Maybe something rattling around in the bellhousing, like a piece of clutch, spring or lining, loose bolt, hope not.
Try taking the fan belt off and see if the noise stops, check damper pully, rocker cover off check rockers and valve springs, all things you can do without involving a mechanic, Regards Frank.
What Goes Around, Comes Around.
94 Disco 300TDi Auto, with the Lot
93 Disco with the lot, Gone
78 Series III 109, Diesel.
Toyota BJ 40, Gone
Ford Bronco WOW, Gone
Toyota 4Runner RIP
F100 4WD, Unbelievable, Gone
Suzuki Brilliant, Gone