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

SERVICE MANUAL NUMBER 30

TROUBLESHOOTING

Valve Cover Area

Location

Possible Causes

Rocker arm striking valve cover

Rocker arm out of adjustment

Worn rocker arm

Valve cover area, timed to 1/2 engine

speed, noise could be confined to one

cylinder or may be found in any multitude

of cylinders

Bent push rod

Collapsed lifter

Cylinder Area

Location

Possible Causes

Sticking valve

Carbon build-up

Connecting rod installed wrong

Bent connecting rod

Piston

Cylinder area, may be confined to one

cylinder or found in more than one

cylinder, timed to engine speed

Piston rings

Piston pin

Cylinder worn

INDEX

90-863161 SEPTEMBER 2000

Page 1C-11

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