Bulley wrote:
Lifters, however don't usually make a knocking sound...more like a TACK,

> TACK, TACK, TACK, TACK TACK, TACK, TACK, TACK. A knocking sound THACK-A,
> THACK-A, THACK-A, THACK-A is upper end bearings. A deep, THOCK, THOCK,
> THOCK, THOCK is lower end. A main bearing can be quiet, or can sound like
> all hell breaking loose, depending on severity and location of the bearing.
>

I think mine is more of a TICK-A, TICK-A, TICK-A, sound