This is the COMPLETE Official Service Repair Manual for the Mercury Mercruiser #10 MARINE ENGINES GM 4 Cylinder. Production model years 1985 1986 1987 1988 1989. It Covers complete tear down and rebuild, pictures and part diagrams, torque specs, maintenance, troubleshooting, etc. You name it and its in here. This Manual contains everything you will need to repair, maintain, rebuild, refurbish or restore your Mercury Mercruiser Marine Engines. All diagnostic and repair procedures are covered. The manual has detailed illustrations, diagrams, wiring schematics and specifications as well as step-by-step instructions. All pages are printable, so run off what you need and take it with you into the garage or workshop. These manuals are your number one source for repair and service information. They are specifically written for the do-it-yourselfer as well as the experienced mechanic. Using this repair manual is an inexpensive way to keep your Mercury Mercruiser Marine Engines working properly. Each manual provides step-by-step instructions based on the complete disassembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. 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 & Exhaust A - Seawater Cooled Models B - Closed Cooled Models C - Exhaust Manifolds/Elbows SECTION 7 - Power Steering A - Power Steering ______________________________ ** Model Specification: Mercury Mercruiser #10 MARINE ENGINES GM 4 Cylinder ** Model Year: 1985-1989 ** Language: English ** Total Pages: 308 ** File Format: PDF ** Requirements: Adobe PDF Reader ** ZOOM IN/OUT: YES ** INSTANT DELIVERY: YES ** Specifications: FULLY PRINTABLE & BOOKMARKED ** Compatible: All Versions of Windows & Mac, APP ISO, Iphone, Ipod, Android etc =========== This QUALITY manual is 100 percents COMPLETE and INTACT, no MISSING/CORRUPT pages/sections to freak you out! This PDF file is Bookmarked and SEARCHABLE to make what you need easy to find. Detailed illustrations, exploded diagrams, drawings and photos guide you through every service repair procedure. This manual can be viewed on any computer, as well as zoomed and printed. Complete download comes in PDF format which can work under all PC based Windows operating system and Mac also. It saves to your hard-drive and can be burned to CD-ROM. INSTANT DOWNLOAD MEANS THERE WILL BE NO SHIPPING COSTS OR WAITING FOR A PAPER OR CD MANUAL TO ARRIVE IN THE MAIL. YOU WILL RECEIVE THIS MANUAL TODAY VIA INSTANT DOWNLOAD ON COMPLETION OF PAYMENT VIA OUR SECURE PAYMENT PROCESSOR. WE ACCEPT ALL MAJOR CREDIT/DEBIT CARDS AND PAYPAL. YOU CAN DO THE REPAIRS YOURSELF AND SAVE MONEY $$ BUY FROM US AND I GUARANTEE YOU'LL BE A SATISFIED CUSTOMER AND CONTACT US IF YOU HAVE ANY QUESTIONS. Looking for some other Service Repair Manual, please check: