Engine rattling noise and solution

[rogold]

   I have noticed my engine making a rattling noise lately and getting louder. I thought it was the timing chain rapping against something.

   I pulled the serpentine belt off and started jiggling all the pulleys. Lo and behold the water pump had lots of movement and rattled when moved around. Funny thing was, I had changed this pump before, roughly 10 years and 10k miles ago, It was a ACDelco unit. Also, it was not seeping out the weep hole.

  Installed another supposed Delco unit, rattling noise is gone. I guess I should be glad it lasted 10 years, even with the little miles put on it.