Mitsubishi specifications 11A-12-46G7 Engine E W Piston and Connecting Rod, AA Piston PIN

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11A-12-46G7 ENGINE (E - W) - Piston and Connecting Rod

D C

INSTALLATION SERVICE POINTS

"AA PISTON PIN

(1) Measure the dimensions of the following parts and portions:

A:

Piston pin mounting portion

B:

Distance between piston bosses

C: Piston pin

D: Connecting rod

Connecting rod

Piston

Piston pin

(2) Calculate by substituting each measured value into the

following equation:

(A - C) - (B - D)

L =

2

BA

7EN0432

3 mm + L

Guide B

Guide A

 

7EN0433

Push rod

Piston pin

FrontFront mark mark

Guide A

Base

Guide B

7EN0391

E Mitsubishi Motors Corporation

Dec. 1996

(3)Insert the special push rod tool into the piston pin and attach guide A to it.

(4)Combine the piston and the connecting rod, matching their front marks.

(5)Apply engine oil to the outer periphery of the piston pin.

(6)Insert the side of the piston pin guide A attached per Step (3) into the pin hole from the side of the piston containing the front mark.

(7)Screw guide B into guide A until they are distance L (obtained per Step (2) above) plus 3 mm apart as shown.

(8)Use special tools to set the piston pin to a special tool piston setting base with the front mark of the piston facing up.

(9)Press fit the piston pin with a press. When the load required for press fitting the piston pin is below the standard value, change the piston pin (piston assembly) or the connecting rod or both.

Standard values: 7,350 - 17,200 N

PWEE9615

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Contents Contents 11A-0-111A-0-2 General Information General Specifications11A-0-3 Service Specifications Specifications11A-1-1 Rework Dimensions 11A-1-2Torque Specifications 11A-1-311A-1-4 Intake manifold11A-1-5 SealantsFORM-IN-PLACE Gasket Disassembly11A-1-6 Surface PreparationSpecial Tools 11A-2-111A-2-2 Alternator Removal and Installation11A-3-1 11A-3-2 Removal Service PointsInstallation Service Points AA Crankshaft BoltAIR Intake Plenum 11A-4-111A-4-2 AA Throttle Body GasketIgnition System 11A-5-111A-6-1 Timing Belt1113 AA Timing Belt 11A-6-2Inspection AB Camshaft Sprocket BoltAA Camshaft Sprocket Bolt 11A-6-3AUTO-TENSIONER BA AUTO-TENSIONER11A-6-4 CA Timing Belt11A-6-5 Right bank Left bankStandard value 3.8 5.0 mm 11A-6-6DA Engine Support Bracket Intake Manifold 11A-7-1BA Thermostat 11A-7-2AA O-RING / Water Pipe CA Heater Inlet and Outlet PipesGainjector 11A-7-3FA Intake Manifold HA Fuel Pressure Regulator11A-8-1 Exhaust Manifold & Water Pump6G7 Engine E W Exhaust Manifold & Water Pump Keep the O-ring free of oil grease 11A-8-26G7 Engine E W Exhaust Manifold & Water PumpBA Exhaust Manifold Gasket 11A-9-1 Rocker Arms and Camshaft6G7 Engine E W Rocker Arms and Camshaft 11A-9-26G7 Engine E W Rocker Arms and Camshaft Lash Adjuster Leak Down TestAA Lash Adjuster CamshaftAA Camshaft BA Lash Adjuster11A-9-3 CA Rocker ARM ShaftDA Rocker Shaft Spring 11A-9-46G7 Engine E W Rocker Arms and CamshaftEA OIL Seal 11A-10-1 Cylinder Head and Valves6G7 Engine E W Cylinder Head and Valves AC Valve Stem Seal 11A-10-26G7 Engine E W Cylinder Head and ValvesAA Cylinder Head Bolt AB Retainer Lock Do not reuse the stem sealValves 11A-10-3Cylinder Head Valve Spring11A-10-46G7 Engine E W Cylinder Head and Valves Valve Seat Reconditioning ProcedureValve Seat Replacement Procedure Valve Guide11A-10-5 Valve Guide Replacement ProcedureAA Valve Stem Seal BA Valve Spring 11A-10-66G7 Engine E W Cylinder Head and ValvesCA Valve Retainer Lock OIL PAN and OIL Pump 11A-11-1AC OIL Pump Outer and Inner Rotors AA OIL PAN LowerAB OIL PAN Upper OIL PumpStandard value 0.10 0.18 mm Limit 0.35 mm 11A-11-3Standard value 0.04 0.10 mm AA OIL Pump Inner and Outer Rotors11A-11-46G7 Engine E W Oil Pan and Oil Pump CA OIL Seal DA OIL PAN UpperEA OIL PAN Lower Gaoil Pressure Switch11A-11-5 FA OIL Filter6G7 Engine E W Piston and Connecting Rod Piston and Connecting ROD11A-12-1 AA Connecting ROD CAP 11A-12-26G7 Engine E W Piston and Connecting RodAB Piston PIN Piston Ring 11A-12-3Crankshaft PIN OIL Clearance Plastigauge Method AA Piston PIN 11A-12-46G7 Engine E W Piston and Connecting RodStandard values 7,350 17,200 N Side rail may break if a ring expander is used 11A-12-5BA OIL Ring CA Piston Ring no / Piston Ring noEA Connecting ROD CAP 11A-12-66G7 Engine E W Piston and Connecting RodDA Piston and Connecting ROD Standard value 0.10 0.25 mm Limit 0.4 mmCRANKSHAFT, Flywheel and Drive Plate 6G7 Engine E W Crankshaft, Flywheel and Drive Plate 11A-13-1Standard values 0.02 0.04 mm Limit 0.1 mm 11A-13-26G7 Engine E W Crankshaft, Flywheel and Drive PlateCrankshaft OIL Clearance Plastigauge Method Cylinder BlockPiston size identification Boring CylinderClearance between piston and cylinder 02 0.04 mm 11A-13-46G7 Engine E W Crankshaft, Flywheel and Drive Plate AA Crankshaft Bearing6G7 Engine E W Crankshaft, Flywheel and Drive Plate 11A-13-5 BA Bearing CAP / Bearing BoltCA Crankshaft Rear OIL Seal 11A-13-66G7 Engine E W Crankshaft, Flywheel and Drive PlateStandard value 0.05 0.25 mm Limit 0.3 mm 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.