1985-1989 MerCruiser 4 Cylinder Engine Service Manual
1985-1989 MerCruiser Manual #8 Mercury Marine 4 Cylinder Engines
MODELS COVERED IN THIS MANUAL:
MCM 170 MR Serial Numbers / 6916779 to 0A475151
MCM 170 Alpha One / Serial Numbers 0A475152 to 0B434940
MCM 165 Alpha One / Serial Numbers 0B424941 to 0B774251
MCM 3.7L Alpha One / Serial Numbers0B774252 and Above
MCM 190 MR / Serial Numbers 6917368 to 0A475551
MCM 190 Alpha One / Serial Numbers 0A475552 to 0B436390
MCM 180 Alpha One / Serial Numbers 0B436391 to 0B775248
MCM 3.7 Liter LX Alpha One / Serial Numbers 0B775249 and Above.
This 1985 1986 1987 1988 1989 INSTANT DOWNLOAD MerCruiser repair manual contains an introductory description on and procedures for the inspection, service and overhaul of its main components. General knowledge information is not included. Please read the GENERAL INFORMATION section to familiarize yourself with basic information concerning the engine. Read and refer to the other sections in this manual for information regarding proper inspection and service procedures.
Illustrations in this manual are used to show the basic principles of operation and work procedures.
This manual is intended for use by technicians who already possess the basic knowledge and skills to service MerCruiser motors and components. Persons without such knowledge and skills should attempt with caution to service any component or engine by relying on this manual only. Never attempt to perform any work with out the assistance of this service manual.
Apprentice mechanics or do-it-yourself mechanics that don’t have the proper tools and equipment may or may not be able to properly perform the services described in this manual. Improper repair may result in injury to the mechanic and may render the engine unsafe for the boat operator and passengers. Never attempt to work on your MerCruiser engine without a manual. Important safety precautions, service information and other data may be included.
This manual details every aspect of repair, from basic maintenance to complete engine overhaul.
QUESTIONS AND ANSWERS
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A. Once the manual has been downloaded it appears exactly the same as a repair manual you’d buy in stores. It includes every aspect of repair, step-by-step repair procedures, pictures, illustrations, diagrams, troubleshooting and specifications.
Q. Is the repair manual model and year specific?
A. YES! This is not a generic manual.
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A. NO! This manual is 100 percent safe to download!
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