Mitsubishi 6G7 specifications 11A-1-2, Rework Dimensions

Page 5

11A-1-2

6G7 ENGINE (E - W) - Specifications

 

 

 

 

 

 

 

 

Items

 

 

 

 

Standard

Limit

 

 

 

 

 

 

 

Oil pump side clearance mm

 

 

0.04

- 0.10

-

 

 

 

 

 

 

 

Oil pump body clearance mm

 

 

0.10

- 0.18

0.35

 

 

 

 

 

 

 

Piston and connecting rod

 

 

 

 

 

 

 

 

 

 

 

 

Piston outside diameter mm

 

 

91.1

 

-

 

 

 

 

 

 

 

Piston ring to ring groove clearance mm

 

No. 1

0.03

- 0.07

0.1

 

 

 

 

 

 

 

 

 

 

 

 

No. 2

0.02

- 0.06

0.1

 

 

 

 

 

 

 

Piston ring end gap mm

 

No. 1

0.30

- 0.45

0.8

 

 

 

 

 

 

 

 

 

 

 

 

No. 2

0.45

- 0.60

0.8

 

 

 

 

 

 

 

 

 

 

 

 

Oil ring side rail

0.20

- 0.60

1.0

 

 

 

 

 

 

 

Piston pin outside diameter mm

 

 

22.0

 

-

 

 

 

 

Piston pin press-in load N (Room temperature)

7,350 - 17,200

-

 

 

 

 

 

 

 

Crankshaft pin oil clearance mm

 

 

0.02

- 0.05

0.1

 

 

 

 

 

Connecting rod big end side clearance mm

0.10

- 0.25

0.4

 

 

 

 

 

 

 

Crankshaft, flywheel and drive plate

 

 

 

 

 

 

 

 

 

 

 

 

Crankshaft end play mm

 

 

0.05

- 0.25

0.3

 

 

 

 

 

 

 

Crankshaft journal outside diameter mm

 

 

60

 

-

 

 

 

 

 

 

 

Crankshaft pin outside diameter mm

 

 

50

 

-

 

 

 

 

 

 

 

Crankshaft journal oil clearance mm

 

 

0.02

- 0.05

0.1

 

 

 

 

 

 

 

Piston to cylinder clearance mm

 

 

0.02

- 0.04

-

 

 

 

 

 

Cylinder block flatness of gasket surface mm

0.05

 

0.1

 

 

 

 

 

Cylinder block grinding limit of gasket surface mm

-

 

0.2

(Total resurfacing depth of both cylinder head and cylinder block)

 

 

 

 

 

 

 

 

 

Cylinder block overall height mm

 

 

210.5

-

 

 

 

 

 

 

 

Cylinder bore inside diameter mm

 

 

91.1

 

-

 

 

 

 

 

 

 

 

Cylindricity mm

 

 

 

 

0.01

 

-

 

 

 

 

 

 

 

REWORK DIMENSIONS

 

 

 

 

 

 

 

 

 

 

 

 

Items

 

 

 

 

Standard value

Limit

 

 

 

 

 

Oversize rework dimensions of valve

 

0.05 Oversize diameter

11.05 - 11.07

-

guide hole mm

 

 

 

 

 

 

 

 

 

0.25 Oversize diameter

11.25 - 11.27

-

 

 

 

 

 

 

 

 

 

 

 

 

0.50 Oversize diameter

11.50 - 11.52

-

 

 

 

 

 

Oversize rework dimensions of intake

 

0.3 Oversize diameter

34.30 - 34.33

-

valve seat hole mm

 

 

 

 

 

 

 

 

 

0.6 Oversize diameter

34.60 - 34.63

-

 

 

 

 

 

 

 

 

 

Oversize rework

dimensions of

 

0.3 Oversize diameter

31.80 - 31.83

-

exhaust valve seat hole mm

 

 

 

 

 

 

 

0.6 Oversize diameter

32.10 - 32.13

-

 

 

 

 

 

 

 

 

 

 

 

E Mitsubishi Motors Corporation

Dec. 1996

PWEE9615

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Page 4 Page 6
Contents 11A-0-1 Contents11A-0-2 11A-0-3 General SpecificationsGeneral Information 11A-1-1 SpecificationsService Specifications 11A-1-2 Rework Dimensions11A-1-3 Torque SpecificationsIntake manifold 11A-1-4Sealants 11A-1-511A-1-6 DisassemblyFORM-IN-PLACE Gasket Surface Preparation11A-2-1 Special Tools11A-2-2 11A-3-1 Removal and InstallationAlternator Installation Service Points Removal Service Points11A-3-2 AA Crankshaft Bolt11A-4-1 AIR Intake PlenumAA Throttle Body Gasket 11A-4-211A-5-1 Ignition System1113 Timing Belt11A-6-1 Inspection 11A-6-2AA Timing Belt AB Camshaft Sprocket BoltAUTO-TENSIONER 11A-6-3AA Camshaft Sprocket Bolt BA AUTO-TENSIONERCA Timing Belt 11A-6-4Right bank Left bank 11A-6-5DA Engine Support Bracket 11A-6-6Standard value 3.8 5.0 mm 11A-7-1 Intake ManifoldAA O-RING / Water Pipe 11A-7-2BA Thermostat CA Heater Inlet and Outlet PipesFA Intake Manifold 11A-7-3Gainjector HA Fuel Pressure Regulator6G7 Engine E W Exhaust Manifold & Water Pump Exhaust Manifold & Water Pump11A-8-1 BA Exhaust Manifold Gasket 11A-8-26G7 Engine E W Exhaust Manifold & Water PumpKeep the O-ring free of oil grease 6G7 Engine E W Rocker Arms and Camshaft Rocker Arms and Camshaft11A-9-1 AA Lash Adjuster Lash Adjuster Leak Down Test11A-9-26G7 Engine E W Rocker Arms and Camshaft Camshaft11A-9-3 BA Lash AdjusterAA Camshaft CA Rocker ARM ShaftEA OIL Seal 11A-9-46G7 Engine E W Rocker Arms and CamshaftDA Rocker Shaft Spring 6G7 Engine E W Cylinder Head and Valves Cylinder Head and Valves11A-10-1 AA Cylinder Head Bolt AB Retainer Lock 11A-10-26G7 Engine E W Cylinder Head and ValvesAC Valve Stem Seal Do not reuse the stem sealCylinder Head 11A-10-3Valves Valve SpringValve Seat Replacement Procedure Valve Seat Reconditioning Procedure11A-10-46G7 Engine E W Cylinder Head and Valves Valve GuideAA Valve Stem Seal Valve Guide Replacement Procedure11A-10-5 CA Valve Retainer Lock 11A-10-66G7 Engine E W Cylinder Head and ValvesBA Valve Spring 11A-11-1 OIL PAN and OIL PumpAB OIL PAN Upper AA OIL PAN LowerAC OIL Pump Outer and Inner Rotors OIL PumpStandard value 0.04 0.10 mm 11A-11-3Standard value 0.10 0.18 mm Limit 0.35 mm AA OIL Pump Inner and Outer RotorsCA OIL Seal DA OIL PAN Upper 11A-11-46G7 Engine E W Oil Pan and Oil Pump11A-11-5 Gaoil Pressure SwitchEA OIL PAN Lower FA OIL Filter11A-12-1 Piston and Connecting ROD6G7 Engine E W Piston and Connecting Rod AB Piston PIN 11A-12-26G7 Engine E W Piston and Connecting RodAA Connecting ROD CAP Crankshaft PIN OIL Clearance Plastigauge Method 11A-12-3Piston Ring Standard values 7,350 17,200 N 11A-12-46G7 Engine E W Piston and Connecting RodAA Piston PIN BA OIL Ring 11A-12-5Side rail may break if a ring expander is used CA Piston Ring no / Piston Ring noDA Piston and Connecting ROD 11A-12-66G7 Engine E W Piston and Connecting RodEA Connecting ROD CAP Standard value 0.10 0.25 mm Limit 0.4 mm6G7 Engine E W Crankshaft, Flywheel and Drive Plate 11A-13-1 CRANKSHAFT, Flywheel and Drive PlateCrankshaft OIL Clearance Plastigauge Method 11A-13-26G7 Engine E W Crankshaft, Flywheel and Drive PlateStandard values 0.02 0.04 mm Limit 0.1 mm Cylinder BlockClearance between piston and cylinder 02 0.04 mm Boring CylinderPiston size identification AA Crankshaft Bearing 11A-13-46G7 Engine E W Crankshaft, Flywheel and Drive PlateBA Bearing CAP / Bearing Bolt 6G7 Engine E W Crankshaft, Flywheel and Drive Plate 11A-13-5Standard value 0.05 0.25 mm Limit 0.3 mm 11A-13-66G7 Engine E W Crankshaft, Flywheel and Drive PlateCA Crankshaft Rear OIL Seal DA OIL Seal Case

6G7 specifications

The Mitsubishi 6G7 engine is a robust V6 gasoline engine that has garnered attention for its blend of performance and efficiency. Primarily designed for use in a variety of Mitsubishi vehicles, including sedans and SUVs, the 6G7 series illustrates the engineering prowess of Mitsubishi in creating reliable and powerful engines.

One of the standout features of the 6G7 engine is its V6 configuration, which provides a good balance of power and smoothness. This engine typically displaces 3.0 liters, though variants exist with slightly different displacements. The 6G7 showcases a double overhead camshaft (DOHC) design, which facilitates efficient airflow and enhances power output. This configuration allows the engine to produce a substantial amount of horsepower while maintaining fuel efficiency, making it an attractive option for both performance-driven drivers and those focused on daily commuting.

In terms of technology, the 6G7 utilizes Mitsubishi’s advanced fuel injection system, which optimizes the fuel-air mixture for efficient combustion. This not only contributes to improved power output but also helps in reducing emissions, making the engine more environmentally friendly. Additionally, the integration of a variable valve timing (VVT) system enhances the engine's performance across various RPM ranges, providing both low-end torque and high-end power.

The 6G7 is designed with durability in mind. It features a robust iron block and aluminum alloy cylinder heads, which contribute to the engine's longevity and overall reliability. The use of advanced materials and manufacturing techniques helps to minimize wear and extend the lifespan of critical components.

Another important characteristic of the 6G7 engine is its smooth operation. The V6 configuration inherently provides balance, reducing vibrations and ensuring a refined driving experience. Coupled with a well-tuned exhaust system, the engine produces a pleasing sound that enhances the overall driving experience without being overwhelming.

In conclusion, the Mitsubishi 6G7 engine series stands out for its combination of power, efficiency, and durability. With advanced technologies like DOHC, VVT, and an efficient fuel injection system, the 6G7 remains a popular choice in various Mitsubishi models. Its smooth operation and robust construction further establish it as a reliable engine, appealing to a wide range of drivers seeking performance without sacrificing efficiency. The 6G7 serves as a testament to Mitsubishi's commitment to engineering excellence and innovation in the automotive industry.
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