Mercury MerCruiser GM 4 Cylinder 181 cid 3.0L Marine Engines Service Manual Number 26

It is important to note, during any maintenance procedure replacement fasteners must have
the same measurements and strength as those removed. Numbers on the heads of the met-
ric bolts and on the surfaces of metric nuts indicate their strength. American bolts use radial
lines for  this  purpose, while  most American  nuts do  not have  strength markings.  Mis-
matched or incorrect fasteners can result in damage or  malfunction, or possibly personal
injury. Therefore, fasteners removed should be saved for reuse in the same locations when-
ever possible. Where the fasteners are not satisfactory for re-use, care should be taken to
select a replacement that matches the original.
We reserve the right to make changes to this manual without prior notification.
Refer to dealer service bulletins for other pertinent information concerning the products de-
scribed in this manual.
Engine Mechanical Components
Many of the engine mechanical components are designed for marine applications. Unlike
automotive engines,  marine engines  are subjected  to  extended periods  of heavy  load
and wide-open-throttle operation and, therefore, require heavy-duty components. Special
marine engine parts have design and  manufacturing specifications which are required to
provide long life and dependable performance. Marine  engine parts also must be able to
resist the corrosive action of salt or brackish water that will rust or corrode standard automo-
tive parts within a short period of time.
Failure to use recommended Quicksilver service replacement parts can result in poor en-
gine performance  and/or durability, rapid  corrosion of parts  subjected to  salt water and
possibly complete failure of the engine.
Use of parts other than recommended service replacement parts, will void the warranty on
those parts which are damaged as a result of the use of other than recommended replace-
ment parts.
Replacement Parts
WARNING
Electrical, ignition and fuel system components on MerCruiser Engines and Stern
Drives are  designed and  manufactured to  comply with U.S.  Coast Guard  Rules
and Regulations to minimize risks of fire or explosion.
Use of replacement electrical,  ignition or fuel system components,  which do not
comply to these rules and regulations, could result in a fire or explosion hazard and
should be avoided.
When servicing the electrical, ignition and fuel systems, it is extremely important
that all components are properly installed and tightened. If not, any electrical or ig-
nition component opening would permit sparks to ignite fuel vapors from fuel sys-
tem leaks, if they existed.
Models Covered in This Manual
Model
Serial Number
Model Year
MCM 3.0L Alpha
OL010042 and Above
1998 -
Index
Page ii
90-861329--1   MARCH 1999
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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(6 votes, average: 5 out of 5)
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Mercury MerCruiser GM 4 Cylinder 181 cid 3.0L Marine Engines Service Manual Number 26 SKU UPC Model
MARIUZAN GONCALVES on Jun 09, 2018. Good

Thanks for sharing this material. Helps a lot after suffering with bad mechanics. spend too much money and nothing very good


jerry l clark on Jun 05, 2018.

great manual, makes impossible jobs possible. without a manual you can not do the job, a must have.


Terence Maulhardt on Apr 25, 2018.

Great resource. Excellent information provided.


Dean Masman on Apr 22, 2018. Need help to

Need help to install automate choke


Vinny on Sep 01, 2014. Tech

Need help to instal automate choke


Jeff on Mar 06, 2013.



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