Posted by David on June 06, 1999 at 12:20:13:
I have a nice '66 WM300 with a 251. The engine has developed a bad knocking sound and I'm looking for help. This seems to have been getting louder and less intermittent as time goes on. You can only hear it when its idling. Below are two samples of the sound.
First Sample (344K)
Second Sample (284K)
Any ideas on what this is would be appreciated. Any comments on how to diagnose further would also be appreciated.
-- David