I started my engine work on a
V6 Toyota Tacoma 3 mohths ago and continuing now from where I left off. Back then I did a valve clearance measurement on all the 24 valves with all the timing chains on (main, left and right). I just took all the chains off and the reading I am getting are consistently 0.001" (one thousandth of an inch) less than what I was getting before.
Could it be that the removal of the timing chain caused a different reading (by slightly changing the position of the camshafts) or could it be because of different air temperature (August vs December)?