Mitsubishi 6G7 specifications Boring Cylinder, Piston size identification

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6G7 ENGINE (E - W) - Crankshaft, Flywheel and Drive Plate 11A-13-3

Thrust direction

Piston O.D.

6EN0554

BORING CYLINDER

(1)Oversize pistons to be used should be determined on the basis of the largest bore cylinder.

Piston size identification

Size

Identification mark

 

 

0.50 mm O.S.

0.50

 

 

1.00 mm O.S.

1.00

 

 

NOTE

Size mark is stamped on the piston top.

(2)Measure outside diameter of piston to be used. Measure it in thrust direction as shown.

(3)Based on the measured piston O.D., calculate the boring finish dimension.

Boring finish dimension = Piston O.D. + (Clearance between piston O.D. and cylinder) - 0.02 mm (honing margin)

(4)Bore all cylinders to the calculated boring finish dimension.

Caution

D To prevent distortion that may result from temperature rise during honing, bore cylinders, in the order of No. 1, No. 2, No. 3, No. 4, No. 5 and No. 6.

(5)Hone to the final finish dimension (Piston O.D. + clearance between piston O.D. and cylinder.)

(6)Check the clearance between piston and cylinder.

Clearance between piston and cylinder:

0.02- 0.04 mm

NOTE

When boring cylinders, finish all of four cylinders to the same oversize. Do not bore only one cylinder to an oversize.

E Mitsubishi Motors Corporation

Dec. 1996

PWEE9615

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Page 50 Page 52
Contents 11A-0-1 Contents11A-0-2 General Specifications General Information11A-0-3 Specifications Service Specifications11A-1-1 11A-1-2 Rework Dimensions11A-1-3 Torque SpecificationsIntake manifold 11A-1-4Sealants 11A-1-5Surface Preparation Disassembly11A-1-6 FORM-IN-PLACE Gasket11A-2-1 Special Tools11A-2-2 Removal and Installation Alternator11A-3-1 AA Crankshaft Bolt Removal Service PointsInstallation Service Points 11A-3-211A-4-1 AIR Intake PlenumAA Throttle Body Gasket 11A-4-211A-5-1 Ignition SystemTiming Belt 11A-6-11113 AB Camshaft Sprocket Bolt 11A-6-2Inspection AA Timing BeltBA AUTO-TENSIONER 11A-6-3AUTO-TENSIONER AA Camshaft Sprocket BoltCA Timing Belt 11A-6-4Right bank Left bank 11A-6-511A-6-6 Standard value 3.8 5.0 mmDA Engine Support Bracket 11A-7-1 Intake ManifoldCA Heater Inlet and Outlet Pipes 11A-7-2AA O-RING / Water Pipe BA ThermostatHA Fuel Pressure Regulator 11A-7-3FA Intake Manifold GainjectorExhaust Manifold & Water Pump 11A-8-16G7 Engine E W Exhaust Manifold & Water Pump 11A-8-26G7 Engine E W Exhaust Manifold & Water Pump Keep the O-ring free of oil greaseBA Exhaust Manifold Gasket Rocker Arms and Camshaft 11A-9-16G7 Engine E W Rocker Arms and Camshaft Camshaft Lash Adjuster Leak Down TestAA Lash Adjuster 11A-9-26G7 Engine E W Rocker Arms and CamshaftCA Rocker ARM Shaft BA Lash Adjuster11A-9-3 AA Camshaft11A-9-46G7 Engine E W Rocker Arms and Camshaft DA Rocker Shaft SpringEA OIL Seal Cylinder Head and Valves 11A-10-16G7 Engine E W Cylinder Head and Valves Do not reuse the stem seal 11A-10-26G7 Engine E W Cylinder Head and ValvesAA Cylinder Head Bolt AB Retainer Lock AC Valve Stem SealValve Spring 11A-10-3Cylinder Head ValvesValve Guide Valve Seat Reconditioning ProcedureValve Seat Replacement Procedure 11A-10-46G7 Engine E W Cylinder Head and ValvesValve Guide Replacement Procedure 11A-10-5AA Valve Stem Seal 11A-10-66G7 Engine E W Cylinder Head and Valves BA Valve SpringCA Valve Retainer Lock 11A-11-1 OIL PAN and OIL PumpOIL Pump AA OIL PAN LowerAB OIL PAN Upper AC OIL Pump Outer and Inner RotorsAA OIL Pump Inner and Outer Rotors 11A-11-3Standard value 0.04 0.10 mm Standard value 0.10 0.18 mm Limit 0.35 mmCA OIL Seal DA OIL PAN Upper 11A-11-46G7 Engine E W Oil Pan and Oil PumpFA OIL Filter Gaoil Pressure Switch11A-11-5 EA OIL PAN LowerPiston and Connecting ROD 6G7 Engine E W Piston and Connecting Rod11A-12-1 11A-12-26G7 Engine E W Piston and Connecting Rod AA Connecting ROD CAPAB Piston PIN 11A-12-3 Piston RingCrankshaft PIN OIL Clearance Plastigauge Method 11A-12-46G7 Engine E W Piston and Connecting Rod AA Piston PINStandard values 7,350 17,200 N CA Piston Ring no / Piston Ring no 11A-12-5BA OIL Ring Side rail may break if a ring expander is usedStandard value 0.10 0.25 mm Limit 0.4 mm 11A-12-66G7 Engine E W Piston and Connecting RodDA Piston and Connecting ROD EA Connecting ROD CAP6G7 Engine E W Crankshaft, Flywheel and Drive Plate 11A-13-1 CRANKSHAFT, Flywheel and Drive PlateCylinder Block 11A-13-26G7 Engine E W Crankshaft, Flywheel and Drive PlateCrankshaft OIL Clearance Plastigauge Method Standard values 0.02 0.04 mm Limit 0.1 mmBoring Cylinder Piston size identificationClearance between piston and cylinder 02 0.04 mm 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-13-5DA OIL Seal Case 11A-13-66G7 Engine E W Crankshaft, Flywheel and Drive PlateStandard value 0.05 0.25 mm Limit 0.3 mm CA Crankshaft Rear OIL Seal

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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