In true Morgan style, mine is1972 but had an ACR alternator - only two wire and no Warning light relay/ Alternator Relay or Alternator Regulator.
The wiring diagram in my first post was for a 1973 4/4 and apart from the errant Brown wire is correct for mne. Mine is registed Dec 72 so they may have changed from AC to ACR towards the end of 1972,
