Number 26
Printed in U.S.A.
90-861329--1 MARCH 1999
1999, Mercury Marine
MARINE ENGINES
GM 4 Cylinder 181 cid (3.0L)
MerCruiser # 26 GM 4 Cylinder 181 cid (3.0L)
90-861329--1
MerCruiser # 26 GM 4 Cylinder 181 cid (3.0L)
90-861329--1
90-861329--1 MARCH 1999
Page i
Notice
Throughout this publication, “Dangers”, “Warnings” and “Cautions” (accompanied by the In-
ternational HAZARD Symbol
) are used to alert the mechanic to special instructions con-
cerning a particular service or operation that may be hazardous if performed incorrectly or
carelessly. OBSERVE THEM CAREFULLY!
These “Safety Alerts” alone cannot eliminate the hazards that they signal. Strict compliance
to these special instructions when performing the service, plus “Common Sense” operation,
are major accident prevention measures.
DANGER
DANGER - Immediate hazards which WILL result in severe personal injury or death.
WARNING
WARNING - Hazards or unsafe practices which COULD result in severe personal in-
jury or death.
CAUTION
Hazards or unsafe practices which could result in minor personal injury or product
or property damage.
Notice to Users of This Manual
This service manual has been written and published by the Service Department of Mercury
Marine to aid our dealers’ mechanics and company service personnel when servicing the
products described herein.
It is assumed that these personnel are familiar with the servicing procedures of these prod-
ucts, or like or similar products manufactured and marketed by Mercury Marine, that they
have been trained in the recommended servicing procedures of these products which in-
cludes the use of mechanics’ common hand tools and the special Mercury Marine or recom-
mended tools from other suppliers.
We could not possibly know of and advise the service trade of all conceivable procedures
by which a service might be performed and of the possible hazards and/or results of each
method. We have not undertaken any such wide evaluation. Therefore, anyone who uses
a service procedure and/or tool, which