15-04-2020, 08:17 AM
Give it a spin back and forth, it'll turn the alternator one direction, but spin freely and not spin the core in the other, if you struggle to turn it back and forth due to the weight of the assembly, it's not a clutched one. Looks like you've already got one as they usually have that black plastic cap on them, but I've seen them without the clutch but with the black cap, so YMMV.