Battery goes dead

Gotta love that wiring . . .
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dwcars0

Battery goes dead

Post by dwcars0 »

My 1985 Spider works great, but if I am running with the lights on, after about an hour the battery is going dead because the turn signals get slow, then quit and the head lights get really dim. Also, the car won't restart. The alternator bench tested 14 volts, and I get 13.8 volts at the battery. The battery is new and the battery connectors and ground clamp are clean and tight. After charging the battery, its great till next time I use the lights. Any ideas?
polevaulter999

Re: Battery goes dead

Post by polevaulter999 »

Sounds to me like you have a short in the positive cable coming from the battery. take out your back seat(extremely easy, just pull it out)and check your positive cable from the battery forward. theres a small bracket under the rear seat that sometimes will rub a hole in the rubber cover of the cable. if thats not where it is, check where it runs along the floor panels on the drivers side
So Cal Mark

Re: Battery goes dead

Post by So Cal Mark »

a short in the positive battery cable would cause a complete meltdown of the cable and most likely a fire. Have you tested the charging system under load for both voltage and amperage?
dwcars0

Re: Battery goes dead

Post by dwcars0 »

Hey Mark, that was a post I put up in April 2007! Turned out to be a bad alternator. It would put out 13 to 14 volts, but the voltage would drop as it got hot. Got it rebuilt and no more charging problems! In regards to another post I had with you, I installed the 4 new Koni struts on my X19 and the car handles much better! I left the springs original and didn't try cutting them. Thanks. Dan
Hvnfn

Re: Battery goes dead

Post by Hvnfn »

My car has been acting up like this, only it is with the starter... let the car sit after driving it for a bit... when I go to restart it... it acts like a dead battery... will barely turn and start... at other times the starter goes into hyper where it turns SUPER fast and then it starts.... wierd. after running for a few minutes, turn the car off and restart with no problems... it is very intermittent.
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TulsaSpider
Posts: 1547
Joined: Tue Apr 29, 2008 7:33 pm
Your car is a: 1978 Spyder 124 2L
Location: Tulsa, Ok

Re: Battery goes dead

Post by TulsaSpider »

Wow so this was a "ghost post"! Still nice to see the problem and solution!
1978 Spyder 1800 make that 2L! Finally making real progress!
Hvnfn

Re: Battery goes dead

Post by Hvnfn »

Turns out I have a flat spot in the starter... time for a new one.
mbouse

Re: Battery goes dead

Post by mbouse »

my wife thinks i have a flat spot on my head...is that time to getta new one?
mdrburchette
Posts: 5754
Joined: Wed Jan 25, 2006 5:49 am
Your car is a: 1972 Fiat 124 Sport
Location: Winston-Salem, NC

Re: Battery goes dead

Post by mdrburchette »

mbouse wrote:my wife thinks i have a flat spot on my head...is that time to getta new one?
From what I've seen, probably wouldn't hurt. :mrgreen:
1972 124 Spider (Don)
1971 124 Spider (Juan)
1986 Bertone X19 (Blue)
1978 124 Spider Lemons racer
1974 X19 SCCA racer (Paul)
2012 500 Prima Edizione #19 (Mini Rossa)
Ever changing count of parts cars....It's a disease!
Hvnfn

Re: Battery goes dead

Post by Hvnfn »

Sounds about right...
racydave

Re: Battery goes dead

Post by racydave »

No, you had better keep her! 8)
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