3306C Truck Engine Caterpillar

Disassembly Procedure

Start By:

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

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Illustration 1	g00484932

1. Remove the piston rings from the pistons with tool (A) .

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Illustration 2	g00484980

2. Remove retaining ring (3) , piston pin (1) and connecting rod (2) .

3. Remove the connecting rod bearing.

4. Heat the connecting rod in an oven to a temperature of 176 to 260 °C (350 to 500 °F). Do not use a direct flame to heat a connecting rod.

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Illustration 3	g00485038

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Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin.

5. Put 6V-3029 Spacer (11) into the base plate. Put the connecting rod on the base plate of Tool (B) .

6. Put the connecting rod piston pin bearing end in the center of the port assembly of Tool (B) . Install pin (5) in the center of the bore for the connecting rod bearing.

7. Install 6V-2049 Adapter (9) . Align the hole in the adapter with the hole in the base plate of tool (B) .

8. Install clamp bar (10) and clamp pin (4) .

   Note: The old piston pin bearing is removed while the new piston pin bearing is installed.

9. Put the new piston pin bearing on the connecting rod. Install 5P-8645 Adapter (8) with the tapered end of the adapter toward the piston pin bearing. The piston pin bearing joint must be in alignment with the hole in adapter (9) and the base plate of Tool (B) .

10. Install adapter (7) from the press group on adapter (11) .

11. Use Tool (B) to push the new piston pin bearing (6) into the connecting rod. Press piston pin bearing (6) into position until adapter (8) makes contact with the connecting rod surface.

12. Remove the connecting rod and the old piston pin bearing from Tool (B) .

13. Check the piston pin bearing bore diameter after the bearing is installed. The correct inside diameter is 43.210 ± 0.008 mm (1.7012 ± 0.0003 inch). The clearance between the bearing and the piston pin must not be more than 0.08 mm (0.003 inch). Refer to Special Instruction, SMHS7295 for additional information on removing the piston pin bearings.