Mercury Mercruiser Marine Engines GM 4 Cylinder MCM 3.0L MCM 3.0L /3.0LX * Factory Service / Repair/ Workshop Manual Instant Download! This manual contains maintenance and repair procedure for the Mercury Mercruiser Marine Engines GM 4 Cylinder MCM 3.0L MCM 3.0L /3.0LX. With this manual, you may maintain, service, diagnose and repair your own. With step by step instruction & highly detailed exploded pictures & diagrams to show you how to complete the required job correctly & efficiently. All repair procedures are covered. It's the same type of Manual that your local Dealer/Mechanic would use. This manual covers the following models: MCM 3.0L (Serial Number OC856451 And Above) MCM 3.0L /3.0LX (Serial Number OC868143 And Above) Service Manual outline: SECTION 1 - Important Information A - General Information B - Maintenance C - Troubleshooting SECTION 2 - Removal and Installation A - 4 Cylinder 3.0L / 3.0 LX (181 C.I.D.) SECTION 3 - Engine A - G.M. In-Line SECTION 4 - Electrical Systems A - Starting System B - Ignition System C - Charging System D - Instrumentation E - Wiring Diagrams SECTION 5 - Fuel System A -Fuel Pump B - 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 Instant Download means there is NO shipping costs or waiting for a CD or paper 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/paypal. All pages are printable. File Format: PDF Compatible: All Versions of Windows & Mac Language: English Requirements: Adobe PDF Reader & WinZip Looking for some other Service manual, please check: Thank you ! have a great day there !