C175-16 Marine Engine Caterpillar

Removal Procedure

Show/hide table

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 engine into a suitable container for storage or for disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change".
   Show/hide table

   Illustration 1	g02022243

2. Attach a suitable lifting device onto engine oil cooler (1). The weight of engine oil cooler (1) is approximately 150 kg (330 lb). Remove bolt (3) in order to disconnect clamp (4). Check coupling (2) for leaks.

   Note: Never tighten the bolts in coupling (2) in order to stop the leak. Drain the tube assembly and loosen the bolts on coupling (2). Do not remove coupling (2) but pry in order to disengage the teeth in coupling (2). Remove coupling (2) from the joint.

   Show/hide table

   Illustration 2	g02022246

3. Remove bolts (8). Disconnect tube assembly (7). Remove bolts (6). Disconnect tube assembly (5).
   Show/hide table

   Illustration 3	g02022250

4. Remove bolts (12). Disconnect tube assembly (11). Remove bolts (10). Disconnect tube assembly (9).
   Show/hide table

   Illustration 4	g02022251

5. Remove bolts (13) from engine oil cooler (1). Repeat for the opposite side.
   Show/hide table

   Illustration 5	g02022259

6. Lower engine oil cooler (1) to the ground.

Installation Procedure

Show/hide table

Illustration 6	g02022259

1. Attach a suitable lifting device onto engine oil cooler (1). The weight of engine oil cooler (1) is approximately 150 kg (330 lb).
   Show/hide table

   Illustration 7	g02022251

2. Position engine oil cooler (1). Install bolts (13). Repeat for the opposite side.
   Show/hide table

   Illustration 8	g02022250

   Show/hide table

   Illustration 9	g02022246

3. Connect tube assembly (9). Install bolts (10). Connect tube assembly (11). Install bolts (12). Connect tube assembly (7). Install bolts (8). Connect tube assembly (5). Install bolts (6).
   Show/hide table

   Illustration 10	g02022243

4. Clean the joint and the sealing lip on coupling (2). The tubes are a distance of 20 mm (1.0 inch) from each other. Center coupling (2) over the gap. Lubricate the bolts and tighten the bolts evenly between the bolts. Tighten the bolts to a torque of 20 ± 1 N·m (177 ± 9 lb in). Never tighten the bolts in coupling (2) a second time.

5. Position clamps (4) and install bolt (3). Remove the suitable lifting device from engine oil cooler (1).

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

Disassembly Procedure

Start By:

1. Remove the engine oil cooler.

Note: Note the orientation of the elbow for assembly purposes.

Show/hide table

Illustration 11	g02022459

1. Remove plug (8) and O-ring seal (7). Remove spring (6) and bypass valve (5). Remove bolts (2). Remove elbow (1) and the O-ring seals. Remove bolts (3), elbow (4), and the O-ring seals.
   Show/hide table

   Illustration 12	g02022463

2. Remove bolts (9). Remove elbow (10) and the O-ring seals. Repeat for the opposite side.
   Show/hide table

   Illustration 13	g02022465

3. Remove bolts (11). Remove bonnet (12) and the gaskets. Repeat for the opposite side.

Assembly Procedure

Show/hide table

Illustration 14	g02022465

1. Position the gaskets and bonnet (12). Install bolts (11).
   Show/hide table

   Illustration 15	g02022463

2. Position the O-ring seals and elbow (10). Install bolts (9).
   Show/hide table

   Illustration 16	g02022459

3. Position the O-ring seals and elbow (4). Install bolts (3). Position the O-ring seals and elbow (1). Install bolts (2). Install bypass valve (5) and spring (6). Install O-ring seal (7) and plug (8).

End By:

1. Install the engine oil cooler.