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1980 MGB on test drive suddenly loses electrics and dies - what to look at?

RickB

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I'm on my way to see the car, the owner just took it out and it died.
What should I look at first? He says it's electrically dead.
New battery one month ago is all I know at this point.
I have a digital meter and some scredrivers and a compression tester, an adjustable wrench and some needle nose pliers along with a ratchet and spark plug socket.

Now he says it progressively got worse fast, now the inside light comes on when you open the door and that's all.
GM alternator, I assume I can meter the thing somehow and tell if it's dead?
Something else?
 

drooartz

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Obvious checks are battey, alternator, or a ground. If you have a battery load tester you could try that. I don't know how to field test an alternator, but most parts stores can do that -- nut much help for you, though.
 
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RickB

RickB

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Battery dead terminal on back of alternator really loose, big Brown wires. am at car now, I guess bad alternator.
 

nomad

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Cheap alternator to replace, Rick, most auto parts stores can check them for you.

Kurt.
 

Billm

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Rick
You might want to email Rich Ball directly- he knows the electrics of the later cars better than anyone else I know
BillM
 

JPSmit

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Puts you in a stunning bargaining position though!
 
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RickB

RickB

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Yes JP it did. Car runs great now, it's parked outside my hotel room The missus is really pleased with it too. Post pics when we get it home.
 

JPSmit

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Yes JP it did. Car runs great now, it's parked outside my hotel room The missus is really pleased with it too. Post pics when we get it home.

:thumbsup: Well done! congrats - even though without pictures, it still didn't happen!
 
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RickB

RickB

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Alternator was shot, went to parts store got another and bolted it up. guy knocked a grand off the price and I'm a B owner again!!
 

aeronca65t

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Excellent! Welcome to the MGB/Spridget Owners Club! :smile:
 

Rut

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Excellent! Welcome to the MGB/Spridget Owners Club! :smile:

Indeed! Well bought Rick...good to have the forum support when you need it!
Rut
 

Bayless

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Nice bargaining. Good to see the BCF community coming through for you too.
 
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RickB

RickB

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Thanks, I'm going to have a bunch of questions but now I just need to get her home!
 
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RickB

RickB

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Rooadster!! Top down eastern Washington driving today!
 
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RickB

RickB

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Sunburned arms and all I'm here in western Washington again, what a difference - it's about 60F and overcast here, supposed to rain.
So the top went up when I parked in front of our house.
The drive was uneventful, I stopped once to put my jacket on up at Snoqualmie pass.
The OD seems a little touchy, actually a lot of the electrical is, and I know what needs doing, pull apart connectors, clean, make sure the grounds are rock solid.
More heavy duty questions will be in a new thread, so stay tuned.
Here were were at JD's diner for breakfast this morning.
 

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nomad

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Good looking B, Rick, and you can't beat an OD. I think I prefer them to a 5 speed.

Kurt.
 
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RickB

RickB

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