Mitsubishi 6G7 specifications 11A-1-1, Service Specifications

Page 4

6G7 ENGINE (E - W) - Specifications

11A-1-1

1. SPECIFICATIONS

 

 

 

SERVICE SPECIFICATIONS

 

 

 

 

 

 

 

Items

 

Standard

Limit

 

 

 

 

Timing belt

 

 

 

 

 

 

 

Auto-tensioner rod length mm

 

3.8 - 5.0

-

 

 

 

 

Auto-tensioner rod projection length mm

 

12

-

 

 

 

 

Auto-tensioner rod pushed-in amount (when pushed with a force of 98

1.0 or less

-

- 196 N) mm

 

 

 

 

 

 

 

Rocker arms and camshaft

 

 

 

 

 

 

 

Camshaft cam height mm (Identification

Intake

37.71

37.21

mark: 1)

 

 

 

Exhaust

37.14

36.64

 

 

 

 

 

Camshaft journal outside diameter mm

 

45

-

 

 

 

 

Lash adjuster leak down time

 

4 - 20/1.0

-

[diesel fuel at 15 - 20_C] seconds/mm

 

 

 

 

 

 

 

Cylinder head and valves

 

 

 

 

 

 

 

Cylinder head flatness of gasket surface mm

 

Less than 0.03

0.2

 

 

 

Cylinder head grinding limit of gasket surface mm

-

0.2

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

 

 

 

 

 

 

Cylinder head overall height mm

 

120

-

 

 

 

 

Valve thickness of valve head (margin) mm

Intake

1.0

0.5

 

 

 

 

 

Exhaust

1.2

0.7

 

 

 

 

Valve overall height mm

Intake

112.30

111.80

 

 

 

 

 

Exhaust

114.11

113.61

 

 

 

 

Valve stem outside diameter mm

Intake

6.0

-

 

 

 

 

 

Exhaust

6.0

-

 

 

 

 

Valve thickness to valve guide clearance mm

Intake

0.02 - 0.04

0.10

 

 

 

 

 

Exhaust

0.04 - 0.06

0.15

 

 

 

 

Valve face angle mm

 

45_ - 45.5_

-

 

 

 

 

Valve spring free length mm

 

51.0

50.0

 

 

 

 

Valve spring load/installed height N/mm

 

267/44.2

-

 

 

 

 

Valve spring out-of-squareness

 

2_ or less

Maximum 4_

 

 

 

 

Valve seat valve contact width mm

 

0.9 - 1.3

-

 

 

 

 

Valve guide inside diameter mm

 

6.0

-

 

 

 

Valve guide projection from cylinder head upper surface mm

14

-

 

 

 

 

Valve stem projection mm

 

49.3

49.8

 

 

 

 

Oil pan and oil pump

 

 

 

 

 

 

 

Oil pump tip clearance mm

 

0.06 - 0.18

-

 

 

 

 

E Mitsubishi Motors Corporation

Dec. 1996

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 SealantsDisassembly 11A-1-6FORM-IN-PLACE Gasket Surface PreparationSpecial Tools 11A-2-111A-2-2 Alternator Removal and Installation11A-3-1 Removal Service Points Installation Service Points11A-3-2 AA Crankshaft BoltAIR Intake Plenum 11A-4-111A-4-2 AA Throttle Body GasketIgnition System 11A-5-111A-6-1 Timing Belt1113 11A-6-2 InspectionAA Timing Belt AB Camshaft Sprocket Bolt11A-6-3 AUTO-TENSIONERAA Camshaft Sprocket Bolt 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-7-111A-7-2 AA O-RING / Water PipeBA Thermostat CA Heater Inlet and Outlet Pipes11A-7-3 FA Intake ManifoldGainjector 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 Lash Adjuster Leak Down Test AA Lash Adjuster11A-9-26G7 Engine E W Rocker Arms and Camshaft CamshaftBA Lash Adjuster 11A-9-3AA Camshaft 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 11A-10-26G7 Engine E W Cylinder Head and Valves AA Cylinder Head Bolt AB Retainer LockAC Valve Stem Seal Do not reuse the stem seal11A-10-3 Cylinder HeadValves Valve SpringValve Seat Reconditioning Procedure Valve Seat Replacement Procedure11A-10-46G7 Engine E W Cylinder Head and Valves 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-11-1AA OIL PAN Lower AB OIL PAN UpperAC OIL Pump Outer and Inner Rotors OIL Pump11A-11-3 Standard value 0.04 0.10 mmStandard value 0.10 0.18 mm Limit 0.35 mm AA OIL Pump Inner and Outer Rotors11A-11-46G7 Engine E W Oil Pan and Oil Pump CA OIL Seal DA OIL PAN UpperGaoil Pressure Switch 11A-11-5EA OIL PAN Lower 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 11A-12-5 BA OIL RingSide rail may break if a ring expander is used CA Piston Ring no / Piston Ring no11A-12-66G7 Engine E W Piston and Connecting Rod DA Piston and Connecting RODEA Connecting ROD CAP 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-13-111A-13-26G7 Engine E W Crankshaft, Flywheel and Drive Plate Crankshaft OIL Clearance Plastigauge MethodStandard values 0.02 0.04 mm Limit 0.1 mm 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 Bolt11A-13-66G7 Engine E W Crankshaft, Flywheel and Drive Plate Standard value 0.05 0.25 mm Limit 0.3 mmCA 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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