I have only ever adjusted valves using a feeler gauge. Its been awhile as most engines i play with now have hydraulic setups.
Your post helped me significantly. It prompted me to research the different methods of setting valve lash (didn't realize there was different methods for different lifters/setups) and discovered I did it wrong initially. I do have a hydraulic cam/lifter and I used a feeler gauge to give it 30 thousands clearance when it looks like I should have got it to 0 lash and then tightened the nut an additional half turn. So with that clearance I expect they are all too loose, which is why I'm hearing all kinds of clacking. Phew, At least I didn't over tighten and bung up my rods/lifters.
I'll be redoing the lash in this manner with the engine off later today. Thanks again.
