BLUF, I haven’t resolved it yet but I’m pretty sure I know what the issue is.
I do think that the babana-ed pushrod-gate damaged the lifter. I would agree with the feedback above and that oil doesn’t seem to be getting through the pushrod, at least initially.
After about a mile or two the problem goes away - the lifter seems to pump up.
As for the rest, I think it was a tempest in a teacup.
The valve train noise, I got used to. I think it’s completely normal for the hardware I’m using, the XE cam and the roller rockers. There’s no binding anywhere.
The rapid vibration of the cam seems also related to the nature of this cam.
And so, over the past months, I simply enjoyed the car. I took the car on a few “rallyes” and simply enjoyed it… as much as I could, knowing there was a lifter issue.
Also over the past months, I have been dealing with some professional issues - quite serious ones. I was too preoccupied to work on the corvette. The issue just got resolved the week before last but I was running on gasoline vapors and showing symptoms of a burnout.
Speaking of burnout, I’ll be taking the corvette out tomorrow and getting an eye on that lifter.
My plan is to cold start with a valve cover off and see if the ticking is coming from the rocker that bent a pushrod.
Stay tuned !!!