Our Mini restoration project has made great progress and we now have the egine in and mostly connected (still some work needed on the carb and exhaust).
Since the engine is a 'new' reconditioned unit, we put oil in and turned it over on the starter. The good news is the oil pressure warning light went out so I'm pretty certain the pump is working as expected.
However. I posted a short video on Twitter (https://twitter.com/...234057990221825) and at about 10 seconds, when my son stops running the starter, there is a rather strange buzzing sound. Soneone suggested this might be the starter solenoid but I'd be really grateful if anyone can identify what this is and explain what, if anything, we need to do about this. It's a bit unnerving but doesn't happen all the time as the second run shows.
Thanks in advance.