1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 104Get this manual

1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 104

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377 CID6.2L ENGINES

a PRE-IGNITION CAUSESIgnited By Hot DepositsRegular Ignition SparkIgnites Remaining FuelFlame Front Collide

1 Hot spots in the combustion chamber from glo