C175-16 Marine Engine Caterpillar

Disassembly Procedure

Start By:

1. Remove the pistons, liners, and connecting rods. Refer to Disassembly and Assembly, "Pistons, Liners, and Connecting Rods - Remove".

Show/hide table

Illustration 1	g01520323

1. Attach Tooling (A) and a suitable lifting device onto connecting rod (1). The weight of connecting rod (1) and the piston is approximately 23 kg (50 lb). Remove connecting rod (1) and the piston from liner (2).
   Show/hide table

   Illustration 2	g01229379

2. Remove O-ring seals (3) from liner (2).
   Show/hide table

   Illustration 3	g01229403

3. Use Tooling (B) in order to remove retaining ring (4). Remove wrist pin (5) and remove connecting rod (1) from piston (6).
   Show/hide table

   Illustration 4	g01229404

4. Use Tooling (C) and remove piston rings (7) from piston (6).

Assembly Procedure

Show/hide table

Illustration 5	g01229404

1. Use Tooling (E) for the ring grooves. Use Tooling (C) and install piston rings (7) onto piston (6). Install the top ring with the side that is marked UP 1 toward the top of the piston. Install the intermediate ring with the side that is marked UP 2 toward the top of the piston. The oil ring spring ends must be assembled 180 degrees from the ring end gap. After the rings have been installed, rotate the rings so that the end gaps are located 120 degrees from each other. Oil ring end gap must be in the pin bore plane.
   Show/hide table

   Illustration 6	g01229403

2. Coat connecting rod (1) and wrist pin (5) with clean engine oil. Install connecting rod (1) into piston (6). Install wrist pin (5) into piston (6) and connecting rod (1). Use Tooling (B) in order to install retaining ring (4). Position retaining ring (4) with the opening toward the bottom of the piston.
   Show/hide table

   Illustration 7	g01229379

3. Install O-ring seals (3) onto liner (2).
   Show/hide table

   Illustration 8	g01240871

4. Coat piston (6) and the piston rings with clean engine oil. Install Tooling (D) onto piston (6). Tighten Tooling (D) in order to compress the piston rings.
   Show/hide table

   Illustration 9	g01240872

5. Coat the inside of liner (2) with clean engine oil. Attach Tooling (A) and a suitable lifting device onto the connecting rod. The weight of the connecting rod and the piston assembly is approximately 23 kg (50 lb). Install the connecting rod and the piston assembly into the bottom side of liner (2).
   Show/hide table

   Illustration 10	g01520432

6. Remove Tooling (D) from liner (2).

   Note: Do not permit the piston to go past the top dead center position. If the piston goes past the top dead center position, the piston rings will lock into the cuff ring bore.

End By:

1. Install the pistons, liners, and connecting rods. Refer to Disassembly and Assembly, "Pistons, Liners, and Connecting Rods - Install".