Anything to know about removing the lower pulley?

Noticed a knocking in the starboard engine, started looking around ans 2 of the 3 bolts had snapped off!!

This is a 177 with a standalone blower belt. Not a serpentine combination

Never mind. I got it out and was able to use an extractor to get the broken bolts out.

Could have been a bigger nightmare.

snap on makes the best broken bolt extractor set i have ever used...