C175-16 Marine Engine Caterpillar

Removal Procedure

Start By:

1. Remove the valve lifter. Refer to Disassembly and Assembly, "Valve Lifter - Remove".

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NOTICE
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products. Dispose of all fluids according to local regulations and mandates.

1. Drain the coolant from the cooling system into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change".
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   Illustration 1	g01837093

2. Disconnect harness assemblies (3). Remove bolts (4). Remove cover (5). Remove bolts (2). Remove lifting bracket (1).

3. Remove bolts (6). Remove cover (7).
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   Illustration 2	g01228235

4. Remove bolts (8). Remove bolt (9). Remove spacer (10). Remove cam gear (11).
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   Illustration 3	g01228236

5. Remove bolts (12) and the washers. Remove retainer (13).
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   Illustration 4	g01837094

6. Disconnect harness assembly (15). Disconnect tube assembly (16).

7. Remove bolts (19). Remove elbow (18).

8. Remove bolts (14). Remove cover (17).
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   Illustration 5	g01228274
   Typical Example

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   Illustration 6	g01228276
   Typical Example

9. Apply a thin coat of oil to Tooling (A) and Tooling (B). Install Tooling (A) and leave the bolts loose. Install Tooling (B). Tighten the bolts for Tooling (A). Install Tooling (C). Use Tooling (C) in order to rotate the camshaft. Rotate the camshaft in order to remove the camshaft.

   Note: The camshaft can be removed from either end of the engine.

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   Illustration 7	g01329080

10. Remove camshaft (20) halfway from the engine. Use a suitable lifting device in order to support camshaft (20). The weight of camshaft (20) is approximately 95 kg (210 lb). Remove the remaining portion of camshaft (20).

Installation Procedure

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Illustration 8	g01228274
Typical Example

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Illustration 9	g01228276
Typical Example

Note: The camshaft can be installed from either end of the engine.

1. Apply a thin coat of oil to Tooling (A) and Tooling (B). Install Tooling (B) into the ends of the camshaft. Install Tooling (C).

   Note: If, Tooling (A) was removed use the following Steps in order to install Tooling (A).

   1. Install Tooling (B) into the engine until Tooling (B) is through the second camshaft bearing.

   2. Slide Tooling (A) over Tooling (B).

   3. Tighten the bolts for Tooling (A).

   4. Remove Tooling (B).
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   Illustration 10	g01329080

2. Attach a suitable lifting device to the middle of camshaft (20). The weight of camshaft (20) is approximately 95 kg (210 lb). Install camshaft (20) halfway into the engine. Remove the suitable lifting device. Install camshaft (20). Use Tooling (C) in order to rotate camshaft (20). Rotate camshaft (20) in order to install camshaft (20).
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   Illustration 11	g01837094

3. Install cover (17). Install bolts (14).

4. Install elbow (18). Install bolts (19).

5. Connect tube assembly (16). Connect harness assembly (15).
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   Illustration 12	g01228236

6. Install retainer (13). Install the washers and bolts (12).
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   Illustration 13	g01228235

7. Rotate the engine so that the number one piston is at top dead center on the compression stroke. Refer to Testing and Adjusting, "Finding Top Center Position for No. 1 Piston". Install cam gear (11). Install the camshaft timing pin. Install spacer (10). Install and tighten bolts (8). Remove the camshaft timing pin. Install and tighten bolt (9).
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   Illustration 14	g01837093

8. Install cover (7). Install bolts (6).

9. Install lifting bracket (1). Install bolts (2). Install cover (5). Install bolts (4). Connect harness assemblies (3).

10. Fill the cooling system with coolant. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change".

End By:

1. Install the valve lifter. Refer to Disassembly and Assembly, "Valve Lifter - Install".