a/c pulley bearings bad design

["Walter" <Whalt@xxxx>]

I am complaining about the a/c pulley bearings on my DeLorean. I replaced
them about 7K miles ago, and the lower one went bad again! I'm very sure
that the cause of the problem is that it got cooked by the heat from the
muffler. My original bearings were bad on the car when I got it, and it had
around 8600 miles on it then. So what is the deal with these bearings? Are
we supposed to replace them sooner than every 10K miles? Or is there a
better heat shield available out there that is larger than the OEM that
protects this bearing? If no one makes it, then I'll have a local shop
custom make one.

Okay, I'm through venting now.
Walt Tampa, FL