Neutral
No. 6 cylinder, yes same cylinder. Removed broken lifter, installed used lifter that was not broken. Same tap noise. There is still a second lifter present in the engine that has a broken lip. It is not tapping. I worked with the broken lifter in no. 7 because I was able to fish out with a magnet and hook tool and reinstall different lifter through small passages is the head.
This noise really sounds like a lifter tap. As I tightened the valve adjuster, I was able to bleed out the hydraulics and bottom out the hydraulic lifter. I could see the spring start to compress, then back of the adjuster to essentially a solid lifter, then no tap, tap. I did not try to drive the car like this, only engine idle. I tried to remove the small snap-ring and disassemble the lifter. on tap-tap lifter. I could not get the plunger (hydraulic guts) out past the tie-bar rivet.
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