with a feather-duster touch you can feel the point of zero lash on any lifter, pumped up, bleed down or brand new fresh from the box. i prefer to work on completely bleed down lifters so the feel doesn't change drastically at some point when the adjustment meets the plunger oil. IMO priming the engine by spinning the oil pump prior to setting lifter preload is a mistake, there's no need for the lifters to be pumped and causes much confusion.
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