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Technical information of Mitsubishi S12 diesel engine body inspection and repair


Detailed Description:

Technical information on Mitsubishi S12 diesel engine body inspection and repair

1. Inspection and repair of cylinder head and valve mechanism of Mitsubishi S12 diesel engine .............. 6-3

1.1 Measure the inner diameter of the Mitsubishi S12 diesel engine rocker bushing and the outer diameter of the Mitsubishi S12 diesel engine rocker shaft ... 6-3

1.2 Replacement of Mitsubishi S12 diesel engine rocker bushing ... ..................... 6-3

1.3 Measure outer diameter of valve stem and inner diameter of valve guide of Mitsubishi S12 diesel engine ......... 6-4

1.4 Replacement of Mitsubishi S12 Diesel Engine Valve Guide ... ..................... 6-4

1.5 Check the valve contact surface ... 6-5

1.6 Trimming the valve contact surface ... 6-5

1.7 Trimming the seat ... ..................... 6-6

1.8 Replace the seat .................... ..................... 6-6

1.9 Grind the valve and seat. ........................................ ......... 6-8

1.10 Detection of valve bridge, bridge friction top plate, 卡 -shaped ferrule, valve end cover ............... ..... 6-8

1.11 Measure the inclination and free length of valve spring of Mitsubishi S12 diesel engine ... .. 6-9

1.12 Checking the sleeve ... ..................... 6-9

1.13 Measuring the bounce of the ejector .............................. ..................... 6-10

1.14 Detection and Replacement of Mitsubishi S12 Diesel Engine Injector Pressure Plate Studs, Bridge Guide Rods ... 10

1.15 Measure the deformation of the lower surface of the cylinder head of Mitsubishi S12 diesel engine ... .. 6-10

2. Inspection and repair of rear device ... .... 6-11

2.1 Measure the inner diameter of the rear idler gear bushing of Mitsubishi S12 diesel engine and the outer diameter of the idler gear shaft of Mitsubishi S12 diesel engine after Mitsubishi S12 diesel engine ... ............... 6-11

2.2 Replacement of the Mitsubishi S12 diesel engine rear idler bushing .............. ............... 6-11

2.3 Measuring cam lift of Mitsubishi S12 diesel engine camshaft ... 6-12

2.4 Measure the runout of camshaft of Mitsubishi S12 diesel engine .............. ............. 6-12

2.5 Measure the outer diameter of the camshaft neck of Mitsubishi S12 diesel engine ... .............. 6-12

2.6 Inspection of Mitsubishi S12 diesel engine camshaft bushing ... ..................... 6-13

2.7 Replacement of Mitsubishi S12 diesel engine camshaft bushing ... ..................... 6-13

3. Inspection and repair of front device ... .......... 6-14

3.1 Visual inspection of shock absorber for Mitsubishi S12 diesel engine ... ............... 6-14

3.2 Detecting Pulleys .............. 6-14

3.3 Measure the inner diameter of the idler bushing of the fan driver of the Mitsubishi S12 diesel engine, and the outer diameter of the idler gear shaft of the Mitsubishi S12 diesel engine fan driver. 6-14

3.4 Replacement of Mitsubishi S12 Diesel Engine Fan Drive Idler Bushing ... .................. 6-15

3.5 Detect the outer diameter and inner diameter of the bearing installation part of the Mitsubishi S12 diesel engine lubricant pump driver .............. ..... 6-15

3.6 Measure the inner diameter of the front idler bushing and the outer diameter of the idler shaft of the front Mitsubishi S12 diesel engine ... ............. 6-15

3.7 Replacing the front idler bushing ... ..... 6-16

4. Inspection and Repair of Mitsubishi S12 Diesel Engine Pistons and Mitsubishi S12 Diesel Engine Connecting Rods ............ 6-17

4.1 Checking the appearance of Mitsubishi S12 diesel engine pistons ... ..................... 6-17

4.2 Piston Quality of Mitsubishi S12 Diesel Engine ... ............. 6-17

4.3 Measure the outer diameter of the piston of Mitsubishi S12 diesel engine ... ..................... 6-17

4.4 Inspection of Mitsubishi S12 diesel engine piston ring grooves ... ..................... 6-18

4.5 Measure the inner diameter of the piston pin hole of the Mitsubishi S12 diesel engine ... ............. 6-18

4.6 Checking the appearance of the piston ring of Mitsubishi S12 diesel engine ... ............... 6-18

4.7 Measuring the open clearance of the piston ring of Mitsubishi S12 diesel engine .............. ..................... 6-18

4.8 Measure the outer diameter of the piston pin of Mitsubishi S12 diesel engine ... ............... 6-19

4.9 Measuring the inside diameter of the Mitsubishi S12 diesel engine connecting rod bushing ... .............. 6-19

4.10 Replacement of Mitsubishi S12 diesel engine connecting rod bushing ... .... 6-19

4.11 Quality Level of Mitsubishi S12 Diesel Engine Connecting Rod Assembly .............. 6-22

4.12 Measure the inside diameter and ellipse of the big end hole of the Mitsubishi S12 diesel engine connecting rod .... 6-22

4.13 Detecting the side (wide) of the big end of the Mitsubishi S12 diesel engine connecting rod ... ..... 6-22

4.14 Check the serrated part and bolt hole of the big end of Mitsubishi S12 diesel engine connecting rod .............. ......... 6-23

4.15 Checking the bearing bush of the Mitsubishi S12 diesel engine connecting rod bearing .. 6-23

4.16 Measure the thickness of the connecting rod bearing of Mitsubishi S12 diesel engine .. 6-23

4.17 Detecting the bending and twisting of the Mitsubishi S12 diesel engine connecting rod ... .... 6-24

5. Inspection and repair of Mitsubishi S12 diesel engine cylinder block and Mitsubishi S12 diesel engine crankshaft ...

5.1 Measuring the deformation of the upper surface of the cylinder block of Mitsubishi S12 diesel engine ... ..... 6-25

5.2 Measure the inner diameter of the main bearing pad hole of Mitsubishi S12 diesel engine .............. 6-25

5.3 Inspection of Mitsubishi S12 Diesel Engine Cylinder Liner Mounting Parts for Mitsubishi S12 Diesel Engine Blocks .. 6-25

5.4 Trimming the groove of Mitsubishi S12 diesel engine block ... 6-26

5.5 Measure the outer diameter of the crank pin of the crankshaft of Mitsubishi S12 diesel engine and the crankshaft neck of Mitsubishi S12 diesel engine ... 27

5.6 Measure the width of the crank pin journal, the journal width of the rear end Mitsubishi S12 diesel engine crank journal ... ........ 6-28

5.7 Measure the runout of the crankshaft of Mitsubishi S12 diesel engine ... .............. 6-29

5.8 Testing Mitsubishi S12 diesel engine crank gear ... ..................... 6-29

5.9 Replacement of Mitsubishi S12 diesel engine crank gear ... ..................... 6-29

5.10 Checking the oil seal and oil ring of Mitsubishi S12 diesel engine ... ..... 6-30

5.11 Replacing the oil seal and oil ring of Mitsubishi S12 diesel engine ... .. 6-30

5.12 Checking the Spindle Bushes .................... .............. 6-31

5.13 Measuring the thickness of the spindle bush ... ..... 6-32

5.14 Checking the thrust plate of Mitsubishi S12 diesel engine .. 6-32

5.15 Measure the thickness of thrust plate of Mitsubishi S12 diesel engine .. 6-33

5.16 Checking the Mitsubishi S12 Diesel Engine Piston Cooling Nozzle .............. 6-33

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