In the early years Mercruiser used a Ford Engine for the 215, 225, 233, and 255 product family, however they formed a relationship with General Motors that was exclusive in the Mercrusier product line up until 2012 when the 8.1L engine was discontinued and Mercruiser decided to re-enter the engine manufacturing arena by introducing their Marine Intent 8.2L Big Block Engine.With this Mercruiser was once again producing a Marine Engine as they had done with the 4 Cylinder 3.7L models several years earlier.Today Mercruiser is not only producing the 8.2L Marine Engine but also the recently developed and released the 4.5L V6 engine which will be used to replace the 4.3L V6 that is being discontinued by General Motors, as well as the current 5.0L V8 engines.Today, Mercruiser Inboard Model offering for Small V8 engines consists of the 5.7L Small V8, the 6.2L Small V8 which is basically the same 5.7L engine purchased from General Motors but being stroked out to 6.2L.
Mercruiser Remanufacturing offers the 357 Cu In version of Small V8 Motors. Rather by using our convenient and fast Mercruiser Small V8 Inboard Engine Parts Lookup Catalogs you can shop and buy the parts you need from the convenience of your own home. A downloadable MerCruiser repair manual is a digitally delivered handbook that provides step-by-step maintenance, troubleshooting and repair procedures. A MerCruiser repair manual covers every aspect of repair, from basic maintenance to complete engine overhaul. Inspect the drive unit anodes and replace if 50 percent eroded. For Sea Ray Mercruiser Inboard Serial Number 0L010029 UpVI Engines Sterndrive (MCM) Models: MCM 454 Mag MPI (Serial Number 0L010029 Up), MCM 502 Mag MPI (Serial Number 0L017000 Up). Inboard (MIE) Models: MIE 454 Mag MPI Horizon (Serial Number 0L002200 Up), MIE 8.2L MPI (Serial Number 0L002450 Up). L-29 Engines - Sterndrive (MCM) Model: MCM 7.4L MPI (Serial Number 0L010003 Up). Inboard (MIE) Model: MIE 7.4L MPI (Serial Number 0L002006 Up). Models Covered In This Manual:MODEL SERIAL NUMBER MCM 3.0L OC856451 And Above, MCM 3.0L 3.0LX OC868143 And Above. MCM 120-260 Stern Drive Units Ratio 1.98:1 - Serial Numbers - 4893635 to 6237860 1.84:1 - Serial Numbers - 4893835 to 6225576 1.65:1 - Serial Numbers - 4890460 to 6268064 1.50:1 - Serial Numbers - 4898730 to 6229157 1978 1979 1980 1981 1982. For Sea Ray Mercruiser Inboard Serial Number OM300000 AndExact model application: Models Application: Sterndrive (MCM) starting with serial number OM300000 and above, 5.0L MPI Alpha and Bravo, 350 MAG MPI Alpha and Bravo, 350 MAG MPI Alpha and Bravo Horizon, MX 6.2 MPI, MX 6.2 MPI Horizon, Inboard and Dow Sports (MIE) starting with serial number OM310000, 350 MAG MPI Inboard, 350 MAG MPI Horizon Inboard, MX 6.2 MPI Inboard, MX 6.2 MPI Horizon Inboard and 350 MAG MPI Tow Sports. Some Standard Bravo Transom Assemblies could have been converted to High Performance Transom Assemblies by use of a High Performance Gimbal Ring Kit (822374A2). ![]() Bravo Two, Bravo Two X, Bravo Two X Diesel, Bravo Three, Bravo Three X, Bravo Three X Diesel (Serial Number 0M198373 and Above). Transom Standard (Serial Number 0W173658 and Above) Transom High Performance(Serial Number 0W150260 and Above). Inboard (MIE) Models: D2.8L D-Tronic (Serial Number 0K000001 and Above), D4.2L D-Tronic (Serial Number 0K000001 and Above). Please read the GENERAL INFORMATION section to familiarize yourself with basic information concerning the inboard engine or stern drive. Read and refer to the other sections in this manual for information regarding proper inspection and service procedures. If a modification has been made since then, differences may exist between the content of these manuals and the actual inboard or stern drive. 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 a service manual. Improper repair may result in injury to the mechanic and may render the engine unsafe for the boat operator and passengers. However, individual operating habits and personal maintenance preferences can have an impact on the suggested intervals. In consideration of these factors, Mercury MerCruiser has adjusted some maintenance intervals and the corresponding tasks to be performed. In some cases, this may allow for more individual tasks in a single visit to the servicing dealer. Therefore, it is very important that the boat owner and the servicing dealer discuss the current Maintenance Schedule and develop appropriate maintenance intervals to coincide with the individual operating habits, the environment and the maintenance requirements. If operating in salt, brackish or polluted waters, flush the cooling system after each use. Check the drive unit oil level, the trim pump oil level and the power steering pump fluid level.
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