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

TROUBLESHOOTING
SERVICE MANUAL NUMBER 30
Poor Fuel Economy
Cause
Special Information
Fuel leaks
Prolonged idling; slow acceleration; failure
to cut back on throttle once boat is on
plane; boat overloaded; uneven weight
distribution
Operator habits
Bent, damaged, or wrong propeller. Water
test boat for proper operating rpm at wide
open throttle
Engine laboring
Clogged flame arrestor
Engine compartment sealed too tight
Boat bottom
Not enough air for engine to run properly
Dirty (marine growth), hook, rocker
Improper fuel
Engine running too cold or too hot
Plugged or restricted exhaust
Engine
Low compression
Engine Runs Poorly at Idle
Symptoms
Cause
Engine surges
Low top speed or lack of power
Poor cold engine operation
Engine stalls
Refer to Fuel Injection Troubleshooting
Refer to Engine Starts Hard
Hard starting
INDEX
Page 1C-8
90-863161   SEPTEMBER 2000
Product Specification
CategoriesMercury MerCruiser Manuals
Tags
Model Year1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
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CopyrightAttribution Non-commercial
(2 votes, average: 4 out of 4)
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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

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