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Mitsubishi R16 diesel engine cylinder head, intake and exhaust valve mechanism dismantling, maintenance


Detailed Description:

Mitsubishi R16 diesel engine cylinder head, intake and exhaust valve mechanism dismantling, maintenance

Before dismantling, pay attention to the current status of each part of the Mitsubishi R16 diesel engine, which will help analyze the cause of failure and improve the efficiency of maintenance operations. I would like to confirm the items required in each item according to the inspection content and purpose.

间隙 Mitsubishi R16 diesel engine intake and exhaust valve clearance detection

􀂌 Detecting fuel injection timing of Mitsubishi R16 diesel engine

􀂌 Detect the gap under the valve bridge and above the valve end cap

􀂌 Detection of air valve sinking

Mitsubishi R16 diesel engine cylinder head, intake and exhaust valve mechanism dismantling, maintenance

Disintegration order

1 Mitsubishi R16 diesel engine rocker cover

2 Mitsubishi R16 diesel engine fuel inlet takeover

3 Washers and nuts

4 Mitsubishi R16 diesel engine injector plate

5 Fuel injector for Mitsubishi R16 diesel engine

6 washer

7 Adjustment screw

8 bolt

9 Rocker

10 Seats

11 Mitsubishi R16 diesel engine rocker shaft

12 bridge friction top plate

13 valve bridge

14 Jack

15 Cooling water outlet connection

16 Mitsubishi R16 diesel engine rocker box

17 Mitsubishi R16 Diesel Engine Cylinder Head Bolts

18 Mitsubishi R16 diesel engine cylinder head (approx. 35 kg)

19 Imported washer

20 锲 shaped card holder

21 Air valve turning end cap

22 Mitsubishi R16 diesel engine valve spring

23 Mitsubishi R16 Diesel Engine Stem Seal

24 Air Valve Rotating End Cap (Specification of Air Spring for 24 ~ 28 Exhaust Double Mitsubishi R16 Diesel Engine)

25 inner spring

26 outer spring

27 Lower spring seat

28 Mitsubishi R16 Diesel Engine Stem Seal

29 valve

30 Mitsubishi R16 Diesel Engine Cylinder Head Gasket

31 sleeve

1.1 Disassembly of Mitsubishi R16 diesel engine fuel inlet joint

Remove the fuel inlet connector of Mitsubishi R16 diesel engine.

1.2 Disassembly of Mitsubishi R16 Diesel Engine Injector Assembly

When using the Mitsubishi R16 Diesel Engine Injector Remover to remove the Mitsubishi R16 Diesel Engine Injector Assembly, be careful not to get your fingers caught between the weight, rod or plate of the Mitsubishi R16 Diesel Engine Injector Remover.

Before removing the Mitsubishi R16 diesel engine injector body, confirm that there are no foreign objects around the Mitsubishi R16 diesel engine injector assembly. When disassembling the injector body of Mitsubishi R16 diesel engine, be careful not to let dust and impurities fall into the cylinder head of Mitsubishi R16 diesel engine. Mitsubishi R16 diesel engine fuel injectors and Mitsubishi R16 diesel engine fuel inlets are taken over and stored together, taking care not to damage the fuel injection head.

(1) Remove the injector plate of Mitsubishi R16 diesel engine.

(2) Use the Mitsubishi R16 diesel engine injector remover to remove the Mitsubishi R16 diesel engine injector body.

(3) Take out the gasket in the cylinder head of Mitsubishi R16 diesel engine.

1.3 Mitsubishi R16 Diesel Engine Intake and Exhaust Valve Gap Detection

Check the gap between the intake and exhaust valves of the Mitsubishi R16 diesel engine to grasp the current situation. For the inspection method, refer to the "Mitsubishi R16 Diesel Engine Intake and Exhaust Valve Gap Inspection and Adjustment" item in "Mitsubishi R16 Diesel Engine Assembly".

1.4 Detecting Fuel Injection Timing of Mitsubishi R16 Diesel Engine

Check the injection timing of Mitsubishi R16 diesel engine to grasp the current situation.

For the test method, refer to the "Confirmation and Adjustment of Mitsubishi R16 Diesel Engine Fuel Injection Timing" item in "Assembly of Mitsubishi R16 Diesel Engine Body".

1.5 Disassembly of Mitsubishi R16 Diesel Engine Rocker Shaft Assembly

(1) Loosen the adjustment screw of the rocker arm.

(2) Remove the Mitsubishi R16 diesel engine rocker shaft assembly from the Mitsubishi R16 diesel engine rocker housing.

Note: The removed Mitsubishi R16 diesel engine rocker shaft assembly is stored with the bolts.

(3) Take out the ejector pin.

(4) Disassemble the Mitsubishi R16 diesel engine rocker shaft assembly.

Note: The rocker bushing does not need to be removed if there is no abnormality or the inner diameter does not exceed the limit value.

1.6 Check the gap under the valve bridge and above the valve end cap

Detect the gap between the underside of the valve bridge and the top of the air valve's rotating end cap to grasp the current situation.

For the inspection method, please refer to the item "Detection of the clearance under the valve bridge and above the valve end cover" of "Assembly of Mitsubishi R16 Diesel Engine".

1.7 Removing the valve bridge

Remove the valve bridge and bridge friction top.

Note: Be careful not to drop the friction plate of the bridge into the cylinder head of Mitsubishi R16 diesel engine.

1.8 Removing the Mitsubishi R16 Diesel Engine Rocker Box

(1) Remove the retaining ring of the cooling water outlet pipe.

(2) Move the cooling water outlet pipe toward the snap ring groove side to separate it from the butt joint Mitsubishi R16 diesel engine rocker box.

(3) Remove the Mitsubishi R16 diesel engine rocker housing from the cylinder head of the Mitsubishi R16 diesel engine.

1.9 Disassembly of Mitsubishi R16 Diesel Engine Cylinder Head Assembly

When disassembling the cylinder head assembly of Mitsubishi R16 diesel engine, be careful not to damage the surface of cylinder block of Mitsubishi R16 diesel engine and Mitsubishi R16 diesel engine.

(1) Remove the cylinder head bolts of the Mitsubishi R16 diesel engine.

(2) Using a spreader, lift and remove the cylinder head of the Mitsubishi R16 diesel engine.

Note: The cylinder head of Mitsubishi R16 diesel engine is fixed by the positioning pin, and it must be removed perpendicular to the mounting surface.

(3) Remove the cylinder head gasket of Mitsubishi R16 diesel engine.

1.10 Detecting the amount of air valve sinking

Detect the amount of air valve sinking to grasp the current situation.

For the detection method, refer to the item "Detection of valve sinking amount" of "Assembly of Mitsubishi R16 diesel engine body".

1.11 Dismantling the Air Valve and Mitsubishi R16 Diesel Engine Air Valve Spring

Use a Mitsubishi R16 diesel engine air valve spring remover to compress the springs evenly and take out the 卡 -shaped ferrule of the air valve.

Note: If the air valve is not replaced, the identification mark of the installation position should be made, and the cooperation with the valve seat should not be changed during installation.

1.12 Removing Mitsubishi R16 Diesel Engine Injector Pressure Plate Studs and Bridge Guide Rod

The Mitsubishi R16 diesel engine injector pressure plate studs and bridge guide rod need not be removed from the cylinder head of the Mitsubishi R16 diesel engine if there is no abnormality.

When disassembling, refer to "Mitsubishi R16 Diesel Engine Main Body Inspection and Repair" and "Mitsubishi R16 Diesel Engine Injector Pressure Plate Studs and Bridge Guide Rod Inspection and Replacement".

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