That's crank whip tearing the ass out of your accessory belt. You can get a stronger belt, like a gatorback, or a DMD Dual-Mass Damper) for your crank (better idea) to stop this.
This is an older thread, you may not receive a response, and could
be reviving an old thread. Please consider creating a new thread.
New Cougar Forum
A forum community dedicated to New Edge Mercury Cougar owners and enthusiasts. Come join the discussion about troubleshooting, builds, ZETEC, maintenance, performance, modifications, classifieds, and more!