Ok... I am not sure I have this timing thing down and would appreciate some outside input on my work.
One of the issues I am not sure I understand is the relation of the cam keys to the Z-mark. Everywhere I have read says all three should be straight up when the chains are installed. However, I made adjustments to the cam to set the timing. This has changed the key-to-Z-mark relation completely.
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The following pics and info describe my current status for the #1 intake only (3.0L/'82). I hope this will make sense to readers.
1) Z mark-to-case-split is set to exactly 1 ccw dial gauge rotation (-1mm).
The intake is beginning to open at this stage.
2) After 1/4 cw crank rotation past the case split, the dial gauge has unloaded 10.415 ccw rotations (-10.415mm).
The intake is fully open at this stage.
3) After a .4 cw (approx) crank rotation from the last stage the dial gauge is back to 0.
The intake is fully closed at this stage.
4) From the last stage, it takes 2.35 cw rotations (approx) for the process to start again at stage #1.
Does this sound correct?
Thanks in advance for you help.
Eric J.