alternator question

Gotta love that wiring . . .
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81SPIDERMATT
Posts: 1239
Joined: Mon Oct 11, 2010 5:10 pm
Your car is a: 1981 spider 2000
Location: FORT COLLINS, CO

alternator question

Post by 81SPIDERMATT »

trying to hook up a headlight conversion kit and having problems... simple enough task but when i hook up the battery lights come on.... first question... should i be getting power to the back of the alternator with key off???
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azruss
Posts: 3659
Joined: Sun May 30, 2010 12:24 pm
Your car is a: 80 Fiat 2000 FI

Re: alternator question

Post by azruss »

Yes.
The lead from the battery goes to the starter solenoid top lug. one of the wires from that lug goes to the B+ alternator lug
spider2081
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Patron 2024
Posts: 3009
Joined: Fri Jan 27, 2006 11:45 pm
Your car is a: 1981 Spider 2000
Location: Wallingford,CT

Re: alternator question

Post by spider2081 »

Don't forget most Spiders headlight switches are "OFF" in the up position and that the parking lights come on with the ignition switch in the "OFF" position. Both are "OFF" when the headlight switch is in the "UP" position.
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kmead
Posts: 1069
Joined: Sat Aug 02, 2008 9:24 pm
Your car is a: 1969 850 SC 1970 124 SC 85 X19
Location: Grand Rapids, MI

Re: alternator question

Post by kmead »

It seems like you have attached an always on wire to the exciter side of the relays (86).

You should use a wire that originates from the light switch or is controlled by the light switch to go to the 86 connector of the relay. Wires you could use are already at the lights: the original low beam and high beam wires (previously attached to the headlights themselves) which should go to the 86 connector of the low and high beam relays. The always hot (with an inline fuse) line from the starter or alternator should be going to the 30 connector.

A good reference can be found here:
http://www.danielsternlighting.com/tech ... elays.html

The side marker repeater modification of the turn signals is also a real nice thing to do as well (you would use the "crossfeed method") :

http://www.danielsternlighting.com/tech ... flash.html
Karl

1969 Fiat 850 Sports Coupe
1970 Fiat 124 Sports Coupe
1985 Bertone X1/9
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