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

SERVICE MANUAL NUMBER 30

MANIFOLDS, ELBOWS AND RISERS

Inspect all sealing surfaces carefully. Machined surfaces must be clean and free of all

marks and deep scratches or exhaust leaks may result.

77632

77633

a - Sealing Surfaces

b - Elbow

c - Manifold

Check the flatness of all gasket surfaces. Maximum overall warp is .003 in. (0.07 mm),

with not more than a .001 in. (0.02 mm) difference within 1 in. (25 mm).

NOTE: Maximum material that can be removed is .010 in. (0.25 mm) to flatten a gasket sur-

face.

Look at the condition of the metal around the exhaust outlet in the casting. Inspect for

damaged metal caused by salt water or exhaust gas corrosion in the manifold, elbow

and riser, if equipped. Replace all damaged parts.

INDEX

90-863161

SEPTEMBER 2000

Page 7A-5

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
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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