Download Complete Service Repair Manual for 1985-1989 Mercury Mercruiser MARINE ENGINES GM 4-Cylinder.

This Factory Service Repair Manual offers all the service and repair information about 1985-1989 Mercury Mercruiser MARINE ENGINES GM 4-Cylinder. The information on this manual covered everything you need to know when you want to repair or service 1985-1989 Mercury Mercruiser MARINE ENGINES GM 4-Cylinder.

Models Covered:

Models and Serial Number
MCM 120 MR-6853914 to 0A492055
MCM 120 Alpha I-0A492056 to 0B531853
MCM 2.5L-0C856450 and Above
MCM 140 MR-6852270 to 0A484072
MCM 140 Alpha I-0A484073 to 0B450800
MCM 3.0L-0C856450 and Above
Sea Ray 3.0L-0B787205 to B917530

NOTICE:
MCM 2.5L MCM3.0L – Same as MCM 120.
Sea Ray 3.0L-Same as MCM 140 (Later Models are rated at 130 HP and have 9.2:1 Compression ratio.)

TABLE OF CONTENTS:

SECTION 1 – Important Information
A – Important Information
B – Maintenance
C – Troubleshooting

SECTION 2 – Removal & Installation
A – 4 Cyl. 153-181 CID (2.5-3.0L)
B – Driveshaft Extension Models

SECTION 3 – Engine Mechanical
A – G.M. In-Line

SECTION 4 – Electrical Systems
A – Starting System
B – Ignition System
C – Charging Systems
D – Instrumentation
E – Electrical Kits
F – Wiring Diagrams

SECTION 5 – Fuel Systems
A – Fuel Delivery System
B – Fuel Pump
C – MerCarb 2-Barrel

SECTION 6 – Cooling and Exhaust
A – Seawater Cooled Models
B – Closed Cooled Models
C – Exhaust Manifolds/Elbows

SECTION 7 – Power Steering
A – Power Steering

This manual can be used by anyone from a first time owner/amateur to a professional technician.Even the most novice mechanic can also easily follow the step-by-step guides which are made simple by the illustrations and drawings.Keep this manual handy and use it often. Performing routine, preventive maintenance will save you time & money by helping to prevent premature failure and unnecessary repairs.

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File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English