morning !

converting a generator to altenator, the wiring has me stumped.

is there a wiring diagram with colours or something similar to that to help out??

i have read the thread in the how to, but im unsure where the wires are that need changing etc.

thanx for your help

cheers jamie

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-jamie-
1963morris 850
1965 solid side van
1994 rover racecar

if your not sure what your doing, best to pay a auto electrician, much cheaper than your mini catching fire

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

Slightly different discription from KC - I might add I took coloured photos of the wires before and during removal - just to be sure

Take the regulator box cover off and dismantle it. Remove all of the coils, contacts and connections to the blade terminals on the bottom of the unit, but retain the blade terminals. Double check that all connections to the terminals are removed, then using some heavy cable - 2.5mm or larger - solder links between terminals A, A1, and D, connecting all three together. Now solder a link between terminal F and E. Replace the box in the car and re-connect all the wires to their relevant terminals except the ignition warning light wire (brown/yellow) which must now be connected to terminal E. Connect the ex-dynamo wires to the alternator - large connector to the large terminal (output connection) and the small one to the small terminal next to it (sensing terminal)

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David L


My greatest fear in life is that when I die my wife will sell my Mini and tools for the price I told her I paid for them!

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-jamie-
1963morris 850
1965 solid side van
1994 rover racecar

Sounds easy enough to me - I'll be doing the same once I get the current page of "to do's" out of the way.

By the sounds of it, no wires to change. Do you know where your regulator box is? Should be over on the drivers side inner gaurd - closer to the front of the car than the fuse box if I recall correctly.

Carry out the required task in there, then swap the actual gen for alt and connect the same wires as per the instructions.

Don't mean to offend you at all, but do you know "what and where" your regulator box is? Just trying to work out where your getting stuck.

yeah thats the main troubles, and nah not offended at all.
im gonna take the horrible heater out tahts takin up so much room in my engine bay,

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-jamie-
1963morris 850
1965 solid side van
1994 rover racecar

Also you need to know what alternator you are useing - ie does it have an inbuilt regulator or an external one. The above instructions are for an alternator with inbuilt regulator. (most common) but there are some that rely on an external regulator - if one of these then hook up is different

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David L


My greatest fear in life is that when I die my wife will sell my Mini and tools for the price I told her I paid for them!

A quick question from a noob:

Why bother converting from generator to alternator??? Does positive to earth have serious problems?

An Alternator puts out more power at lower revs ( like at idle) A generator at idle can actually be discharging the battery (you will see the ignition warning light flickering)A generators output is also very speed (RPM) dependent where as the alternator is a smoother and more constant supply - particularly under (electrical) load

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David L


My greatest fear in life is that when I die my wife will sell my Mini and tools for the price I told her I paid for them!