3AC-02203-0 Tohatsu FUEL HOSE

Introduction
Do not perform any procedure in this Special Instruction until you read this information and you understand this information.This Special Instruction describes the procedure to identify Certain combinations of connecting rods in C13 On-Highway Engines are causing engine vibration. The vibration is occurring when an engine has both the 223-9150 Connecting Rod (Fractured) (3) and the 160-8229 Connecting Rod (Machined) (1). A change was made to the 160-8229 Connecting Rod (Machined) (1) to a reduced mass connecting rod (2). The connecting rod can be identified by the part number and the engineering change level. These numbers are located on the shank (A) of the connecting rod.
Illustration 1 g01389866
(A) Location of the part number and the change level for the connecting rod (1) 160-8229 Connecting Rod (Machined) (Change level 00 to 04) (2) 160-8229 Connecting Rod (Machined) (Change level 05 to 06) (3) 223-9150 Connecting Rod The 160-8229 Connecting Rod (Machined) (Change level 00 to 04) (1) cannot be used with 160-8229 Connecting Rod (Machined) (Change level 05 to 06) (2) or with the 223-9150 Connecting Rod (Fractured) (3). The change can also be identified by observing the width of the area for the bolt boss on the connecting rod cap. Refer to Illustration 1.Connecting Rod (1) cannot be mixed with connecting rods (2) or (3). However, 160-8229 Connecting Rod (Machined) (2) can be mixed with 223-9150 Connecting Rod (Fractured) (3) in the same engine.Whenever questions arise about this Special Instruction, contact the local Caterpillar dealership for the latest information.Required Parts
Table 1
Part Number     Part Description    
10R-7989 (1)     Connecting Rod    
10R-7988 (2)     Piston and Rod Gp    
10R-2789 (3)     Connecting Rod    
10R-6214 (4)     Cylinder Pack As    
( 1 ) Use this part number, if one or two of the connecting rods need to be replaced.
( 2 ) Use this part number if one or two of the cylinder packs need to be replaced.
( 3 ) Use this part number if three or more connecting rods need to be replaced.
( 4 ) Use this part number if three or more of the cylinder packs need to be replaced.Procedures
Follow the procedures that are listed below in order to replace the connecting rods or cylinder packs.Procedure to Replace the Connecting Rods
Remove the pistons and the connecting rods from the cylinders. Refer to Disassembly and Assembly, SENR9704, "Pistons and Connecting Rods - Remove"
Illustration 2 g02150087
(1) Retaining ring (2) Piston (3) Piston pin (4) Connecting rod
Remove retaining ring (1) from the groove in the piston body (2). Refer to Illustration 2.
Remove piston pin (3) and piston (2) from connecting rod (4) .
Place piston (2) on connecting rod (4). Apply clean engine oil to piston pin (3) and install the piston pin.
Install retaining ring (1) .
Install the piston and the connecting rods. Refer to Disassembly and Assembly, SENR9704, "Pistons and Connecting Rods - Install"Procedure to Replace the Cylinder Pack
Remove the pistons and connecting rods. Refer to Disassembly and Assembly, SENR9704, "Pistons and Connecting Rods - Remove".
Remove the cylinder liners. Refer to Disassembly and Assembly, SENR9704, "Cylinder Liner - Remove".
Install the cylinder liners. Disassembly and Assembly, SENR9704, "Cylinder Liner - Install".
Install the pistons and connecting rods. Refer to Disassembly and Assembly, SENR9704, "Pistons and Connecting Rods - Install".