# 1 STUPID DESIGN ERROR OF THE DELCO CS-130 ALTERNATOR
This is perhaps the pinnacle of stupid Delco alternator designs. Look at the image below. In the center is a completely exposed A6000xx ball bearing. Not only is the bearing exposed to the engine compartment, the bearing becomes -extremely- magnetic as the alternator charges. Tens of thousands of failures because this bearing gets contaminated, seizes, and blows the drive belt leaving the car stranded on the shoulder of the road.
PARTIAL SOLUTION for brand new alternators or replacements
Use a piece of high quality duct tape and tape a swatch over the bearing hole. Don't block any case ventilation holes.
