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Hey Folks, first time poster here...I am in the process or sorting out a 1974 GTV 2000 that I just bought. ( I had a 1750 GTV 1969 model about 15 yrs ago and loved that car, but that is another story) I will be glad to post photos and tell the story of my new car, but right now I am trying to sort out a low charging situation. Alt light glows faint red when it is running. A voltmeter shows about 11.8 volts when she is running. It might need a new alternator (I just put a new battery in it) but I am wondering about the grounds. I cant seem to find the braided strap running from engine to body...where should that be on this car? Near the starter? If anyone could post a photo where it is supposed to be that would be great. I think I am missing the strap which may account for the weak charge? Thanks for the help.
 

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rockiemosley:

I doubt that a bad ground is the cause for your charging problem - however, your car definitely should have a ground strap. Yes, it goes near the starter. At the engine end, it attaches to the bottom stud that secures the bellhousing to the block. At the chassis end, there is a dedicated, tapped hole in the body, just outboard from the starter. The short bolt that goes into this hole is oriented vertically, with its head facing the road. A generic, braided ground strap from a NAPA auto supply store will work.

My recommendation would be to take your alternator to a local shop that rebuilds starters and alternators - most every metropolitan area has a few of these shops - look in the Yellow Pages under "automotive electrical". It is a standard Bosch alternator - the shop should be quite familiar with this type of alternator - don't let them tell you "we don't work on no Alpha Romeros". You might also replace the voltage regulator - these shops sell a solid state version that bolts right in, and is quite inexpensive.
 

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The ground strap goes on the carb side, the engine mount has a copper flat wire that runs over the rubber. I have yet another on the exhaust side, put it there 35 years ago. Ground problems were common then. There should also be a copper ground between the engine intake manifold and the carbs.
 

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The alfa's ground strap is from the bell housing near the starter bolts to the body. It can be seen only from under the car. It's a braided copper under 1 inch wide and about 6 to 8 inches long .

There is a smaller braided copper strap on the carb cars - that connects the carbs and their intake to the engine. Its purpose is to prevent a spark that might ignite gas or vapors in the intake maniford, sincde the rubber isolator blocks are electrical insulators.

Robert
 

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Just wanted to post these pictures here for future reference in case someone is looking for the exact location of the ground cable. I just swapped mine and took a bunch of photos

The first photo was taken from behind the front right wheel. The second photo from right under the rear of the engine.

1624295


1624296
 

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I may be wrong here but it looks to me like the strap goes from one part of the engine to another part of the engine. It needs to go from the engine to some where on the body. Feel free to correct me if I'm wrong here.
 

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I may be wrong here but it looks to me like the strap goes from one part of the engine to another part of the engine. It needs to go from the engine to some where on the body. Feel free to correct me if I'm wrong here.
it;s engine to body, the wider shot where i;ve outlined in red the cable highlights it better.
 
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