Probably about time-rocker adjustment

gtgto said

I got a lifter out. I tried to push down on it but it

Got a lifter out and tried to push on the plunger with a pushrod and it didn't move. I shook it and feel a rattle and oil is splattering out of it. Here are pics. View attachment 1715751104View attachment 1715751105View attachment 1715751106

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The your question has been answered. If you're hearing a rattle when you shake it, that's the oil metering plunger. You have oil metering solid lifters. A hydraulic lifter will not rattle, since it has a preload spring and different internals. Nice diagnostic work!