Correct Combinations of Connecting Rods Allowed in Remanufactured Cylinder Packs for Certain C13 Engines{1218, 1225, 1239} Caterpillar

Engine: C11 All C13 and C-13 All

Introduction

Do not perform any procedure in this Special Instruction until you read this information and you understand this information.

Certain combinations of connecting rods in C13 Engines are causing engine vibration. The vibration is occurring when an engine has a mixed set of weight matched rods. This Special Instruction explains the correct combinations of connecting rods that can be used together.

Note: C11 Engines do not experience vibration issues due to differences in connecting rod weight.

Remanufactured Connecting Rod Nomenclature

Illustration 1	g02789667
(A) Location of the connecting rod part number and the change level (1) Reman 10R-7989 Connecting Rod As (2) Reman 20R-0486 Connecting Rod As (3) Reman 10R-2789 Connecting Rod As (4) Reman 10R-4300 Connecting Rod As

Remanufactured connecting rod assembly part numbers are located on the end of the cap. Refer to the remanufactured part number in Table 1 when utilizing remanufactured C13 Cylinder Packs and Connecting Rods.

Remanufactured part numbers 20R-0486 (2), 10R-2789 (3), and 10R-4300 (4) are compatible in mass, and are interchangeable.

Refer to the remanufactured part number on the end cap to ensure that all six connecting rods are weight matched.

Required Parts for KCB1-31547 Truck Engines

(S/N: KCB1-31547) C13 Truck engines were built with 160-8229 00-04 connecting rods and are ~200 g heavier than later designed 160-8229 05-06 and 223-9150 connecting rods. These engines require 10R-7989 (160-8229 00-04) connecting rods or 10R-7988 cylinder packs when three or less cylinders are being replaced. When three or more cylinders are being replaced, use 10R-2789 (160-8229 05-06 and 223-9150) connecting rods or 10R-6214 cylinder packs. Refer to Table 3.

Connecting Rods in C13 Cylinder Packs

Cylinder packs 10R-6214, 10R-6014, and 10R-9609 may be assembled with 10R-2789 (160-8229 05-06), 10R-4300 (223-9150) or 20R-0486 (Weight reduced 160-8229 00-04). Combinations of these connecting rods are acceptable due to similarities in weight.

Cylinder pack 10R-7988 is only assembled with 10R-7989 (160-8229 00-04) and is only to be used on engines with 160-8229 00-04 connecting rods. Refer to Table 4.

Whenever questions arise about this Special Instruction, contact the local Caterpillar dealership for the latest information.

Procedure to Replace the Connecting Rods

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Illustration 2	g02672396

1. Remove the pistons and the connecting rods from the cylinders. Refer to Disassembly and Assembly, SENR9704, "Pistons and Connecting Rods - Remove",

2. Remove retaining ring (1) from the groove in the piston body (2). Refer to Illustration 2.

3. Remove piston pin (3) and piston (2) from connecting rod (4) .

4. Place the piston (2) on the new connecting rod (4) . Apply clean engine oil to piston pin (3) and install the piston pin.

5. Install retaining ring (1) .

6. Install the piston and the connecting rods. Refer to Disassembly and Assembly, SENR9704, "Pistons and Connecting Rods - Install"

Procedure to Replace the Cylinder Pack

1. Remove the pistons and connecting rods. Refer to Disassembly and Assembly, SENR9704, "Pistons and Connecting Rods - Remove"Disassembly and Assembly, SENR9704,

2. Remove the cylinder liners. Refer to Disassembly and Assembly, SENR9704, "Cylinder Liner - Remove".

3. Install the cylinder liners. Refer to Disassembly and Assembly, SENR9704, "Cylinder Liner - Install".

4. Install the pistons and connecting rods. Refer to Disassembly and Assembly, SENR9704, "Pistons and Connecting Rods - Install".