alternator + electrical niggles

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sierraspider
Posts: 171
Joined: Thu Jun 14, 2012 11:58 pm
Your car is a: 1982 Pininfarina

alternator + electrical niggles

Postby sierraspider » Thu Sep 28, 2017 12:26 pm

Couple of things

!. Charge/oil pressure lights not working when I turn on key
2. How do I check alt output. New battery keeps discharging

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RRoller123
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Joined: Sun Nov 13, 2011 2:04 pm
Your car is a: 1980 FI SPIDER 2000
Location: PLYMOUTH, MA USA
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Re: alternator + electrical niggles

Postby RRoller123 » Thu Sep 28, 2017 6:28 pm

I haven't done it, but I believe that you can take the Alternator to any Advance Auto Parts, etc. store and they will test it for you for free.
'80 FI Spider 2000 (rolling "resto")
'74 X1/9 (many years ago)
'79 X1/9 (fewer years ago)
'86 Jaguar XJ6 (2nd Hobby Car)
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/SB
2015 Keystone Montana High Country 343RL

GeorgeT
Posts: 304
Joined: Thu Feb 16, 2012 12:41 pm
Your car is a: 1982 Fiat 124 Spider

Re: alternator + electrical niggles

Postby GeorgeT » Fri Sep 29, 2017 8:55 am

1. Check the bulbs and the grounds for the lights.
2. You can drive your car to Advance Auto or similar store and the can check the battery and alternator without removing the alternator, that's how I found my alternator had a bad diode.

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RRoller123
Posts: 7020
Joined: Sun Nov 13, 2011 2:04 pm
Your car is a: 1980 FI SPIDER 2000
Location: PLYMOUTH, MA USA
Contact:

Re: alternator + electrical niggles

Postby RRoller123 » Sat Sep 30, 2017 7:27 am

Good to know, I thought you had to bring the Alternator in to a test stand in the store.
'80 FI Spider 2000 (rolling "resto")
'74 X1/9 (many years ago)
'79 X1/9 (fewer years ago)
'86 Jaguar XJ6 (2nd Hobby Car)
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/SB
2015 Keystone Montana High Country 343RL

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Nanonevol
Posts: 663
Joined: Thu Nov 13, 2014 9:17 am
Your car is a: 1977 Fiat 124 Spider
Location: Medway, Massachusetts

Re: alternator + electrical niggles

Postby Nanonevol » Sat Sep 30, 2017 10:25 am

If you put a simple voltmeter on your battery it should read 12 volts and go up to 14 or so when the car is running. That would show it's charging.
1977 Fiat Spider
1985 Jaguar XJ6
1967 Triumph Bonneville (hard-tail chopper)
1966 BSA Lightning

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Nanonevol
Posts: 663
Joined: Thu Nov 13, 2014 9:17 am
Your car is a: 1977 Fiat 124 Spider
Location: Medway, Massachusetts

Re: alternator + electrical niggles

Postby Nanonevol » Sat Sep 30, 2017 10:25 am

If you put a simple voltmeter on your battery it should read 12 volts and go up to 14 or so when the car is running. That would show it's charging. Or not.
1977 Fiat Spider
1985 Jaguar XJ6
1967 Triumph Bonneville (hard-tail chopper)
1966 BSA Lightning

sierraspider
Posts: 171
Joined: Thu Jun 14, 2012 11:58 pm
Your car is a: 1982 Pininfarina

Re: alternator + electrical niggles

Postby sierraspider » Sun Oct 01, 2017 9:24 pm

Thanks all... Will check out and get back


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