1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 111Get this manual

1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 111

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377 CID6.2L ENGINES

aSet ScrewAdjusting NutPush RodBox End WrenchTorque Wrench

5 Adjust lifters by tightening adjustment nut an additional three Quarter turn (270 degrees)No