This will sound daft, however, update on type of noise its an eek eek eek rapidly together, the amount of eek’s depends on the bumps (I visions of you now trying it)!
I can not replicate the noise on the car whilst standing; bumping her up, down, left, right or shaking the engine to and fro.
That alternator is very close to the inner wing mind, so will check that.

Many thanks


ABBO
Morgan 2005 Roadster
Morgan 1986 4/4 4str Prev
Morgan 1953 +4 DHC Prev
Flippin Pongo 3008 Hybrid