Engine Died then came back to life

[sntrym95]

I just had a CS130 back bearing go bad it was a knocking sound. Since it was still under warranty from the local electric shop (it's a 220amp alt), I took it in and I watched them replace it.

You need to take the alternator apart as the bearing presses in from the inside so the whole coil assembly has to come out. Took the guy 5 minutes maybe to replace it. I diagnosed the noise with a screwdriver - flat end on the alternator and the plastic end to my ear. Tried a few different parts like the A/C compressor and idler pulley then the alternator to find it.