I was reading Andrew's most recent message when I remembered the electrical
trouble I had
with a '73 or '74 510 I had in college. Same symptoms: no spark and everything
seeming to
check out alright. I was just about to reply that it had turned out to be this
little wire
connecting the points to the distributor, when I read Jerry's message.
On my 510 the wire looked perfect from the outside (it had cloth - probably
fiberglas
cloth - insulation) but was fractured internally - my theory was that it stuck
up in the
way of the rotor and got whipped every time the rotor went around, which meant
that it
took a lot of abuse before it finally let go. When you replace it, make sure
that it is
tucked down out of the way of the rotor - and Happy Motoring!
Gary McCormick
San Jose, CA
---------------------------------
jdg1 wrote:
> Andrew,
>
> On the older Datsuns, including the roadster, there was a special wire that
> ran from the side of the distributor to the points. This wire (orginally
> white) would sometimes break internally even though the outer sheath would
> remain intact. Pulling on the ends of the wire will not give a true picture
> if it is broken since you may be pulling on the sheath. Testing the wire
> with an Ohm meter may also be inaccurate as the wire may make contact in
> certain positions -- usually the same position as you are holding it to
> test. You may want to check this wire and replace it if possible.
>
> good luck,
>
> jerry
> -----Original Message-----
> From: Andrew Jacobs <Legal-Z@worldnet.att.net>
> To: datsun-roadsters@autox.team.net <datsun-roadsters@autox.team.net>
> Date: Monday, June 14, 1999 6:31 PM
> Subject: still no spark
>
> >first i want to thank ron for his input so far, as well as giving me his
> >phone number. i appreciate the hospitality of this list. now, on to the
> >problem at hand. i have changed the coil and the ballast resistor, the
> >points and the condensor. still nothing. i know my battery is ok because
> it
> >is still turning the engine over after maybe 20+ tries without any charging
> >inbetween. where else can i look?? i thought maybe the ignition switch,
> but
> >when i turn it to the on position, all of the accessories work no problem.
> >do i just need cut open every wire cluster and examine every wire? i hope
> >not, but that is where i'm going next unless someone has another
> suggestion.
> >i appreciate the help so far.
> >thanks,
> >andy
> >p.s. ron i didn't call you at home because it is getting late here, but i
> >appreciate the offer.
> >
> >
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