Re: No Spark 85 Caprice

"Caprice85" <user132384@xxxxxxx> wrote in news:1124643259.980126.29920
@g47g2000cwa.googlegroups.com:

> Kjun,
>
> Thanks. Does B+ stand for Battery positive (12v) ?
>
> I went out to test it, thinking the car would not start, but this time
> it started, and that was without touching a thing since it last failed
> to start.
>
> However..... I heard the fan belt on the alternator making a slight
> squeal now and then, like something was drawing current now and then.
> Or maybe it was just recharging the batt from all the cranking I had
> been doing. The alt got warm after only a minute of idling, and after 4
> minutes it was downright hot. It was putting out 13 volts as measured
> across the battery posts. It's at least 8 years old.
> I could make the alt belt squeal or not squeal by moving the wiring
> connector to it. That's been a characteristic of this car for years,
> though. But the fact that the alt got hot so fast has me thinking the
> brushes are worn out, or maybe something is drawing a lot of current.
> Maybe the alt has nothing to do with the no spark on startup. Maybe
> it's a separate problem.
> Does anyone know if a looseness in the alternator wiring connections,
> or worn out diodes, or voltage regulator, or something else, could
> cause a "no spark" condition on startup?
>
> I know I'm asking a million questions, and I appreciate the responses.
> I'm out under the hood of this car every day with my neighbors watching
> me. I'm trying my best !
>
> Luckily I have another car to drive until I get this one figured out.
>
> Thanks
>
>

dont let the neighbors worry you..yes B+ means battery positive voltage.
if it were me i would get a QUALITY rebuilt alt. and replace the pigtail
on the harness (if its the connectors in the harness causing wiggle room)
but i still cant see the parallel between alt. noise and cranks but wont
start conditions. again, if it were me, next time it cranks but wont
start i would give it a blast of starting fluid in the air intake unless
your ABSOLUTLY sure its a no spark prob........kjun..

ps...if you open up the large loom by the brake booster coming out of
firewall you will find a large purple wire (solenoid engagement circuit).
if you tap into it with a switched B+ signal you can be under the hood
while trying to start it. turn ignition switch to run before trying to
start and make SURE veh. in park. this bypasses ign. switch and neutral
safty switch for engagement.
.

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