Since none of the experts are up yet, I'll take a shot....
Tom Wagner - Program Manager wrote:
>
> Is there a way to test the alternator
> on my 67 B, to be sure that there is something
> coming out of it to recharge the battery.
Well, a big, thick, wire would be your first clue.
> Is it still true to disconnect the battery as
> a test???
That would be an excellent method to assure you need
a new one.
>
> Thanks to all.
You get what you pay for...
> 67 MGB
Step 1: Get any old voltmeter that will read at least 15 volts.
Step 2: Start your car and turn on headlights
Step 3: Read voltage across battery. If it is over 13 volts,
you don't have a charging problem, you have an
alternator.
Step 4: Have someone rev the motor to 3,000 RPM. Read voltage
across battery. If it is over 13 volts, you don't have
a charging problem, you have a Lucas generator.
Step 5: If your still here, you'd better hope someone
smarter than me reads your post. At this point, if
all the wiring looks okay, I send the alternator out
to the rebuild shop. If it's a gerneator I replace the
brushes. If it's the voltage regulator for the generator
then I get confused easily and read the service manual
very carefully.
BTW: '67 B's had generators, not alternators.
If you have a generator and you ain't been in it
lately, you can be pretty sure you need new brushes.
I like to replace them just about as often as points.
It ain't hard: take it out of the car, remove the
back plate, install new carbon sticks (brushes),
smooth out the commutator (the round thing with
copper on the end) with a pencil eraser, and put
it back in.
Bob Allen, Kansas City, '69MG/CGT
--
*** STANDARD DISCLAIMER
*** Please assume all lines end with smiley face emoticon :-)
*** unless passage contains improbable anatomical action phrases
*** in which case the raspberry emoticon can be implied ;^P***
|