R1 Alternator question

[Paul Parker]

The '63 R1 I inherited from my dad, an electrical engineer for NASA who bought it new, no longer charges the battery.   What should be my first step?  

A tiny bit of background;  when I got the car 8 years ago, it ran great.  AC blows cold, everything works as  it should.   Then it sat too long.    The horn and interior lights quit working.   Otherwise, it still runs beautifully until the battery dies.    Now the lack of charging.      Could something other than the alternator be the issue?   

Dad moved the battery to the trunk and put a fake up front. 

Do people still rebuild alternators, as I saw my dad do for countless other cars and maybe even this one?   I'm curious about that Wilson sticker...

Paul in Sarasota, FL

[mfg]

The alternator looks to be rebuilt… Trouble could be in the voltage regulator.

[IdahoBen]

There is a local place here in Idaho that still rebuilds them.  They put in new bearings checked it and the voltage regulator

[Paul Parker]

11 hours ago, IdahoBen said:

There is a local place here in Idaho that still rebuilds them.  They put in new bearings checked it and the voltage regulator

Did you take them off the car and take them to the place?

[mfg]

Could be a weak battery…. Try a multi meter across the battery terminals with engine running… You should see around 14 volts if alternator is charging.