3056E Industrial Engine Caterpillar


Engine Oil Relief Valve - Remove and Install

Usage:

3056E 356

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
1P-1857  Retaining Ring Pliers 

Start By:

  1. Remove the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove and Install".


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 1g00941609

  1. Remove bolts (8) that hold tube assembly (9) for engine oil relief valve (2).

    Note: Tube assembly (9) is used when the engine oil filter is installed on the right side of the engine.

  2. Remove bolts (1). Remove engine oil bypass valve (2) from cylinder block (7).

    ------ 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.


  3. Use Tooling (A) in order to remove retaining ring (6), seat (5), spring (4), and plunger (3) from the housing.

  4. Check the seat, the spring, the plunger, and the housing for wear or for other damage. The plunger (3) must slide easily in the housing.

Installation Procedure

Table 2
Required Tools 
Tool  Part Number  Part Description  Qty 
1P-1857  Retaining Ring Pliers 


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


  1. Clean the mating surfaces of the engine oil relief valve and the cylinder block.

  2. Clean the internal components of the engine oil relief valve. Lubricate the internal components of the engine oil relief valve with clean engine oil.

    ------ 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.




    Illustration 2g00941609

  3. Install plunger (3), spring (4), and seat (5) in the housing. Apply pressure to seat (5) and install retaining ring (6) with Tooling (A).

  4. Install the engine oil bypass valve (2). Install bolts (1). Tighten bolts (1) to a torque of 22 N·m (16 lb ft).

  5. Install tube assembly (9) to engine oil bypass valve (2). Install bolts (8).

    Note: Tube assembly (9) is used when the engine oil filter is installed on the right side of the engine.

End By:

  1. Install the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove and Install".
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