Hi old Mopar engine guy now into Police cars have about 11 now. Of course a few are having problems mostly flat cams. My question is there are wear marks on both rocker shafts that show the rocker arms moving on the shaft about .25 of an inch. Is this normal? Is there a fix? are they losing lift with this occurring?
3 engines with flat cams all cylinder 4 or 6 dropped/bent pushrods.
Anyone have any concrete answers to help me out?
New to working on the Gen 3.

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