Mercruiser Marine Engine No. 17 GM V-8 305 CID (5.0L)/350 CID (5.7L) service manual

4.6starstarstarstarstar_half(5)
★ BEST PRICE
visibility Preview Available
Mercury Mercruiser Marine Engine No. 17 GM V-8 305 CID (5.0L)/350 CID (5.7L) service manual manual page preview - page 1 of 967

Sample pages from the Mercruiser Marine Engine No. 17 GM V-8 305 CID (5.0L)/350 CID (5.7L) service manual manual

Mercury Mercruiser Marine Engine No. 17 GM V-8 305 CID (5.0L)/350 CID (5.7L) service manual manual preview page 1 - thumbnail
Mercury Mercruiser Marine Engine No. 17 GM V-8 305 CID (5.0L)/350 CID (5.7L) service manual manual preview page 4 - thumbnail
Mercury Mercruiser Marine Engine No. 17 GM V-8 305 CID (5.0L)/350 CID (5.7L) service manual manual preview page 5 - thumbnail
info_outline Click thumbnails to preview different pages
$14.70 (incl. VAT) Original OEM Factory Manuals & Data Instant Download / No Shipping Fees
OR BUY NOW
verified_user
Lifetime Access
Re-download anytime
flash_on
Instant Download
Get it immediately
lock
Secure Payment
PayPal
Technical Safety Notice
keyboard_arrow_down

This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Mercury Models Covered & Key Technical Specifications

17 GM V-8 305 CID (5.0L)/350 CID (5.7L / Mercury Marine

Mercruiser Marine Engine 17 GM V-8 305 CID (5.0L): Year Range: 1997-2001

Mercruiser Marine Engine 17 GM V-8 350 CID (5.7L): Year Range: 1997-2002

MCM Alpha

Model, Serial Number And Model Year

5.0LÂOD832472 - OF601000¨1993 - 1995

5.0LXOD831003 - OF601000¨1993 - 1995

5.7L (4 Barrel)¨OD830700 - OF601000¨1993 - 1995

5.7L (2 Barrel)¨OF601000 and Above¨1996 Thru 1997

5.7LX¨OF601957 and Above¨1996 Thru 1997

5.7L EFI¨OF286830 and Above¨1996 Thru 1997

5.7LX EFI¨OF752400 and Above¨1996 Thru 1997

350 Magnum¨OD830982 and Above¨1996 Thru 1997

350 Magnum EFI Gen+¨OF800500 and Above¨1996 Thru 1997

MCM Bravo

Model ,Serial Number And Model Year

5.0LOD833077 - OF6014641993 - 1995

5.7L (4 Barrel)¨OD831826 - OF605335¨1993 - 1995

5.7L (2 Barrel)¨OF605336 and Above¨1996 Thru 1997

5.7LX¨OF601645 and Above¨1996 Thru 1997

5.7L EFI¨OF225560 and Above¨1996 Thru 1997

5.7LX EFI¨OF752408 and Above¨1996 Thru 1997

350 Magnum¨OD800300 and Above¨1996 Thru 1997

350 Magnum EFI Gen+¨OF800500 and Above¨1996 Thru 1997

350 Magnum EFI/MP¨OF289431 - OF601999¨1995

350 Magnum MPI Gen+¨OF602000 and Above¨1996 Thru 1997

MIE Ski

  • Model A

  • Model B

  • Model C

5.7L Competition (4 Barrel) ¨OD840220 - OF775199 ¨1993 - 1995

5.7L Competition (2 Barrel) ¨OF775200 and Above ¨1996 Thru 1997

350 Magnum Tournanment Ski ¨OD840100 and Above ¨1993 Thru 1997

350 Magnum EFI Tournament Ski ¨OF225157 - OK000000 ¨1994 - 1996

350 Magnum EFI Gen+Tournament Ski¨OK040006 and Above¨1997

350 Magnum EFI/MP Tournament Ski¨OF350583 - OF745536 ¨1995

350 Magnum MPI Tournament Ski ¨OF745537 - OK000000 ¨1996

350 Magnum MPI Gen+Tournament Ski (Black Scorpion) ¨OF800000 and Above¨1996

MIE Inboard

Model ,Serial Number And Model Year

5.7L¨ OD84000 and Above ¨1993 Thru 1997

5.7L EFI Gen+ ¨OK040300 and Above 1997

Technical Specifications
keyboard_arrow_down
Document Number / Seller:
30629 / Joseph Henry
File Size:
18.12 MB
File Type:
PDF
Language:
English
Pages:
967
Printable:
Yes
Category:
Inboard-Engines-Sterndrives
Last updated / verified
Apr 30, 2026

Mercury Manual Features & Content Preview

MerCruiser GM V-8 5.0L (305 CID) & 5.7L (350 CID) Marine Engine Service Manual (Book 1 of 2, Part No. 90-823225--1)

This service manual (Book 1 of 2) is a comprehensive technical reference for MerCruiser GM V-8 marine engines within the 5.0L (305 CID) and 5.7L (350 CID) families. Covering Sections 1 through 4, it provides essential data on general information, engine removal and installation, mechanical repairs, and electrical systems. Designed for marine technicians and experienced DIYers, the manual relies on precise model and serial applicability tables, numeric tune-up baselines, and complete wiring diagrams rather than generic overviews.

Model & Serial Number Coverage

  • MCM Alpha: 5.0L (OD832472–OF601000); 5.0LX (OD831003–OF601000) for model years 1993–1995
  • MCM Alpha: 5.7L 4-bbl (OD830700–OF601000); 5.7L 2-bbl (OF601000 and above)
  • Alpha EFI / LX EFI: Includes specific serial breakpoints such as OF286830+, OF752400+, and OF601957+
  • MCM Bravo: 5.0L (OD833077–OF601464) for model years 1993–1995, plus 5.7L, EFI, and LX EFI models with specific serial thresholds
  • 350 Magnum / 350 Magnum EFI: Variants listed with defined "and above" boundaries (including Gen+ models)
  • Ski / Inboard: Enumerated with dedicated serial and year ranges

Manual Contents (Sections 1–4)

The manual is organized into four primary sections:

  1. Important Information: General specifications, maintenance routines, and practical reference data.
  2. Removal & Installation: Routing and procedures for Alpha and Bravo variants, plus inboard transmission pairings.
  3. Engine: Comprehensive mechanical data for the 5.0L (305) and 5.7L (350) blocks.
  4. Electrical Systems: Detailed breakdowns of starting, ignition, charging, instrumentation, and electrical kits.

Key Engine Specifications & Tune-Up Data

The tune-up tables consolidate critical numeric baselines for both the 305 and 350 variants. This includes idle ranges, W.O.T. RPM bands by model, firing order (LH/RH rotation mapping), spark plug families and gaps, base timing references, and thermostat ratings.

Specification Category 5.0L (305 CID) 5.7L (350 CID)
Bore × Stroke 3.74 × 3.48 in (95 × 88.4 mm) 4.00 × 3.48 in (101.6 × 88.4 mm)
Compression Pressure 150 psi (1034 kPa) 150 psi (1034 kPa)
Oil Pressure (@ 2000 RPM) 30–60 psi (207–414 kPa) 30–60 psi (207–414 kPa)
Fuel Pump Pressure (@ 1800 RPM) 3–7 psi (21–48 kPa) 3–7 psi (21–48 kPa)
Crankcase Oil (with filter) 5.5 qt (5.2 L) 5.5 qt (5.2 L)
Electrical System 12V Negative (–) Ground 12V Negative (–) Ground

Fluid Capacities (Cooling & Drivetrain)

In addition to crankcase oil, the manual lists exact volumes for seawater and closed-cooling systems, noting separate entries based on exhaust-manifold flow routing. It also provides transmission capacities for common inboard pairings, including Velvet Drive ratios and Hurth down-angle setups, logically organized in quick-reference tables.

Comprehensive Electrical & Wiring Diagrams

The Electrical Systems section is heavily detailed. Instead of a single blended chapter, it is clearly partitioned into distinct sub-sections: Starting, Ignition, Charging, Instrumentation, and Electrical Kits. Most importantly, it includes a dedicated section exclusively for Wiring Diagrams, ensuring users have the exact schematics needed for accurate troubleshooting and system routing.

Manual FAQ, Purchase & Download Details

**Which GM V-8 marine configurations are supported in the Mercruiser archive?** keyboard_arrow_down

A: This comprehensive service manual (#17) provides exhaustive mechanical documentation for Mercruiser 305 CID (5.0L) and 350 CID (5.7L) engine model variants. It specifically addresses the diagnostic requirements for the 1993–2002 production range, ensuring all technical values for MCM Alpha, MCM Bravo, and MIE Ski (including Black Scorpion) architectures are fully recorded across 18.12 MB of data.

**How do I perform effective engine break-in and powerhead servicing?** keyboard_arrow_down

A: Identify the exact engine break-in procedures and valve adjustment specifications within the specialized powerhead sections to isolate mechanical failures. The manual provides a systematic approach for cylinder head, piston, and crankshaft service, enabling technicians to identify root causes with factory-certified precision for the 5.0L and 5.7L V-8 series.

**Determine the necessary steps for maintaining the lower unit and gearcase?** keyboard_arrow_down

A: Identify the precise instructions for gearcase disassembly and propeller shaft servicing within the specialized technical groups to maintain propulsion reliability. The documentation guides technicians through the complete diagnostics of the lower unit reassembly and trim/tilt hydraulic systems, providing authoritative instructions for troubleshooting drivetrain components across the Mercruiser lineup.

**Identify the electrical system diagnostics and wiring schematic locations?** keyboard_arrow_down

A: Tool-ID "Mercruiser Electrical Reference" is essential for troubleshooting the charging system, ignition timing, and integrated electronics as detailed in Section 3. The technical data provides expert insights into battery information and electrical wiring diagrams, facilitating more effective fault isolation within the marine engine's complex electrical network.

**What are the key technical specifications for fuel and cooling overhaul?** keyboard_arrow_down

A: Tool-ID "Henry Technical Reference" must be used to verify fuel pump service standards, carburetor adjustments, and cooling system flushing protocols found in the factory-style guide. The handbook encompasses the entire service journey, providing critical guidelines for thermostat replacement and water pump maintenance to extend equipment life and ensure safe operation for the Mercruiser marine fleet.

Customer Reviews

Read what our customers say about this Mercury Inboard-Engines-Sterndrives manual and share your own experience.