C175-16 Generator Set Engine Caterpillar

Removal Procedure

Start By:

1. Remove the starting motors. Refer to Disassembly and Assembly, "Electric Starting Motor - Remove" or Disassembly and Assembly, "Air Starting Motor - Remove".

2. Remove the fuel filter base. Refer to Disassembly and Assembly, "Fuel Filter Base - Remove".

3. Remove the fuel pump. Refer to Disassembly and Assembly, "Fuel Pump - Remove".

4. Remove the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Remove".

5. Remove the engine oil cooler. Refer to Disassembly and Assembly, "Engine Oil Cooler - Remove".

6. Remove the engine oil scavenge pump. Refer to Disassembly and Assembly, "Engine Oil Scavenge Pump - Remove".

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Illustration 1	g01212026

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Illustration 2	g01212278

1. Remove bolts (1) and remove side cover (2). Repeat for the remaining side covers on both sides of the engine.

2. Remove bolt (5) from each side of the engine and install Tooling (G).
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   Illustration 3	g01212105

3. Install Tooling (A) onto the studs for the crankshaft main bearing cap. Tighten the threaded collar of Tooling (A). Loosen the threaded collar of Tooling (A) by 1 1/2 turns. Attach Tooling (B) onto Tooling (A). Attach Tooling (B) onto Tooling (C). Attach Tooling (C) onto Tooling (D). Apply approximately 135 MPa (19580 psi) of pressure to Tooling (A). Use the drive on Tooling (A) in order to loosen the nuts for the crankshaft main bearings. Rotate the drive on Tooling (A) by approximately three turns. Release the pressure on Tooling (A). Remove Tooling (A).
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   Illustration 4	g01212274

4. Remove crankshaft main bearing nuts (3). Remove plate (4).
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   Illustration 5	g01212288

5. Slide down crankshaft main bearing cap (6) on the studs. Remove crankshaft main bearing (7) from crankshaft main bearing cap (6).

6. Install Tooling (F) in order to remove the upper crankshaft main bearing. If necessary, use Tooling (E) in order to rotate the crankshaft and remove the upper crankshaft main bearing.

Installation Procedure

1. Install crankshaft main bearing (7) in the reverse order of removal.

   1. Tighten main bearing studs (8) to a torque of 100 ± 20 N·m (74 ± 15 lb ft).

   2. Start at the front of the engine and tighten bolts (5) on the right side of the cylinder block to a torque of 100 ± 20 N·m (74 ± 15 lb ft).

      Note: Show 14 to 15 threads or 28 to 30 mm of protrusion of the stud above the nut before tension is applied. Show 16 to 17 threads or 32 to 34 mm of protrusion of the stud above the nut after tension is applied.

   3. Install Tooling (A) onto the studs for the crankshaft main bearing cap. Tighten the threaded collar of Tooling (A). Loosen the threaded collar of Tooling (A) by 1 1/2 turns. Attach Tooling (B) onto Tooling (A). Attach Tooling (C) onto Tooling (D). Apply approximately 135 MPa (19580 psi) of pressure to Tooling (B). Use the drive on Tooling (A) in order to tighten the nuts for the crankshaft main bearings. Release the pressure on Tooling (A). Reapply approximately 135 MPa (19580 psi) of pressure to Tooling (A). Recheck nuts (3) for tightness. Remove Tooling (A).

   4. Start at the front of the engine and tighten bolts (5) on the left side of the cylinder block to a torque of 100 ± 20 N·m (74 ± 15 lb ft).

   5. Start at the front of the engine and tighten bolts (5) on the right side of the cylinder block to a torque of 530 ± 70 N·m (391 ± 52 lb ft).

   6. Start at the front of the engine and tighten bolts (5) on the left side of the cylinder block to a torque of 530 ± 70 N·m (391 ± 52 lb ft).