3508C, 3512C and 3516C Marine Engines Inlet and Exhaust Valve Springs - Remove and Install Caterpillar


Inlet and Exhaust Valve Springs - Remove and Install
`
1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
241-0124  Valve Spring Compressor 
441-0714  Tool As 

Start By:

  1. Remove the rocker shaft and pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove".


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


Note: Place the piston at the top of the compression stroke (TC). Remove the valve springs for that cylinder. If the valves fall into the cylinder liner, then the cylinder head must be removed.

  1. Position the No. 1 piston at the top center of the compression stroke. Refer to Testing and Adjusting, "Finding Top Center Position for No. 1 Piston".


    Illustration 1g01133502

    ------ WARNING! ------

    Personal injury can result from being struck by parts propelled by a released spring force.

    Make sure to wear all necessary protective equipment.

    Follow the recommended procedure and use all recommended tooling to release the spring force.


  2. Install Tooling (A) on valve mechanism cover base (6).

  3. Use Tooling (A) to compress inner valve spring (3) and outer valve spring (4). Remove valve spring keepers (1) from the valve.

  4. Carefully remove Tooling (A).

  5. Remove valve rotator (2), inner valve spring (3), and outer valve spring (4).

  6. Remove washer (5) from the exhaust valve guide.

    Note: Washers are not installed on the inlet valve guide.

  7. Use Tooling (B) to check the valve springs (spring force). Refer to Specifications, "Cylinder Head Valves" for additional information on the valve springs.

Installation Procedure

Table 2
Required Tools 
Tool  Part Number  Part Description  Qty 
241-0124  Valve Spring Compressor 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


  1. Lubricate the valve stems with clean engine oil.


    Illustration 2g01133502

    ------ WARNING! ------

    Improper assembly of parts that are spring loaded can cause bodily injury.

    To prevent possible injury, follow the established assembly procedure and wear protective equipment.


  2. Position washer (5), inner valve spring (3), and outer valve spring (4) on the exhaust valve guide.

  3. Position inner valve spring (3) and outer valve spring (4) on the inlet valve guide.

    Note: Washer (5) is not installed on the inlet valve guides.

  4. Position valve rotator (2) on the valve stem.

  5. Install Tooling (A) on valve mechanism cover base (6).

  6. Use Tooling (A) to compress inner valve spring (3) and outer valve spring (4). Install valve spring keepers (1) on the valve. Ensure that the valve spring keepers are properly installed.

    ------ WARNING! ------

    The valve spring keepers can be thrown from the valve when the valve spring compressor is released. Ensure that the valve spring keepers are properly installed on the valve stem. To help prevent personal injury, keep away from the front of the valve spring keepers and valve springs during the installation of the valves.


  7. Carefully remove Tooling (A).

End By:

  1. Install the rocker shaft and pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Install".

Information System:

3508C, 3512C and 3516C Marine Engines Inlet and Exhaust Valves - Remove and Install
GENSET, SR4, SR4 HV, SR4B and SR4B HV Electric Power Generation, 3126, 3176B, 3176C, 3196, 3408E, 3412C, 3412E, 3508, 3508B, 3512, 3512B, 3516, 3516B and G3616 Engines, 3406E GEN SET Generator Set, 3406E IND, 3408C IND and 3456 IND Industrial Engines Global Positioning System Interface Module
C32 Marine Engines Engine Pressure Sensor Open or Short Circuit - Test
C11 and C13 Engines for Caterpillar Built Machines Camshaft - Install
307D, 311D, 312D, 313D, 315D, 318D, 319D, 320D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 340D, 345D, 349D, 374D, 390D and M325D Excavators Air Conditioning and Heating Air Conditioning System Troubleshooting
C11 and C13 Engines for Caterpillar Built Machines Camshaft - Remove
C11 and C13 Engines for Caterpillar Built Machines Cylinder Head - Install
C11 and C13 Engines for Caterpillar Built Machines Cylinder Head - Remove
C32 Marine Engines Electrical Power Supply Circuit - Test
307D, 311D, 312D, 313D, 315D, 318D, 319D, 320D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 340D, 345D, 349D, 374D, 390D and M325D Excavators Air Conditioning and Heating Air Conditioning System Troubleshooting
C32 Marine Engines Digital Sensor Supply Circuit - Test
3508C, 3512C and 3516C Marine Engines Accessory Drive (Front) - Assemble - Engine Oil Pump and Water Pump
3500 Engines Inlet and Exhaust Valve Seat Inserts - Remove and Install
3508C, 3512C and 3516C Marine Engines Inlet and Exhaust Valve Guides - Remove and Install
C32 Marine Engines Engine Speed/Timing Sensor Circuit - Test
C0.5, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Wastegate - Test
C7 and C9 Marine Engines Engine Synchronize Switch Circuit - Test
C7 Engines for Caterpillar Built Machines Fuel System Pressure - Test
C7 Engines for Caterpillar Built Machines Turbocharger - Inspect
C7 Engines for Caterpillar Built Machines Engine Oil Pressure - Test
307D, 311D, 312D, 313D, 315D, 318D, 319D, 320D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 340D, 345D, 349D, 374D, 390D and M325D Excavators Air Conditioning and Heating Heating System Troubleshooting
C27 and C32 Industrial and Petroleum Engines Engine Temperature Sensor Open or Short Circuit - Test
C32 Marine Engines Indicator Lamp Circuit - Test
C32 Marine Engines Injector Solenoid Circuit - Test