bad lifter or rocker? video

Everything went together nicely with the exception of one rocker shaft. Seems there's only one way the rocker shaft can go on((middle bolt not perfectly centered?). After I got all the rockers and nylon buttons on, the middle bolt hole wouldn't line up so I had to tear it back down and reassemble correctly. I had to pry out all the nylon buttons and reuse them. Hopefully they'll stay put. Some pics and a followup video. The knock gauge is fine now. Surprised that it is so sensitive that it'd pick up the tap from the rocker shaft being broken.

TA heavy duty rocker shafts, TA rocker shaft studs, rocker shaft supports from Earl Brown

That's amazing you got the buttons out without breaking any of them.

I've broke one or two when they're unused installing them on the first round.