1960 Giulietta Spider, no Electric power. - Alfa Romeo Bulletin Board & Forums
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post #1 of 16 (permalink) Old 08-19-2019, 07:31 PM Thread Starter
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1960 Giulietta Spider, no Electric power.

So had a great weekend fixing the master cylinder, cleaning up the chrome bits and re-upholstering the door cards (really my wife did that part)

After finishing, we wanted to take is out and enjoy it after a long day. I turned the key and the car fired up briefly then died.

After it died I had no power to start it or to the headlights, gauge lights etc.

I traced power from the battery to the starter and it has 12v at the starter solenoid. But that is far as I got.

Anyway, I don't think power is making it to the key but I am just learning about electrical wiring so trying to figure out the best way to troubleshoot.

I found a manual and created the picture below with my understanding of how the starter fires up. I checked power at the end of point 1 in the picture and got 12v. So wondering....Is the picture correct? And if so is checking voltage at point 2 and onward the way to troubleshoot?

Anyway, any help is appreciated. And yes, the positive cable does go to the starter in my car. Guessing the previous owner made that change.

Also included some pictures of the new door cards, cleaned up chrome bits and also the cleaned up white vinyl seats (they used to be brownish but the MagicEraser is amazing!)
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post #2 of 16 (permalink) Old 08-20-2019, 03:32 AM
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Your headliights and horn etc should operate without the key switched on or with the key in your pocket. Good diagram BTW.. I think .. Didn't check for accuracy..


FWIW your door pull hinges are upside down ..they are not visible when the pull is at rest.. Common faux pax even by high end restoration shops. Magic Eraser? Gotta check that out. Can you use it as dog shampoo?
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post #3 of 16 (permalink) Old 08-20-2019, 01:25 PM Thread Starter
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Thanks for the heads up on the door handles! Funny I even saw from pictures online that you couldn’t see the hinges but we took them off that way and I just figured mine we not originals.
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post #4 of 16 (permalink) Old 08-20-2019, 01:53 PM
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The small wire from the solenoid to the voltage regulator is bad. This wire energizes the entire electrical system.
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post #5 of 16 (permalink) Old 08-20-2019, 01:59 PM
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I would check the third fuse from the left in your box, it deals it the powering the junction block that many of the accessories are associated with as well as the ignition switch.All the wires going to this fuse are red. If the fuse shoes good, I would verify power across it with a meter or test bulb.
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post #6 of 16 (permalink) Old 08-20-2019, 02:56 PM
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I once had a similar problem. Ran fine when I parked it. An hour later, nothing. Turned out to be a dead short in the starter. However, that is likely not your problem. Your problem is obvious: YOUR GARAGE IS TOO NEAT AND ORGANIZED. A neat garage negates all good acts.
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post #7 of 16 (permalink) Old 08-20-2019, 06:49 PM
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I'm curious --what's your Chassis number? I have 1495 09077.

Dan-Los Angeles.
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post #8 of 16 (permalink) Old 08-20-2019, 07:56 PM
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Your door pull "hinges" are also flipped. They should be hidden from view.
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post #9 of 16 (permalink) Old 08-20-2019, 08:50 PM
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Primary electrical connections are suspect here. Check (remove, clean both cable end and battery posts, reconnect) both cable ends at the battery, the starter and battery chassis ground.
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post #10 of 16 (permalink) Old 08-21-2019, 12:41 PM Thread Starter
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Quote:
Originally Posted by Chas H View Post
Primary electrical connections are suspect here. Check (remove, clean both cable end and battery posts, reconnect) both cable ends at the battery, the starter and battery chassis ground.
Quote:
Originally Posted by RWCearley View Post
The small wire from the solenoid to the voltage regulator is bad. This wire energizes the entire electrical system.
This turned out to be the problem. I was able to take off clean the connections at the starter as well as at the battery ground ans was back in business.

Thanks for the help!

Tonight I am going to get the door hinges flipped and then onto the next item.
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post #11 of 16 (permalink) Old 08-21-2019, 12:47 PM Thread Starter
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Quote:
Originally Posted by DSMINT View Post
I'm curious --what's your Chassis number? I have 1495 09077.

Dan-Los Angeles.
Mine is 1495 08840
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post #12 of 16 (permalink) Old 08-22-2019, 10:32 AM
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I have 1495*08930 and 1495*10990 in the fleet, both were originally AR 301 Celeste Blue like yours

08930 (Feb '60) has a mix of aluminum and stainless trim, while 10990 (15 July '60) is all stainless

Ciao
Greig

Some 750's
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post #13 of 16 (permalink) Old 08-22-2019, 04:39 PM Thread Starter
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That sounds like a really nice fleet of cars you have!
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post #14 of 16 (permalink) Old 08-22-2019, 04:43 PM Thread Starter
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Your door pull "hinges" are also flipped. They should be hidden from view.
Great pictures and switching these today. I knew those didn't look right but the car came that way so I guess I can console myself in that at least the previous owner made the same mistake
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post #15 of 16 (permalink) Old 08-26-2019, 07:54 AM
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Late to the party ..

Searya
Glad to read you've resolved your problem.
Clean connections and GREAT grounds are paramount to avoiding electrical problems.

An understanding of the circuitry can also prove helpful.
Towards that end, I've modified your simple drawing and added a pic of an actual control box, as wired in position.
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