Mercury Mercruiser Marine Engines GM V6 262 CID (4.3L) 1998- Service Repair Manual

Mercury Mercruiser Marine Engines GM V6 262 CID (4.3L) 1998- Service Repair Manual

Loaded with illustrations, instructions, photos, and diagrams, complete to service and repair your Mercury. Read and print pages, or copy the entire manual to your hard drive.

790  Pages

MODEL YEAR:

1998-

MODELS COVER:

GM V6 –

262 CID (4.3L)           SN: 0L125850 –

262 CID (4.3H)           SN: 0L110850 –

262 CID (4.3L EFI)     SN 0L110850 – 0M299999

MANUAL COVERS:

Section 1 – Important Information

A – General Information

B – Maintenance

C – Troubleshooting

Section 2 – Removal and Installation

A – MCM Models

Section 3 – Engine

A – 262 CID 4.3L Engines

Section 4 – Electrical Systems

A – Starting System

B – Ignition System

C – Charging System

D – Instrumentation

E – Wiring Diagrams

Section 5 – Fuel Systems

A – Fuel Delivery System For Carbureted Engines

B – Mercarb  2 Barrel Carburetor

C – Weber 4 Barrel Carburetor

D – SAV1 Emission Fuel System With Weber Carburetor

E – Fuel Delivery System For Electronic Fuel Injection

F – Fuel Injection Descriptions And System Operation

G – Fuel Injection Disassembly And Reassembly

H – Fuel Injection System Troubleshooting

I – Diagnostics

Section 6 – Cooling System

A – Seawater Cooled Models

B – Closed Cooled Models

Section 7 – Exhaust System

A – General

B – Manifold, Elbows, Risers

C – Collectors

Section 8 – Drives

A – Drive Shaft Models

Section 9 – Power Steering

A – Pump

This manual is the same as the manual used by workshops. Service Manual contains detailed instructions and step by step diagrams for all workshop procedures.

 Language: English 
Format: PDF

COMPATIBLE WITH ALL WINDOWS & MAC COMPUTERS 
(WINDOWS 11, WINDOWS 10, WINDOWS 8 ETC.) 

Windows/Mac/Tablet/Phone Friendly

• 1998–2015: MerCruiser used the GM 4.3L Vortec V6 engine, which featured an 8-bolt intake manifold, a roller camshaft and lifters, and a one-piece rear main seal.
  • Horsepower: Horsepower ratings varied with the fuel system and year, but models from this era produced around 190–225 hp.
  • Fuel system: Multiple options were available:
    • Carbureted (2 BBL): Found on earlier models, using a standard two-barrel carburetor.
    • MPI (Multi-Port Injection): Offered from 1998 onwards, MPI provided more precise fuel delivery, leading to better performance and efficiency.
    • TKS (Turn Key Start): This carbureted system simplified starting by eliminating the need for a choke, especially on earlier models.
• 2016 onward: The 4.3L MPI engine was updated to offer higher performance and improved efficiency.
  • Horsepower: Later MPI models were rated at up to 250 hp.
  • Features: In 2016, MerCruiser introduced a more modern, compact 4.5L V6 engine, but the 4.3L MPI continued to be offered for some time. 

• Alpha One Gen II: This drive is the standard pairing for the 4.3L engine, especially on runabouts and small cruisers. It is rated for gas engines up to 300 hp.
• Bravo: For heavier vessels like larger runabouts or cruisers, a heavier-duty Bravo sterndrive (typically a Bravo Two or Bravo Three) is used. The Bravo drive offers a larger gearcase and counter-rotating dual propellers (on the Bravo Three) for better thrust and handling. 

• Sport boats and runabouts: Small and mid-sized boats like a Bayliner 195 or Sea Ray 210 Sundeck are often powered by a 4.3L engine with an Alpha drive.
• Cruisers: Larger cruisers and houseboats typically use a 4.3L with a Bravo Two or Bravo Three drive for the added thrust and strength needed to move the heavier hull.
• Twin-engine setups: Twin 4.3L MPI engines can be used in larger vessels, providing excellent power and a relatively lighter engine package compared to bigger V8s