The reason I'm asking is that I did what the Haynes repair manual suggested which is to put the motor at TDC, tighten the listed rockers 3/4 to 1 turn after all play has been removed from the pushrod, rotate the crank 1 revolution and tighten the remaining rockers in the same fashion. Well it didn't work. I even did it twice to make sure and they still click like crazy. So does anyone have a better suggestion for tightening these things to where they don't click at all? Also, I have aluminum roller rockers in the motor. Thanks.