Mercruiser/GM 454, 502 c.i. Marine Engine Service Manual (Gen V & VI)

Covers: Mercruiser/GM 7.4L, 8.2L V8 Gen. V and VI Marine Engines

• See full model compatibility list at the bottom of this page

Pages: 930
Format: PDF
File size: 16mb
Compatibility: Windows/Mac/Tablet
Notes: Bookmarked, searchable, printable. Instant digital download only.

This PDF service manual contains all the necessary instructions for any repair your MerCruiser 7.4L (454 CID) and 8.2L (502 CID) V8 Gen 5 and 6 marine engine may require from top to bottom. This is the same professional-grade manual technicians use to diagnose and repair your marine engine in downloadable format. Whether it’s routine maintenance, such as tune-ups and fuel system service, or more extensive repairs involving engine and transmission disassembly, this 900+ page manual provides the most accurate information to perform the job.

Topics:

General Information

• Maintenance
• Fluids and Capacities
• Troubleshooting

Removal and Installation

• MCM Models – Bravo and Blackhawk Drives
• MCM Models – Bravo and Blackhawk Drives with Driveshaft Extension
• MIE Models – Velvet Drive Transmission
• MIE Models – Hurth Transmission

454 cid (7.4L) / 502 cid (8.2L) Engine

• Engine Specifications
• Torque Specifications
• Overview
• Engine Mounts
• Rocker Arm
• Pushrod
• Valve Adjustment
• Hydraulic Lifters
• Valve Stem Seal and Spring
• Cylinder Head and Valve Conditioning
• Dipstick
• Oil Pump and Pan
• Damper
• Front Cover
• Oil Seals
• Flywheel
• Main Bearings
• Connecting Rods and Pistons
• Crankshaft
• Timing Chain and Sprocket
• Camshaft and Bearings
• Cylinder Block
• Compression Test
• Oil Filter Bypass Valve and Adaptor

Electrical System

• Starting System
• Ignition System
• Charging System
• Instrumentation
• Electrical Kits
• Wiring Diagram

Fuel System

• Fuel Delivery Systems and Fuel Pumps
• Weber 4 Barrel Carburetor
• Electronic Fuel Injection (Throttle Body and Multi-Port Injection)

Cooling System

• Seawater Cooled Models
• Closed Cooled Models

Exhaust System

• General
• Manifolds and Elbows
• Risers
• Collectors

Drives

• Velvet Drive In-Line Transmission
• Velvet Drive V-Drive Transmission
• Hurth Down Angle Transmission
• Drive Shaft / Propeller Shaft Models

Power Steering

Full model compatibility list: