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Replaced lifters the other day. During installation, plastic bits fell into head. I got as much out as possible, not sure if I removed all of it.

5 days have gone by and now I have a major tick out of no where. Pulled valve cover and far back lobe is scored.

Pulled lifter and rocker, rocker is fine, roller on it moves side to side. Lifter has marks on it.

Did this happen because of the plastic potentially? I might add that the old lifters I removed, had no movement when I tried to compress them. The new ones did not either. Is this bad?

Attached are a couple pics. 1. Is my cam ruined with that scoring?
2. Is my rocker bad if it has that slight play in the roller?
3. Did the plastic ruin my engine?
4. What should I do next?


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