3003, 3013, 3014 and 3024 Engines for Caterpillar Built Machines Caterpillar

Removal Procedure

Start By:

1. Remove the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Remove".

1. Clean the bottom face of the cylinder head. Use a dial indicator to check the depth of the valves below the face of the cylinder head before the valve springs are removed. Refer to the Specifications, "Cylinder Head Valves" for the correct dimensions.

2. Place an index mark on the heads of the inlet valves and the exhaust valves for installation purposes.

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Illustration 1	g00659252

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Illustration 2	g00825746

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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.

3. Use Tooling (A) to compress valve springs (3) .

4. Remove two valve keepers (1) .

5. Slowly release the pressure on Tooling (A) and remove Tooling (A) .

6. Remove valve spring retainers (2) .

7. Remove valve springs (3) .

8. Remove valve stem seals (4) .

9. Remove valve spring seat washers (5) .

10. Remove inlet valves (6) and exhaust valves (6) .

Removal Procedure (Alternate Method)

Follow the instructions above using Tooling (B) .

Installation Procedure

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Illustration 3	g00659252

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Illustration 4	g00825746

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NOTICE
Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

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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.

1. Lubricate the stems of inlet valves (6) and the stems of exhaust valves (6) with clean engine oil.

2. Install inlet valves (6) and exhaust valves (6) in the respective positions.

3. Install valve spring seat washers (5) .

4. Install new valve stem seals (4) .

5. Install valve springs (3) .

   Note: Install valve springs (3) on the valve spring seat washers. This is done with double valve springs.

6. Install valve spring retainers (2) .

7. Use Tooling (A) to compress valve springs (3) .

8. Install valve keepers (1) .

9. Slowly release the pressure on Tooling (A) and remove Tooling (A). Strike the top of the valves with a soft hammer in order to ensure that the valve keepers are properly installed.

   Note: Refer to Specifications, "Cylinder Head Valves" for more information on the inlet valves and the exhaust valves.

10. Use a dial indicator to check the depth of the new valves below the cylinder head. If the depth of the new valves is below the correct depth, the valve seat inserts must be replaced.

End By: Install the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Install".

Installation Procedure (Alternate Method)

Follow the procedure above using Tooling (B).