How do hydraulic flat tappet lifters fail?

RustyRatRod said

I know.....there's just so MUCH information to sort through it can be overwhelming. How did you prep the lifter bores?

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With a gloved hand, smeared some of the same oil that the lifters had been soaking in. I think I might've mentioned earlier that I used assembly lube on the lifters, but looking back, I don't think that was the case.