Gordon,
The original alternator was the Lucas 10AC (rebuilt US$152.50).  If the
orginal components have been removed, you will need a Lucas 4TR voltage
regulator (US$38.26), the field isolation relay (US$28.61), and a
warning light simulator relay (US$25.78).  From my experience, the
Sunbeam alternator is unique.  Other manufacturers use the Lucas 10AC
but the Sunbeam has the mount for the adjustment arm in a different
location.  The parts I have listed are available from Sunbeam
Specialties in Los Gatos California (408) 371-1642.
Good Luck
Tom Hill
Gordon Thompson wrote:
> 
> Hello All,
> 
> Haven't been to the office for some time so I was mildly surprised at
> all of the Alpine traffic.  You are a prolific bunch when it comes to
> your Sunbeams.
> 
> A couple of people answered my initial posting and recommended I use
> another alternater rather than the original. I agree it was a pain and
> initially replaced it with a Chevy 396 externally regulated
> alternator.  It fit the bracket, but was an inch or so behind the
> original.  It looked weird as the fanbelt had the bends in it, but the
> thing worked.
> 
> I thought since I was in a country that has a lot of British cars one
> or two could be found here.  Since the car has such few miles on it,
> it would be nice to keep it original.
> 
> I think the original alternator was a Lucas, but I don't have any part
> numbers to work with.  Does anyone have a part or model number?
> 
> Thanks,
> 
> Gordon
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