[chiphead]

to set the rocker preload, I put each cylinder at top dead center at the compression stroke and set both the intake and exhaust valves on that cylinder at the same time.

before you take the polylock loose, check for excessive slack at the push rod. excessive slack means you either did not have enough preload the last time you set it, or that lifter plunger is collapsed.

Also check how far down do you have that polylok adjusted. You could have too much or too little preload from the last time you set the Rockers. write down on a piece of paper any rocker that you think may have had too much or too little adjustment or kind of looks questionable when you reset it.

Only then do you take the poly lock loose. Verify you have up and down slack at the push rod, then slowly hand tighten the polylok until the vertical up and down jiggle at the push rod goes away. You should be able to rotate the pushrod by the tips of your fingers but not feeling up and down slack between the lifter and The Rocker. That's about zero Lash. Tighten polylock 1/2-3/4 turn past that and that should give you a decent amount of preload. I always do it by feel, I don't use a wrench until it's time to give it that extra half turn to set preload.

Once you have all 16 valves set, Crank It Up and let it run for several minutes. it should start to run smooth and noise should start to go away after about 90 seconds to two minutes. it can take up to 2 minutes before you get good oil flow out to the passenger side valve train.