Mercury MerCruiser 496 CID 8.1L Gasoline Marine Engines Service Manual Number 30

IGNITION SYSTEM

SERVICE MANUAL NUMBER 30

REPLACING

Clean the plug seating area on the cylinder heads and spark plugs.

IMPORTANT: When adjusting gap, DO NOT bend center electrode.

Adjust spark plug gap with a round feeler gauge. Bend side electrode to adjust gap.

75084

a - Seating Area

b - Gap

IMPORTANT: Spark plugs should be torqued to the amount specified. If they cannot

be torqued, the spark plugs should be hand tightened until the plug contacts the cyl-

inder head. Then, using an appropriate wrench and socket, slightly rotate (approxi-

mately 1/8 or less of a full turn) to create a seal and secure the plug.

Install spark plugs and torque to specifications.

Install spark plug wires in proper order.

INDEX

Page 4B-4

90-863161 SEPTEMBER 2000

Product Specification

Categories	Mercury MerCruiser Manuals
Tags	Mercury MerCruiser 496 CID
Model Year	1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Download File	Please Enter the Security Characters Shown Below. Letters are Case Sensitive. Your download link will appear upon completing this step. - 355 pages
Document File Type	PDF
Copyright	Attribution Non-commercial

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Mercury MerCruiser 496 CID 8.1L Gasoline Marine Engines Service Manual Number 30 SKU UPC Model

Sven-Erik Walin on Jun 10, 2018. crankcase ventilation

How many openings for crankcaseventilation is there on
Merc 496 HO ?

John fox on Apr 11, 2018. Manual

Great down load . it was all there an more