the on
position, power now runs throught the ballast resistor. If it's burnt out,
no power to the coil, so that's why the motor dies. I'll bet that's your
problem.
Regards, Mark Ward
----- Original Message -----
From: "Matthew Pegg" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, May 25, 2000 12:16 PM
Subject: Problems with ignition on a 1978 Datsun Skyline.
>
> Hi all,
>
> First off, apologies if I'm asking this in the wrong place. But I'm
desperate
> and I figured the wiring etc. might be simliar to the 240 Z...
>
> The Car: Orignal straight 6 1978 Datsun/Nissan Skyline.
>
> The problem:
>
> I turn the ignition switch around to the starter motor, and the starter
> motor starts up and the engine fires first go. I then release the switch,
> back to the ingition position, and the engine cuts out. If I do it again,
> but this time hold the switch and slowly move it back to the ignition
> position, I get to a point where the starter motor cuts out and the car is
> running without a problem. If I keep moving the switch back, the engine
> cuts out just before it clicks into the ignition position. I do have the
> ingition lights on the dash however.
>
> My first assumption was that a contact within the ignition switch had
> deteriorated, but the switch has since been replaced with a new one
> (sourced from Nissan) and the problem is still occuring.
>
> Anyone have any thoughts on what might be causing this, or where to
> start looking??
>
> regards,
> Matt.
>
>
>
>
> --
> 'sapientia potestas est'
> ____________________________________
> Matthew Pegg
> Ballarat, Australia
> ____________________________________
>
>
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