Soooo I had the minimatic alternator in the old girl swapped out with a bnew 70amp one. (well my technician at work did)

battery light comes on a bit. But wont start. LOL what has he done? what should I check? did the standard minimatics still have positive ground? it had a radio in it previously that I took out.

I'll bung the old one back on tomorrow first and hope for the best. Then probably get an actual sparky to do it for me.

Is there anything I need to do before hand though? like change wiring over or what not?

Early Matics had a generator and positive earth. (though the polarity is easily changed)
Later Matics had an alternator and negative earth.

Flat battery?

cheers,

Jacob

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'72 Clubman Van - 1022cc, 295 head, 731 cam - Daily Driver
'69 Morris 1100 S - Dinged by a bus, in shed under repair
'64 Morris 1100 - Early 1100, long term project

How would I go about telling what mine is?

Actually lol it's already got an alternator lol

Did you take generator off and fit alternator? If so, what did they do with generator wiring/regulator? Maybe problem is there?

I'm not too sure what it had originally.

The alternator thats in it now is a lucas one.






not sure if you can see any detail in that. Thats what was on there and thats how it was wired.

what was on there



whats on now

so at the moment it does nothing?

Is the gear lever in Neutral?

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DID I MENTION THAT I AM THE BEST SUPPLIER FOR MINI ELECTRICAL PARTS AND REPAIRS?
"Let us remove your "SHORTS"

Lights come on (but he says he doesnt remember). no start. have not tried this morning. also told tech the inhibitor might have been on. will try when workshop is a little quieter

ummmmmmmmmmmm

it was the neutral inhibitor. LOL

On a side note, you should have another cable running from the alternator to the positive terminal (the starter solenoid is a good place to run it). The original alternator was designed to run maybe 40amps max? If you run more current though those old wires they can heat up and do bad things. That's why the alternator has another terminal on it (I think it's the once covered by the black plastic in your picture). You should run a thick cable from there to the starter solenoid to be safe.

It's unlikely to cause issues as is, but if you are using any extra current, use the extra wire.

The new 70 Amp Alternators I sell come complete with fitting and wiring instructions and the extra load cable that is necessary.

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DID I MENTION THAT I AM THE BEST SUPPLIER FOR MINI ELECTRICAL PARTS AND REPAIRS?
"Let us remove your "SHORTS"

can i get the cable separately?