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Perkins Carter CAT Strong Deer Cummins Engine Cylinder Head


Detailed Description:

Perkins Carter CAT Strong Deer Cummins Engine Cylinder Head

Where are the original cylinder heads for Perkinscat CAT strong deer Cummins engines?

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Analysis and diagnosis of cylinder head gasket failure of Perkins Carter CAT strong deer Cummins diesel engine

Perkins Carter CAT Strong Deer Cummins cylinder head gasket failure is usually divided into three categories:

Continue the following overall inspections and visual inspections:

• Cylinder head (this chapter)

- Check whether the surface of Perkins Carter CAT Strong Deer Cummins is flat / smooth

-Check the surface for damage.

-If re-padding, check cylinder head thickness.

• Cylinder block and bushing (after assembly and clamping) (Chapter 030)

-Check the amount of liner protrusion at four positions per cylinder liner.

-Check the difference in bush protrusion between Perkins Carter CAT Strong Deer Cummins cylinders.

• Cylinder block (Chapter 030)

- Check whether the surface is flat / smooth

-Check the surface for damage.

-Check the counterbore depth of the bushing (if the bushing is removed).

-Check the dimensions of the centerline of the top crankshaft of the Perkinscat CAT Strong Deer Cummins.

-Check cap screws boss; must be clean / complete.

• Cylinder liners (Chapter 030)

- Check if the bushing flange is flat

-Check bushing flange thickness (if bushing is removed).

-Inspect flange for damage.

• Cylinder head cap screws (this chapter)

-Check the thread condition.

-Check the length.

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Reassemble the engine according to the procedures and specifications in the appropriate maintenance section of this manual.

Further sampling and analysis of coolant and oil.

If the Perkins Carter CAT Strong Deer Cummins engine can run safely, start and warm up the Perkins Carter CAT Strong Deer Cummins engine. Follow the previous instructions to check all possible leak locations. Using the right test and measurement equipment, check for the following: • Exhaust system for white smoke, excessive crude oil, or oil mist.

• Harsh, irregular exhaust emissions, or misfires.

• Air bubbles or gas in the radiator / overflow tank.

• Coolant overflow loss.

• The cooling system pressure is too high.

• The coolant is too hot.

• Coolant flow is too low.

• Inadequate heating in the cab (air blockage).

Shut down Perkins Carter CAT Strong Deer Cummins engine. Re-check the crankcase, radiator, and overflow tank for any significant differences in level, viscosity, or appearance from standard values.

Compare the conclusions observed in the above steps with the corresponding diagnostic steps in Part 04-Chapter 150. If diagnostic evaluations and observations provide clear evidence of combustion gas, coolant or oil leaking from the cylinder head gasket connection, the cylinder head must be removed for inspection and the gasket connection assembly must be repaired.

Cylinder head gasket inspection and repair sequence

• Burning seal leaks.

• Coolant seal leaks.

• The oil seal is leaking.

A combustion seal failure occurs when combustion gas leaks between the cylinder liner and the liner combustion flange or between the combustion chamber flange and the cylinder liner. The leaked combustion gas will enter the adjacent cylinder, enter the coolant or oil passage, or leak out.

When oil or coolant leaks between the cylinder head and the gasket, or between the cylinder and the gasket, a coolant or oil seal failure occurs. Oil or coolant may leak into adjacent coolant or oil passages or leak outward.

When cylinder head gasket joint failure is suspected or does occur, the following diagnostic steps should be performed.

Before starting or disassembling the engine, visually inspect the machine and note whether the following conditions are found:

• There is no leakage of organic oil or coolant at the seams or adjacent surfaces of the cylinder head gaskets, especially at the corners directly behind the gaskets.

• The pad is positioned correctly.

• Is there any soot due to leakage of combustion gases?

• Leaks from radiators, overflow tanks or hoses.

• Check for coolant leakage from the coolant pump drain hole.

• Whether the radiator, fan, or wheel cover is damaged and in the correct position.

• Whether the air or coolant flow is obstructed.

• Whether the belt is worn or cracked.

• Whether the pressure cap is damaged and in the correct position.

• Is there any oil in the coolant?

• The coolant level is too low or the coolant used is not satisfactory.

• Perkins Carter CAT Strong Deer Cummins oil level is too high or too low.

• Engine oil is degraded, diluted or contaminated.

• The electronic injector is correctly adjusted.

• Are there any signs that the fuel delivery is out of sync with the gear train.

• There is unburned fuel or coolant in the exhaust system.

A-Combustion seal (flange) B-Gasket body C-Front end of engine

When Perkins Carter CAT Strong Deer Cummins cylinder head gasket connection is faulty or the connection is to be disconnected, the following inspection steps are recommended.

View historical data related to machine operation, maintenance, and repair, as well as diagnostic data. Make a note of all areas that require further inspection and analysis in Henan, Fujian, Gansu, Guizhou, Hebei, Hubei, Jilin, Jiangsu, Jiangxi, Liaoning, Qinghai, Shandong, Shanxi, Sichuan, Yunnan, Zhejiang, Guangdong, Guangxi, Inner Mongolia, Ningxia, Tibet, and Shanghai.

Remove the cover of the rocker arm and check whether the coolant is mixed in the oil.

Before removal, record the torque of the cylinder head cap screws. After removing the bolts, check the length difference of the cap screws.

Remove the cylinder head with appropriate lifting equipment to prevent damage to the cylinder head gasket during operation. (See the "Removing the Cylinder Head" section in this chapter.)

Observe the surface of the removed Perkinscat CAT Strong Deer Cummins cylinder liner.

Check if Perkins Carter CAT Strong Deer Cummins Combustion Seal (A):

• Cam flange is broken / expanded / broken / deformed.

• Burns / erosion in adjacent areas.

• Ignition ring disconnected / displaced / missing.

• Cam flange is not tightly sealed / contains air holes.

• Discoloration of cam flange and adjacent area of cylinder pad.

• Cam edge surface is rough / worn / grooved. Check the gasket (B) for the following:

• Gas attack grooves or soot deposits in the combustion seal.

• Local discoloration / hardening / embrittlement is severe.

• Oil or coolant is flowing out of the oil duct area.

• Local area pressure is too low.

Before cleaning the components, inspect the cylinder head, cylinder block and gaskets for leaks of combustion gases and liquids. Inspect the cylinder and valve passages for abnormal sedimentation.

Clean the cylinder block. (See the "Inspecting and Cleaning the Cylinder Block" section in Chapter 030.) Clean the cylinder head. (See the "Cleaning and Inspecting the Cylinder Head" section in this chapter.) Clean the bushings. (See the "Cleaning the Cylinder Liner" section in Chapter 030.)

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