I have been having problems with my alternator, while the engine is running the ignition light seems to go out, however, when in my garage the light very faintly glows. I realised a while back that there was an earth wire to the alternator which had come adrift. When I changed the oil in my Stylus I found a sticky 'Goo' on the oil filter just under the alternator and found this:-


Alternator

the red area is the 'Goo' and the green area is the source, inside the green circled item is this:-


goo

I assume that this is shot and needs replacing. The alternator has no markings on it and came with the car.
Any suggestions welcomed.

Are some components in alternators oil filled like coils are?

That looks like a lucas acr clone, the regulator has overheated and boiled the potting compound.

Starterman on here may know more and can supply a well priced replacement if it's not repairable. If it is an acr, the later a127 type should be a bolt on replacement with more modern internals.

Dave

as above, I hope starterman picks this up,

but to quote the paranoid android, 'this terrible pain in all the diodes down my left side'

Rather gross looks like it has a bad case of earwax

Message starterman direct on here and ask him for some advice/help. It may be something he can help refresh for you.

Can somebody also tell me what terminal B is for?


Description

Not sure what "B" is for - do you have it connected to anything?

No there was/is nothing connected. Just wondered what it was for.

quote:

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Originally posted by nick205
Not sure what "B" is for - do you have it connected to anything?

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quote:

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Originally posted by jollygreengiant

quote:

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Originally posted by nick205
Not sure what "B" is for - do you have it connected to anything?

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30 seconds of search on Google =

Can you use B+ and B+ terminals in alternator?
But if you have both + and B+ terminals then work to the principle that + is the output and B+ is the battery sensing terminal. The B+ terminal can safely be connected to the output terminal in the alternator plug if you only have output and indicator wires in your harness.

Alternator Terminals
www.mgb-stuff.org.uk/altplug.htm

or

12 rows · Alternator Terminal Identification Chart. TERMINAL TYPICAL FUNCTION; Main Power …

TERMINAL TYPICAL FUNCTION
B+ , 30 Battery Positive
B- , 31, D-,GRD Battery Negative
E Earth - Battery Negative
F, 67 Field/Rotor

or

If there is no '+' terminal on your alternator, but there is a 'B+', then it may well be the output. But if you have both + and B+ terminals then work to the principle that + is the output and B+ is the battery sensing terminal.


just sayin

JGG

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All fixed thanks to new alternator from Starterman.